{"id":21558,"date":"2025-12-16T08:08:06","date_gmt":"2025-12-16T08:08:06","guid":{"rendered":"https:\/\/www.vincervalve.com\/?p=21558"},"modified":"2026-05-07T09:18:58","modified_gmt":"2026-05-07T09:18:58","slug":"fail-open-vs-fail-close","status":"publish","type":"post","link":"https:\/\/www.vincervalve.com\/ko\/fail-open-vs-fail-close\/","title":{"rendered":"\ubc38\ube0c \uc548\uc804 \uae30\ucd08: \ubc38\ube0c\ub294 \u2018\uc5f4\ub9bc \uc0c1\ud0dc\u2019\ub85c \uace0\uc7a5 \ub098\uc57c \ud560\uae4c\uc694, \uc544\ub2c8\uba74 \u2018\ub2eb\ud798 \uc0c1\ud0dc\u2019\ub85c \uace0\uc7a5 \ub098\uc57c \ud560\uae4c\uc694?"},"content":{"rendered":"<h2 data-pm-slice=\"1 1 []\">\uc18c\uac1c<\/h2>\n<p>\uc0b0\uc5c5 \uacf5\uc815\uc758 \ubcf5\uc7a1\ud55c \uc124\uacc4\uc5d0\uc11c \uc5d4\ud2b8\ub85c\ud53c\ub9cc\uc774 \uc720\uc77c\ud55c \ud655\uc2e4\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4. \uc2dc\uc2a4\ud15c\uc740 \ud56d\uc0c1 \uc911\ub2e8 \ud604\uc0c1\uc744 \uacaa\uac8c \ub9c8\ub828\uc778\ub370, \uadf8\uac83\uc774 <strong>\uad8c\ub825\uc758 \ud589\uc0ac<\/strong> \uc815\uc804, \uc555\ucd95 \uacf5\uae30 \uacf5\uae09 \uc911\ub2e8 \ub610\ub294 \uc2e0\ud638 \uc190\uc2e4 \ub4f1. \uc2dc\uc2a4\ud15c\uc744 \uc81c\uc5b4\ud558\ub294 \uc5d0\ub108\uc9c0\uac00 \uc18c\uc9c4\ub418\uba74, \uae30\uacc4\ub294 \ub2e8\uc21c\ud788 \uc874\uc7ac\ub97c \uba48\ucd94\ub294 \uac83\uc774 \uc544\ub2c8\ub77c \uae30\ubcf8 \uc0c1\ud0dc\ub85c \uc804\ud658\ub429\ub2c8\ub2e4. \uacf5\uc815 \uc5d4\uc9c0\ub2c8\uc5b4\uc5d0\uac8c \uac00\uc7a5 \uc911\uc694\ud55c \uc9c8\ubb38\uc740 \u2018\uace0\uc7a5\uc774 \ubc1c\uc0dd\ud560 \uac83\uc778\uac00\u2019\uac00 \uc544\ub2c8\ub77c, \u2018\uace0\uc7a5\uc774 \ubc1c\uc0dd\ud558\uba74 \uc5b4\ub5a4 \uc77c\uc774 \ubc8c\uc5b4\uc9c0\ub294\uac00\u2019\uc785\ub2c8\ub2e4.<\/p>\n<p>\ubc14\ub85c \uc5ec\uae30\uc5d0 \u2018\ud398\uc77c\uc138\uc774\ud504(Fail-Safe)\u2019\uc758 \ub17c\ub9ac\uac00 \uc790\ub9ac \uc7a1\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc7ac\uc559\uc774 \ub2e5\ucce4\uc744 \ub54c \u2018\uac00\uc7a5 \ub35c \ub098\uc05c \uacb0\uacfc\u2019\uc5d0 \ucd08\uc810\uc744 \ub9de\ucd98 \ud569\ub9ac\uc801\uc778 \uc758\uc0ac\uacb0\uc815 \uacfc\uc815\uc785\ub2c8\ub2e4. \uc720\uccb4 \uc5ed\ud559\uc5d0\uc11c \uc8fc\uc694 \uc81c\uc5b4 \uad6c\uc131 \uc694\uc18c\uc778 \uc790\ub3d9 \ubc38\ube0c\ub294 \uc2dc\uc2a4\ud15c\uc758 \ube44\uc0c1 \ube0c\ub808\uc774\ud06c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uadf8 \ube0c\ub808\uc774\ud06c\uac00 \uc791\ub3d9\ud560 \ub54c, \uc720\ucd9c\uc744 \ub9c9\uae30 \uc704\ud574 \uc720\uccb4\uc758 \ud750\ub984\uc744 \ucc28\ub2e8\ud560\uae4c\uc694, \uc544\ub2c8\uba74 \ud3ed\ubc1c\uc744 \ub9c9\uae30 \uc704\ud574 \uc720\uccb4\ub97c \ubc30\ucd9c\ud560\uae4c\uc694?<\/p>\n<p>\uc774\uc5d0 \ub300\ud55c \uc815\ub2f5\uc740 \uc5c6\uc2b5\ub2c8\ub2e4. \u2018\uac1c\ubc29\ud615 \uace0\uc7a5(Fail Open, FO)\u2019 \ub610\ub294 \u2018\ud3d0\uc1c4\ud615 \uace0\uc7a5(Fail Closed, FC)\u2019\uc740 \uc778\uba85 \uc548\uc804, \uc790\uc0b0 \ubcf4\ud638, \uacbd\uc81c\uc801 \ud6a8\uc728\uc131 \uac04\uc758 \uade0\ud615\uc744 \ub9de\ucd94\ub294 \uc911\uc694\ud55c \uc704\ud5d8 \uad00\ub9ac \uacfc\uc815\uc785\ub2c8\ub2e4. \ubcf8 \ub17c\ubb38\uc5d0\uc11c\ub294 \ubc38\ube0c \uace0\uc7a5 \ubaa8\ub4dc\uc758 \uc791\ub3d9 \uc6d0\ub9ac, \uadfc\uac70, \uadf8\ub9ac\uace0 \ud575\uc2ec \uc120\uc815 \uae30\uc900\uc744 \uc0c1\uc138\ud788 \ubd84\uc11d\ud569\ub2c8\ub2e4.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-24128\" src=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close1-225x300.webp\" alt=\"\u2018fail open\u2019 \ub300 \u2018fail close\u2019\" width=\"384\" height=\"512\" srcset=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close1-225x300.webp 225w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close1-450x600.webp 450w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close1.webp 768w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/p>\n<h2 data-pm-slice=\"1 1 []\">\ud310\ub9c9 \uace0\uc7a5\uc758 \uc6d0\uc778\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n<p>\uace0\uc7a5 \uc720\ud615\uc744 \ud30c\uc545\ud558\uae30 \uc704\ud574\uc11c\ub294 \uace0\uc7a5\uc744 \ubd84\ub958\ud574\uc57c \ud569\ub2c8\ub2e4. \uc790\ub3d9 \ubc38\ube0c, \uc989 \uacf5\uc555\uc2dd \ubc0f \uc804\uae30\uc2dd \uc561\ucd94\uc5d0\uc774\ud130\uc758 \uacbd\uc6b0, \uace0\uc7a5\uc774 \ubc18\ub4dc\uc2dc \uc2a4\ud15c\uc774 \ubd80\ub7ec\uc9c0\uac70\ub098 \ubcf8\uccb4\uac00 \ud30c\uc190\ub418\ub294 \ub4f1 \ubd80\ud488\uc758 \ud30c\uc190\uc744 \uc758\ubbf8\ud558\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uc624\ud788\ub824 \ubc38\ube0c\ub97c \uc791\ub3d9 \uc704\uce58\uc5d0 \uc720\uc9c0\ud558\ub294 \ub370 \ud544\uc694\ud55c \ud798\uc774 \uc0c1\uc2e4\ub41c \uc0c1\ud0dc\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc774\ub7ec\ud55c \ud1b5\uc81c\ub825 \uc0c1\uc2e4\uc758 \uc8fc\uc694 \uc6d0\uc778\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\uc804\uc6d0 \uacf5\uae09 \uc911\ub2e8:<\/strong> \uc194\ub808\ub178\uc774\ub4dc \ubc38\ube0c\ub098 \uc804\uae30 \uc561\ucd94\uc5d0\uc774\ud130\ub85c\uc758 \uc804\uc6d0 \uacf5\uae09\uc774 \ub04a\uaca8, \ubaa8\ud130\ub098 \uc790\uc11d \ucf54\uc77c\uc774 \uc791\ub3d9\ud558\uc9c0 \uc54a\uac8c \ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uacf5\uae30\uc555 \uc800\ud558:<\/strong> \uacf5\uc555 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0, \uc555\ucd95\uae30 \uace0\uc7a5, \uacf5\uae09 \ub77c\uc778\uc758 \uaf2c\uc784 \ub610\ub294 \uacf5\uae30 \ub77c\uc778 \ud30c\uc190\uc73c\ub85c \uc778\ud574 \ubc38\ube0c\ub97c \ube44\uc815\uc0c1 \uc704\uce58\uc5d0 \uace0\uc815\ud558\uace0 \uc788\ub358 \ud798\uc774 \uc0ac\ub77c\uc9c0\uac8c \ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uc2e0\ud638 \uc911\ub2e8: <\/strong>PLC \ubc30\uc120\uc774 \ub04a\uc5b4\uc9c0\uac70\ub098 \uc81c\uc5b4 \ub8e8\ud504\uc5d0 \uc624\ub958\uac00 \ubc1c\uc0dd\ud558\uba74, \uc804\uc6d0\uc774 \uacf5\uae09\ub418\uace0 \uc788\uc744\uc9c0\ub77c\ub3c4 \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uba85\ub839\uc744 \ubc1b\uc9c0 \ubabb\ud558\uac8c \ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774\ub7ec\ud55c \uc5d0\ub108\uc9c0 \uacf5\uae09\uc6d0\uc774 \uc0ac\ub77c\uc9c0\uba74 \ubc38\ube0c\ub294 \ub354 \uc774\uc0c1 \ub2a5\ub3d9\uc801\uc73c\ub85c \uc81c\uc5b4\ub418\uc9c0 \uc54a\uac8c \ub429\ub2c8\ub2e4. \ubc14\ub85c \uc774 \uc5d0\ub108\uc9c0 \uc190\uc2e4\uc774 \ubc1c\uc0dd\ud558\ub294 \uc2dc\uc810\uc5d0\uc11c \ubc38\ube0c\ub294 \uc2a4\uc2a4\ub85c \uacb0\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. \uc5f4\ub9b0 \uc704\uce58\ub85c \ub3cc\uc544\uac00\uc57c \ud560\uc9c0, \uc544\ub2c8\uba74 \uac11\uc790\uae30 \ub2eb\ud600\uc57c \ud560\uc9c0 \ub9d0\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub3c5\ub9bd\uc801\uc778 \ubc18\uc751\uc740 \uc124\uacc4 \ub2e8\uacc4\uc5d0\uc11c \uc120\ud0dd\ud55c \u201c\ud398\uc77c\uc138\uc774\ud504(Fail-Safe)\u201d \uad6c\uc131\uc5d0 \ub530\ub77c \ubbf8\ub9ac \uc815\ud574\uc9d1\ub2c8\ub2e4.<\/p>\n<h2>\u2018\ud398\uc77c \uc624\ud508 \ubc38\ube0c(\uacf5\uae30 \uc791\ub3d9\uc2dd \ud3d0\uc1c4\ud615)\u2019\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n<p>\uae30\uc220\uc801\uc73c\ub85c \u2018\uacf5\uae30 \ud3d0\uc1c4\ud615(ATC)\u2019 \ubc38\ube0c\ub77c\uace0\ub3c4 \ubd88\ub9ac\ub294 \u2018\uc2e4\ud328 \uc2dc \uac1c\ubc29\ud615(FO)\u2019 \ubc38\ube0c\ub294 \uc678\ubd80 \ub3d9\ub825\uc774 \uac00\ud574\uc9c0\uc9c0 \uc54a\uc744 \ub54c \uc644\uc804\ud788 \uc5f4\ub9b0 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud558\ub294 \uae30\ubcf8 \uae30\uacc4\uc801 \ud2b9\uc131\uc774 \ud2b9\uc9d5\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc791\ub3d9 \uc6d0\ub9ac\ub97c \uac00\ub2a5\ud558\uac8c \ud558\ub294 \uad6c\uc870\uc801 \ud2b9\uc9d5\uc740 \ubc38\ube0c \uc2a4\ud15c\uc744 \ubb3c\ub9ac\uc801\uc73c\ub85c \ubc14\uae65\ucabd\uc73c\ub85c \ubc00\uc5b4\ub0b4\ub294 \uace0\uac15\ub3c4 \ub0b4\ubd80 \uc2a4\ud504\ub9c1\uc785\ub2c8\ub2e4. \uc2dc\uc2a4\ud15c\uc740 \ubc38\ube0c\ub97c \ub2eb\uae30 \uc704\ud574 \uc561\ucd94\uc5d0\uc774\ud130 \ucc54\ubc84\uc5d0 \uc555\ucd95 \uacf5\uae30(\ub610\ub294 \uc804\uae30)\ub97c \uacf5\uae09\ud560 \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4. \uc774 \uc5d0\ub108\uc9c0\ub294 \uc2a4\ud504\ub9c1\uc758 \uc7a5\ub825\uc5d0 \ub300\ud56d\ud558\uc5ec \uc2a4\ud504\ub9c1\uc744 \uc555\ucd95\ud568\uc73c\ub85c\uc368 \ubc38\ube0c\ub97c \ub2eb\ud78c \uc0c1\ud0dc\ub85c \uc720\uc9c0\ud55c\ub2e4. \ub530\ub77c\uc11c \uc815\uc804\uc774\ub098 \ud56d\uacf5\uae30 \uace0\uc7a5 \ub4f1\uc73c\ub85c \uc778\ud574 \uc5d0\ub108\uc9c0 \uacf5\uae09\uc774 \uc911\ub2e8\ub418\uba74, \ub300\ud56d\ud558\ub294 \ud798\uc774 \uc0ac\ub77c\uc9c0\uace0 \uc2a4\ud504\ub9c1\uc774 \uc989\uc2dc \ub298\uc5b4\ub098\uba70 \ubc38\ube0c\ub294 \uc6d0\ub798\uc758 \uc5f4\ub9b0 \uc0c1\ud0dc\ub85c \ub418\ub3cc\uc544\uac04\ub2e4.<\/p>\n<p>\ud398\uc77c \uc624\ud508(Fail Open) \ubc38\ube0c\uc758 \uc8fc\uc694 \uc5ed\ud560\uc740 \uc555\ub825 \uc644\ud654 \ub610\ub294 \ub0c9\uac01 \ubcf4\uc7a5 \uc2dc\uc2a4\ud15c\uc758 \uae30\ub2a5\uc744 \uc218\ud589\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \ubc38\ube0c\ub294 \uc720\ub3d9 \uc790\uccb4\ubcf4\ub2e4 \uc5f4\uc774\ub098 \uc555\ub825\uc758 \ucd95\uc801\uc774 \ub354 \uc2ec\uac01\ud55c \uc704\ud611\uc774 \ub418\ub294 \uc5f4\uc5ed\ud559\uc801 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ud3ed\ub113\uac8c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud654\ud559 \ubc18\uc751\uae30\uc758 \ub0c9\uac01 \uc7ac\ud0b7\uc5d0\uc11c \uc774 \ubc38\ube0c\ub294 \uc804\uccb4 \ud50c\ub79c\ud2b8\uc758 \uc804\uc6d0\uc774 \uc644\uc804\ud788 \ub04a\uae34 \uc0c1\ud669\uc5d0\uc11c\ub3c4 \ubb3c\uc774 \uacc4\uc18d \uc21c\ud658\ub418\ub3c4\ub85d \ud558\uc5ec \ubc18\uc751\uae30\uac00 \uacfc\uc5f4\ub418\uc9c0 \uc54a\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c, \uc99d\uae30 \ubc30\uad00\uc5d0\uc11c\ub294 \uc81c\uc5b4 \uc2dc\uc2a4\ud15c\uc774 \uace0\uc7a5 \ub0ac\uc744 \ub54c \ud30c\uc774\ud504\uac00 \ud30c\uc5f4\ub418\uc9c0 \uc54a\ub3c4\ub85d \uacfc\uc789 \uc555\ub825\uc744 \uc548\uc804\ud55c \uacf3\uc73c\ub85c \ubc29\ucd9c\ud558\ub294 \ub370 \uc774 \ubc38\ube0c\uac00 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uc124\uacc4\uc758 \ub3c5\ubcf4\uc801\uc778 \uc7a5\uc810\uc740 \ud3ed\ubc1c\uc774\ub098 \uc5f4 \ud3ed\uc8fc\uc640 \uac19\uc740 \uce58\uba85\uc801\uc778 \ubb3c\ub9ac\uc801 \uace0\uc7a5\uc5d0 \ub300\ube44\ud55c \uc218\ub3d9\uc801 \uc548\uc804\uc131\uc785\ub2c8\ub2e4. \uc774\ub294 \uc7a5\ube44\uc640 \uc2dc\uc124\uc758 \ubb34\uacb0\uc131\uc744 \uc911\uc2dc\ud569\ub2c8\ub2e4. \uadf8\ub7fc\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, \uc774\ub7ec\ud55c \uc548\uc804 \ubc29\uc2dd\uc5d0\ub294 \u2018\uaca9\ub9ac \uae30\ub2a5\uc758 \ubd80\uc7ac\u2019\ub77c\ub294 \uc911\ub300\ud55c \ub2e8\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ubc38\ube0c\ub97c \ud1b5\uacfc\ud558\ub294 \uc720\uccb4\uac00 \uace0\uac00\uc774\uac70\ub098 \uc720\ub3c5\uc131, \uc778\ud654\uc131\uc774 \uc788\ub294 \uacbd\uc6b0, \u2018\uc2e4\ud328 \uc2dc \uac1c\ubc29(Fail Open)\u2019 \ubc29\uc2dd\uc758 \ubc38\ube0c\ub294 \uc791\uc5c5\uc790\uac00 \uc218\ub3d9 \ucc28\ub2e8 \ubc38\ube0c\ub97c \uc9c1\uc811 \ub2eb\uc744 \ub54c\uae4c\uc9c0 \ud574\ub2f9 \uc720\uccb4\ub97c \ud558\ub958 \uacf5\uc815\uc774\ub098 \uc678\ubd80 \ud658\uacbd\uc73c\ub85c \ubc30\ucd9c\ud558\uac8c \ub429\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uc790\uc7ac \ub0ad\ube44\ub098 \ud658\uacbd \uc815\ud654 \ube44\uc6a9\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\u2018\uc2e4\ud328 \uc2dc \ud3d0\uc1c4 \ubc38\ube0c(\uacf5\uae30 \uacf5\uae09 \uc2dc \uac1c\ubc29)\u2019\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n<p>\ubc18\uba74, \u2018Fail Closed(FC)\u2019 \ubc38\ube0c(\u2018Air-to-Open(ATO)\u2019\ub77c\uace0\ub3c4 \ud568)\ub294 \uae30\ubcf8 \uc0c1\ud0dc\uac00 \uc644\uc804\ud788 \ubc00\ubd09\ub41c \uc0c1\ud0dc\ub85c, \ubc18\ub300 \uc6d0\ub9ac\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uad6c\uc870\uc5d0\uc11c\ub294 \ub0b4\ubd80 \uc2a4\ud504\ub9c1\uc774 \ubc38\ube0c \uc2dc\ud2b8\uc5d0 \uc77c\uc815\ud55c \ud798\uc744 \uac00\ud558\uc5ec \ubc38\ube0c\ub97c \ub2eb\ud78c \uc0c1\ud0dc\ub85c \uc720\uc9c0\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. 'Air-to-Open'\uc774\ub77c\ub294 \uba85\uce6d\uc740 \ub9d0 \uadf8\ub300\ub85c \uc774 \uc124\uacc4 \ubc29\uc2dd\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4. \uc989, \uc555\ucd95 \uacf5\uae30\ub294 \uc2a4\ud504\ub9c1\uc758 \ud798\uc5d0 \ub300\ud56d\ud558\uc5ec \ubc38\ube0c\ub97c \uac15\uc81c\ub85c \uc5f4\uae30 \uc704\ud574\uc11c\ub9cc \ud544\uc694\ud569\ub2c8\ub2e4. \uacf5\uae30 \uacf5\uae09\uc774 \ucc28\ub2e8\ub418\uba74 \ubc38\ube0c\ub97c \uc5f4\uc5b4\ub450\ub294 \ub370 \ud544\uc694\ud55c \uc5d0\ub108\uc9c0\uac00 \uc0ac\ub77c\uc9c0\uace0, \uc2a4\ud504\ub9c1\uc5d0 \uc800\uc7a5\ub41c \uae30\uacc4\uc801 \uc5d0\ub108\uc9c0\ub85c \uc778\ud574 \ubc38\ube0c\uac00 \ub2eb\ud78c \uc704\uce58\ub85c \ub418\ub3cc\uc544\uc640 \uc989\uc2dc \ubc00\ubd09\uc774 \uc774\ub8e8\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n<p>\ucc28\ub2e8 \uae30\ub2a5\uc740 \u2018\uc2e4\ud328 \uc2dc \ud3d0\uc1c4(Fail Closed)\u2019 \ubc38\ube0c\uc758 \uae30\ubcf8 \ubaa9\uc801\uc785\ub2c8\ub2e4. \uc774\ub294 \uc81c\uc5b4 \uae30\ub2a5\uc774 \uc0c1\uc2e4\ub418\uc5c8\uc744 \ub54c \uc704\ud5d8 \uc694\uc18c\ub97c \uaca9\ub9ac\ud558\uae30 \uc704\ud55c \uac83\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc774\ub294 \uc704\ud5d8 \ubb3c\uc9c8, \uc5f0\ub8cc \uacf5\uae09 \ubc0f \uc720\ub3c5\uc131 \ud654\ud559 \ubb3c\uc9c8 \uacf5\uae09\uc744 \ub2e4\ub8e8\ub294 \ub370 \uc788\uc5b4 \ud45c\uc900 \uc0ac\uc591\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ubc84\ub108 \uad00\ub9ac \uc2dc\uc2a4\ud15c\uc5d0 \uc124\uce58\ub41c FC \ubc38\ube0c\ub294 \ud654\uc5fc \uc81c\uc5b4\uae30\uac00 \uace0\uc7a5 \ub0a0 \uacbd\uc6b0 \uc5f0\ub8cc \uacf5\uae09\uc774 \uc989\uc2dc \ucc28\ub2e8\ub418\ub3c4\ub85d \ud558\uc5ec, \ubbf8\uc5f0\uc18c \uac00\uc2a4\uac00 \ud654\uc2e4\uc5d0 \ucc28\uc624\ub974\ub294 \uac83\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4. \ud654\ud559 \ubb3c\uc9c8 \uc8fc\uc785 \ub77c\uc778\uc5d0\uc11c\ub294 \ud38c\ud504\uac00 \uc815\uc9c0\ub418\uc5c8\uc744 \ub54c \uc704\ud5d8\ud55c \ubc18\uc751\ubb3c\uc774 \ud0f1\ud06c\uc5d0 \ub118\uccd0\ud750\ub974\ub294 \uac83\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n<p>\u2018\ud398\uc77c \ud074\ub85c\uc988\ub4dc(Fail Closed)\u2019 \uc124\uacc4\uc758 \uc8fc\uc694 \uc7a5\uc810\uc740 \uc989\uc2dc \ucc28\ub2e8\ub418\uc5b4 \uc720\ucd9c, \uc720\ub3c5 \ubb3c\uc9c8 \ub204\ucd9c \ubc0f \ud654\uc7ac \uc704\ud5d8\uc744 \uc904\uc77c \uc218 \uc788\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \uc774\ub294 \uacf5\uc815 \ub77c\uc778\uc744 \uc548\uc804\ud558\uac8c \ubd09\uc1c4\ud558\ub294 \uc88b\uc740 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2e8\uc810\uc73c\ub85c\ub294 \uc5f4\uc801 \ub610\ub294 \uc555\ub825\uc801 \uc704\ud5d8\uc744 \ucd08\ub798\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. \u2018Fail Closed\u2019 \ubc38\ube0c\uac00 \ub0c9\uac01\uc218 \ub77c\uc778\uacfc \uac19\uc774 \ubd80\uc801\uc808\ud55c \uc704\uce58\uc5d0 \uc124\uce58\ub420 \uacbd\uc6b0, \ube44\uc0c1 \uc2dc \uc720\uc77c\ud55c \ub0c9\uac01\uc6d0\uc744 \ucc28\ub2e8\ud558\uc5ec \uc7a5\ube44\uc758 \uacfc\uc5f4\uc774\ub098 \uc6a9\uae30 \ub0b4 \uc704\ud5d8\ud55c \uc555\ub825 \uc0c1\uc2b9\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uc6d0\ub9ac: \uc561\ucd94\uc5d0\uc774\ud130\uac00 \uc5b4\ub5bb\uac8c \ud398\uc77c\uc138\uc774\ud504 \ub3d9\uc791\uc744 \uad6c\ub3d9\ud558\ub294\uac00<\/h2>\n<p>\ubc38\ube0c\uac00 \uc5b4\ub5bb\uac8c \uc548\uc804\uc744 \uc790\ub3d9\ud654\ud558\ub294\uc9c0 \uc774\ud574\ud558\ub824\uba74, \uc800\uc7a5\ub41c \uc7a0\uc7ac \uc5d0\ub108\uc9c0\uc758 \uac1c\ub150\ub9cc \uc54c\uba74 \ub429\ub2c8\ub2e4. \uc2a4\ud504\ub9c1 \ub9ac\ud134(\ub2e8\ub3d9\uc2dd) \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uc774\ub7ec\ud55c \uc2dc\uc2a4\ud15c\uc758 \uc5c5\uacc4 \ud45c\uc900\uc785\ub2c8\ub2e4.<\/p>\n<p>\ud398\uc77c\uc138\uc774\ud504 \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uc591\ubc29\ud5a5\uc73c\ub85c \uc6c0\uc9c1\uc774\uae30 \uc704\ud574 \uacf5\uae30\uac00 \ud544\uc694\ud55c \ud45c\uc900 \uc561\ucd94\uc5d0\uc774\ud130\uc640 \ub2ec\ub9ac, \uc77c\ub828\uc758 \uace0\uac15\ub3c4 \uc0b0\uc5c5\uc6a9 \uc2a4\ud504\ub9c1\uc744 \uac16\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \u2018\uc555\ucd95 \uacf5\uae30\u2019\uc640 \u2018\uc2a4\ud504\ub9c1\u2019\uc774\ub77c\ub294 \ub450 \ud798 \uc0ac\uc774\uc758 \ub05d\uc5c6\ub294 \ubb3c\ub9ac\uc801 \ud22c\uc7c1\uc785\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\uc815\uc0c1 \uc791\ub3d9 (\uc548\uc804 \uc7a5\uce58 \uc7a5\uc804):<\/strong> \uc2dc\uc2a4\ud15c\uc774 \uc791\ub3d9 \uc911\uc77c \ub54c \uc561\ucd94\uc5d0\uc774\ud130\ub85c \uc555\ucd95 \uacf5\uae30\uac00 \uc720\uc785\ub429\ub2c8\ub2e4. \uc774 \uacf5\uae30\uc758 \uc555\ub825\uc740 \ub0b4\ubd80 \ud53c\uc2a4\ud1a4\uc744 \ubc00\uc5b4\ub0b4\uc5b4 \uc2a4\ud504\ub9c1\uc744 \ubcbd\uba74\uc5d0 \ubb3c\ub9ac\uc801\uc73c\ub85c \uc555\ucc29\uc2dc\ud0a4\uae30\uc5d0 \ucda9\ubd84\ud55c \uace0\uc555\uc785\ub2c8\ub2e4. \uacf5\uae30 \uc555\ub825\uc774 \uc720\uc9c0\ub418\uace0 \ubc38\ube0c\uac00 \uc791\ub3d9 \uc704\uce58(\uc608: \uc644\uc804\ud788 \uc5f4\ub9b0 \uc0c1\ud0dc)\uc5d0 \uba38\ubb34\ub974\ub294 \ud55c \uc2a4\ud504\ub9c1\uc740 \ub20c\ub9b0 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ube44\uc0c1 \uc870\uce58 (\uc548\uc804 \uc7a5\uce58 \ud574\uc81c):<\/strong> \uacf5\uae30 \uacf5\uae09\uc774 \ucc28\ub2e8\ub418\uba74(\uc815\uc804\uc774\ub098 \ubc30\uad00 \ud30c\uc190\uc73c\ub85c \uc778\ud574), \uc2a4\ud504\ub9c1\uc744 \ub4a4\ub85c \uc7a1\uc544\ub2f9\uae30\ub358 \ud798\uc774 \uc0ac\ub77c\uc9d1\ub2c8\ub2e4. \uadf8\ub7ec\uba74 \uc2a4\ud504\ub9c1\uc740 \uc989\uc2dc \uc6d0\ub798 \ud06c\uae30\ub85c \ud33d\ucc3d\ud569\ub2c8\ub2e4. \uc774 \ud33d\ucc3d \uacfc\uc815\uc5d0\uc11c \uc5c4\uccad\ub09c \uae30\uacc4\uc801 \uc5d0\ub108\uc9c0\uac00 \ubc29\ucd9c\ub418\uc5b4 \ud53c\uc2a4\ud1a4\uc744 \ucd08\uae30 \uc704\uce58\ub85c \ubc00\uc5b4\ub0b4\uace0, \ubc38\ube0c\ub97c \uc548\uc804 \uc704\uce58(\ub2eb\ud798 \ub610\ub294 \uc5f4\ub9bc)\ub85c \ub2eb\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774\uac83\uc774 \uc65c \uc2e0\ub8b0\ud560 \uc218 \uc788\uc744\uae4c\uc694? \uc13c\uc11c\ub098 \uc804\uae30, \ub610\ub294 \uc0ac\ub78c\uc758 \uac1c\uc785\uc5d0 \uc758\uc874\ud558\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc774\ub294 \ubb3c\ub9ac\ud559\uc758 \uae30\ubcf8 \ubc95\uce59\uc5d0 \uae30\ubc18\uc744 \ub450\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud504\ub9c1\uc740 \uc874\uc7ac\ud558\ub294 \ud55c \ud56d\uc0c1 \ud33d\ucc3d\ud558\ub824\uace0 \ud558\ubbc0\ub85c, \ubc38\ube0c\ub294 \ud56d\uc0c1 \uc548\uc804 \ubaa8\ub4dc\ub85c \uc720\uc9c0\ub429\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-24129\" src=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close2-300x225.webp\" alt=\"\u2018fail open\u2019 \ub300 \u2018fail close\u2019\" width=\"512\" height=\"384\" srcset=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close2-300x225.webp 300w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close2-768x576.webp 768w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close2-600x450.webp 600w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close2.webp 1024w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/p>\n<h2 data-pm-slice=\"1 1 []\">\u2018\uc2e4\ud328\uac00 \ucd5c\uc120(FL)\u2019\uc778 \uacbd\uc6b0<\/h2>\n<p>\u201c\uc5f4\ub9bc(Open)\u201d \ub610\ub294 \u2018\ub2eb\ud798(Closed)\u2019\uc774\ub77c\ub294 \uc774\ubd84\ubc95\uc801 \uacb0\uc815 \uc678\uc5d0\ub3c4, \u2018Fail Last(FL)\u2019\ub77c\uace0 \ud558\ub294 \uc138 \ubc88\uc9f8 \uc804\ub7b5\uc801 \uc635\uc158\uc774 \uc874\uc7ac\ud558\uba70, \uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \u2018Fail in Place\u2019\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubc29\uc2dd\uc740 \uc800\uc7a5\ub41c \uc5d0\ub108\uc9c0\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubc38\ube0c\ub97c \uc0c8\ub85c\uc6b4 \uc704\uce58\ub85c \uae09\uaca9\ud788 \uc774\ub3d9\uc2dc\ud0a4\ub294 \ub300\uc2e0, \uc804\uc6d0\uc774\ub098 \uacf5\uae30\uac00 \ucc28\ub2e8\ub41c \uc21c\uac04\uc758 \uc815\ud655\ud55c \uc704\uce58 \uadf8\ub300\ub85c \ubc38\ube0c\uac00 \uc720\uc9c0\ub418\ub3c4\ub85d \uc9c0\uc2dc\ud569\ub2c8\ub2e4. \uc774\ub294 \ubcf5\ub3d9\uc2dd \uc561\ucd94\uc5d0\uc774\ud130\uc640 \ud2b9\uc218\ud55c \uc5d0\uc5b4 \ub77d \ubc38\ube0c\ub97c \uacb0\ud569\ud558\uc5ec \uae30\uacc4\uc801\uc73c\ub85c \uad6c\ud604\ub429\ub2c8\ub2e4. \uc774 \uc7a5\uce58\ub294 \uacf5\uae09 \uc555\ub825\uc774 \uac10\uc18c\ud55c \uac83\uc744 \uac10\uc9c0\ud558\uba74 \uc989\uc2dc \ubc30\uae30 \ud3ec\ud2b8\ub97c \ub2eb\uc544, \ub0a8\uc544 \uc788\ub294 \uc555\ucd95 \uacf5\uae30\ub97c \uc561\ucd94\uc5d0\uc774\ud130 \uc2e4\ub9b0\ub354 \ub0b4\uc5d0 \uac00\ub450\uc5b4 \ud53c\uc2a4\ud1a4\uc744 \uc720\uc555\uc801\uc73c\ub85c \uc81c \uc704\uce58\uc5d0 \uace0\uc815\uc2dc\ud0b5\ub2c8\ub2e4. \uc774 \ubaa8\ub4dc\ub294 \uc2dc\uc2a4\ud15c \uc1fc\ud06c \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud55c \uac83\uc785\ub2c8\ub2e4. \ub300\uad6c\uacbd \uc561\uccb4 \ud30c\uc774\ud504\ub77c\uc778(\uc77c\ubc18\uc801\uc73c\ub85c 20\uc778\uce58 \uc774\uc0c1)\uc5d0\uc11c \uc2a4\ud504\ub9c1 \ubcf5\uadc0 \ubc38\ube0c\uac00 \uac11\uc791\uc2a4\ub7fd\uac8c \ub2eb\ud788\uba74 \uaca9\ub82c\ud55c \u201c\uc6cc\ud130 \ud574\uba38\u201d \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\uc5ec \ud30c\uc774\ud504\uac00 \ub9d0 \uadf8\ub300\ub85c \ucc22\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c, \ubbfc\uac10\ud55c \ud654\ud559 \ubb3c\uc9c8 \ud63c\ud569 \uacf5\uc815\uc5d0\uc11c \ubc38\ube0c\uac00 \uc644\uc804\ud788 \uc5f4\ub9ac\uac70\ub098 \ub2eb\ud788\uba74 \uc5f4\uc801 \ud3c9\ud615\uc774 \uae68\uc9c0\uac70\ub098 \ubc30\uce58\uc758 \ud654\ud559\ub7c9\ub860\uc801 \ube44\uc728\uc774 \ud6fc\uc190\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub530\ub77c\uc11c \u2018Fail Last\u2019\uc758 \uc8fc\uc694 \uc5ed\ud560\uc740 \uaca9\ub9ac\ubcf4\ub2e4 \uc548\uc815\uc131\uc744 \ub354 \uc911\uc2dc\ud558\ub294 \ub370 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc720\ub7c9\uc744 \uc77c\uc815\ud558\uac8c \uc720\uc9c0\ud568\uc73c\ub85c\uc368 \uc778\ud504\ub77c\uc5d0 \ub300\ud55c \uc989\uac01\uc801\uc778 \ubb3c\ub9ac\uc801 \uc190\uc0c1\uacfc \uacf5\uc815\uc5d0 \ub300\ud55c \uc5f4\ucda9\uaca9\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc548\uc815\uc131 \ub355\ubd84\uc5d0 \uc6b4\uc601\uc790\ub294 \ube44\uc0c1 \uc2dc \uac1c\uc785\ud558\uc5ec \ud1b5\uc81c\ub41c \uc218\ub3d9 \uc815\uc9c0 \uc808\ucc28\ub97c \uc218\ud589\ud568\uc73c\ub85c\uc368 \uc804\ud658 \uacfc\uc815\uc744 \uc6d0\ud65c\ud558\uac8c \uc9c4\ud589\ud560 \uc2dc\uac04\uc744 \ud655\ubcf4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7fc\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \uc774 \ubaa8\ub4dc\uc758 \ub2e8\uc810\uc744 \ucda9\ubd84\ud788 \uc778\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \uc7a5\uae30\uc801\uc778 \ud574\uacb0\ucc45\uc774 \uc544\ub2c8\ub77c \uc77c\uc2dc\uc801\uc778 \uc870\uce58\uc77c \ubfd0\uc785\ub2c8\ub2e4. \uacf5\uae30 \ubc00\ubd09 \ubc29\uc2dd\uc740 \uae30\uacc4\uc2dd \uc2a4\ud504\ub9c1\uc5d0 \ube44\ud574 \uc644\ubcbd\ud558\uc9c0 \uc54a\uc544, \uba87 \uc2dc\uac04\uc774 \uc9c0\ub098\uba74 \uacf5\uae30\uac00 \ub204\ucd9c\ub418\uc5b4 \ubc38\ube0c\uac00 \uc124\uc815\ub41c \uc704\uce58\uc5d0 \uace0\uc815\ub418\uc9c0 \uc54a\uac8c \ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc774\ub294 \uc0ac\ub78c\uc774 \uac1c\uc785\ud574\uc57c \ud558\ub294 \uc870\uce58 \uc218\ub2e8\uc77c \ubfd0, \uc7a5\uae30\uac04 \ubc29\uce58\ud574\ub3c4 \uc548\uc804\ud55c \uc548\uc804 \ub300\ucc45\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<h2>\ubb38\uc81c \ud574\uacb0 \ubc0f \uc7a0\uc7ac\uc801 \uc704\ud5d8<\/h2>\n<p>\uc544\ubb34\ub9ac \uac15\ub825\ud55c \uc548\uc804 \uc7a5\uce58\ub77c\ub3c4 \uc720\uc9c0\ubcf4\uc218\ub9cc\ud07c \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uac83\uc740 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc38\ube0c\ub4e4\uc740 \ubcf4\ud1b5 \uba87 \ub2ec \ub3d9\uc548 \uac00\ub3d9\uc744 \uba48\ucd94\uace0, \ubc14\ub77c\uac74\ub300 \uacb0\ucf54 \ubc1c\uc0dd\ud558\uc9c0 \uc54a\uae30\ub97c \ubc14\ub77c\ub294 \ube44\uc0c1 \uc0c1\ud669\uc774 \ub2e5\uce60 \ub54c\uae4c\uc9c0 \ub300\uae30\ud558\uace0 \uc788\uae30 \ub54c\ubb38\uc5d0, \ud2b9\uc815 \uc720\ud615\uc758 \ub208\uc5d0 \ub744\uc9c0 \uc54a\ub294 \uace0\uc7a5\uc5d0 \ucde8\uc57d\ud569\ub2c8\ub2e4. \uc2dc\uc2a4\ud15c\uc774 \uac00\uc7a5 \uc808\uc2e4\ud788 \ud544\uc694\ud560 \ub54c \uc81c\ub300\ub85c \uc791\ub3d9\ud560 \uc218 \uc788\ub3c4\ub85d, \uc774\ub7ec\ud55c \ucde8\uc57d\uc810\uc744 \ud30c\uc545\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\uc815\ub9c8\ucc30(\u201c\uc2a4\ud2f0\uc158\u201d):<\/strong> \uc811\ucc29 \ub9c8\ucc30\uc740 \uc548\uc804 \ubc38\ube0c\uc758 \uac00\uc7a5 \ud070 \uc801\uc785\ub2c8\ub2e4. \ubc38\ube0c\uac00 \uc7a5\uae30\uac04 \uc815\uc9c0 \uc0c1\ud0dc\uc5d0 \uc788\uc744 \uacbd\uc6b0, \uace0\ubb34 \uc530\uc774 \uae08\uc18d \ubcf8\uccb4\uc5d0 \ubb3c\ub9ac\uc801\uc73c\ub85c \ub2ec\ub77c\ubd99\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub9c8\ucc30\uc774 \ub204\uc801\ub418\uc5b4 \uc2a4\ud504\ub9c1\uc758 \ud798\uc744 \ub2a5\uac00\ud558\ub294 \uc218\uc900\uc5d0 \uc774\ub974\uba74, \ube44\uc0c1 \uc0c1\ud669 \ubc1c\uc0dd \uc2dc \ubc38\ube0c\uac00 \uc81c\uc790\ub9ac\uc5d0 \uac78\ub824\ub9cc \uc788\uc744 \ubfd0 \uc704\ud5d8\uc744 \ucc28\ub2e8\ud558\uc9c0 \ubabb\ud558\uac8c \ub429\ub2c8\ub2e4. \uac00\uc7a5 \ud6a8\uacfc\uc801\uc778 \uc608\ubc29\ucc45\uc740 \uc815\uae30\uc801\uc778 \ubd80\ubd84 \uc2a4\ud2b8\ub85c\ud06c \ud14c\uc2a4\ud2b8\ub97c \uc2e4\uc2dc\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc2e4\uc81c \uacf5\uc815 \uc6b4\uc601\uc5d0 \uc9c0\uc7a5\uc744 \uc8fc\uc9c0 \uc54a\uc73c\uba74\uc11c \ubc38\ube0c\ub97c \uc57d\uac04 \uc6c0\uc9c1\uc5ec \uc774\ub7ec\ud55c \ub9c8\ucc30\uc5d0 \uc758\ud55c \uc811\ucc29\uc744 \uc644\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\ubd04\ucca0 \ud53c\ub85c:<\/strong> \ubb3c\ub9ac\uc801 \uad6c\uc131\ud488\uc740 \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \ub9c8\ubaa8\ub418\uba70, \uc989 \uc2a4\ud504\ub9c1 \ud53c\ub85c\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc2a4\ud504\ub9c1\uc740 \uc218\ub144\uac04\uc758 \uc555\ucd95 \uc0ac\uc774\ud074\uc744 \uac70\uce58\uba74 \ub192\uc740 \ubc30\uad00 \uc555\ub825\uc5d0 \ub9de\uc11c \ubc38\ube0c\ub97c \uc644\uc804\ud788 \ub2eb\ub294 \ub370 \ud544\uc694\ud55c \uc7a5\ub825\uc744 \uc783\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \u2018\ub2eb\ud78c \uc0c1\ud0dc\uc5d0\uc11c\uc758 \ub204\ucd9c(leakage-through-closed)\u2019 \uc704\ud5d8\uc774 \ubc1c\uc0dd\ud558\ub294\ub370, \uc774\ub294 \ubc38\ube0c\uac00 \ub2eb\ud78c \uac83\ucc98\ub7fc \ubcf4\uc774\uc9c0\ub9cc \uc2e4\uc81c\ub85c\ub294 \uc704\ud5d8\ud55c \uc720\uccb4\uac00 \ub204\ucd9c\ub418\uace0 \uc788\ub294 \uc0c1\ud0dc\ub97c \ub9d0\ud569\ub2c8\ub2e4. \uc774\ub97c \ubc29\uc9c0\ud558\uae30 \uc704\ud574, \uc6b4\uc601\uc790\ub294 \uc5f0\ub840 \uc815\ube44 \uae30\uac04 \ub3d9\uc548 \uc561\ucd94\uc5d0\uc774\ud130\uc758 \ud1a0\ud06c \ucd9c\ub825\uc744 \uc810\uac80\ud574\uc57c \ud558\uba70, \uc57d\ud574\uc9c4 \uc9d5\ud6c4\uac00 \ubcf4\uc774\ub294 \uc2a4\ud504\ub9c1 \uce74\ud2b8\ub9ac\uc9c0\ub294 \uad50\uccb4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ubc30\uae30 \ud1b5\ud48d\uad6c \ub9c9\ud798:<\/strong> \ub9c8\uc9c0\ub9c9\uc73c\ub85c, \ubc30\uae30 \ud1b5\ud48d\uad6c\uac00 \ub9c9\ud788\uba74 \ube44\uc0c1 \uc548\uc804 \uc7a5\uce58\uac00 \uc791\ub3d9\ud558\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud504\ub9c1\uc774 \ub298\uc5b4\ub098 \ubc38\ube0c\ub97c \ub2eb\uc744 \uc218 \uc788\ub3c4\ub85d \ud558\ub824\uba74, \ucc54\ubc84 \ub0b4\uc758 \uacf5\uae30\ub97c \uac00\ub2a5\ud55c \ud55c \ube68\ub9ac \ubc30\ucd9c\ud574\uc57c \ud569\ub2c8\ub2e4. \ubc30\uae30\uad6c\uac00 \uc5bc\uc74c(\uc2b5\ud55c \uacf5\uae30), \uba3c\uc9c0, \uc2ec\uc9c0\uc5b4 \uace4\ucda9\uc758 \ub465\uc9c0\ub85c \ub9c9\ud788\uba74 \uacf5\uae30\uac00 \uac07\ud600 \uc720\uc555 \uc7a0\uae40 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\uba70, \uc774\ub85c \uc778\ud574 \ubc38\ube0c\uac00 \uc6c0\uc9c1\uc774\uc9c0 \ubabb\ud558\uac8c \ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uace0\uc7a5 \uc591\uc0c1\uc740 \ub300\uac1c \uac04\uacfc\ub418\uace4 \ud558\uc9c0\ub9cc, \uacc4\uae30\uc6a9 \uacf5\uae30 \uacf5\uae09\uc774 \uae68\ub057\ud558\uace0 \uac74\uc870\ud558\ub3c4\ub85d \ud558\uace0 \ubc30\uae30\uad6c\uc5d0 \uac04\ub2e8\ud55c \ud1b5\uae30\uad6c\ub97c \uc124\uce58\ud568\uc73c\ub85c\uc368 \ud6a8\uacfc\uc801\uc73c\ub85c \ubc29\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\ud398\uc77c\uc138\uc774\ud504 \ub85c\uc9c1\uc5d0\uc11c \uc81c\uc870 \ud488\uc9c8\uc774 \uc911\uc694\ud55c \uc774\uc720<\/h2>\n<p>\u2018Fail Closed\u2019\ub97c \uc9c0\uc815\ud558\ub294 \uacf5\ud559\uc801 \uc120\ud0dd\uc740 \ud604\uc2e4\uc5d0\uc11c \ubb3c\ub9ac\uc801\uc73c\ub85c \uac80\uc99d\ub418\uae30 \uc804\uae4c\uc9c0\ub294 \ub2e8\uc9c0 \uc774\ub860\uc801\uc778 \uc120\ud0dd\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4. \uc800\uac00\ud615 \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uace0\ud488\uc9c8 \uc81c\ud488\uacfc \ub3d9\uc77c\ud55c \ud1a0\ud06c \uac12\uacfc \uc548\uc804 \ub4f1\uae09\uc744 \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0 \uba85\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc774\ub294 \ubd80\ud558\uac00 \uac00\ud574\uc9c0\uba74 \ub4dc\ub7ec\ub098\ub294 \ud5c8\uc0c1\uc77c \ubfd0\uc785\ub2c8\ub2e4. \ud398\uc77c \uc138\uc774\ud504(fail-safe) \ub17c\ub9ac\uc758 \ub9e5\ub77d\uc5d0\uc11c \uc81c\uc870 \ud488\uc9c8\uc740 \uc0ac\uce58\uc2a4\ub7ec\uc6b4 \uc694\uc18c\uac00 \uc544\ub2c8\ub77c, \uc548\uc804 \uc870\uce58\uac00 \uc2e4\uc81c\ub85c \ud6a8\uacfc\uc801\uc778\uc9c0 \uc544\ub2c8\uba74 \ub2e8\uc9c0 \uc885\uc774 \uc704\uc758 \uae00\uc790\uc5d0 \ubd88\uacfc\ud55c\uc9c0\ub97c \uacb0\uc815\ud558\ub294 \uad6c\uc870\uc801 \ud1a0\ub300\uc785\ub2c8\ub2e4.<\/p>\n<p>\ud488\uc9c8\uc774 \ub0ae\uc740 \uc81c\ud488\uc774 \ucd08\ub798\ud558\ub294 \uc2e4\uc81c \uc704\ud611\uc740 \uc548\uc804\uc5d0 \ub300\ud55c \uc798\ubabb\ub41c \uc778\uc0c1\uc744 \uc2ec\uc5b4\uc900\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \uc548\uc804 \uc7a5\uce58 \uc791\ub3d9\uc758 \ud575\uc2ec\uc778 \uc2a4\ud504\ub9c1\uc758 \uae08\uc18d\ud559\uc801 \ud2b9\uc131\uc744 \uace0\ub824\ud574 \ubcf4\uc2ed\uc2dc\uc624. \ud488\uc9c8\uc774 \ub0ae\uc740 \uc2a4\ud504\ub9c1\uc740 \uc751\ub825 \uc644\ud654 \ubb38\uc81c\ub97c \uc548\uace0 \uc788\ub294\ub370, \uc774\ub294 \uac15\ucca0\uc774 \uc218\ub144 \ub3d9\uc548 \uc555\ucd95\ub41c \uc0c1\ud0dc\ub85c \ubc29\uce58\ub420 \uacbd\uc6b0 \uadf8 \u2018\uae30\uc5b5\u2019\uc744 \uc783\uc5b4\ubc84\ub9ac\ub294 \ubb3c\ub9ac\uc801 \ud604\uc0c1\uc785\ub2c8\ub2e4. \ud53c\ub85c\uac00 \ub204\uc801\ub41c \uc2a4\ud504\ub9c1\uc740 \ube44\uc0c1 \uc0c1\ud669\uc774 \ubc1c\uc0dd\ud588\uc744 \ub54c \ubc38\ube0c\ub97c \uc791\ub3d9\uc2dc\ud0ac \ub9cc\ud07c\uc758 \uac15\ub3c4\ub294 \uac16\ucd9c \uc218 \uc788\uc9c0\ub9cc, \ub192\uc740 \ub77c\uc778 \uc555\ub825\uc5d0 \ub9de\uc11c \ubc38\ube0c\ub97c \uc644\uc804\ud788 \ub2eb\uc744 \ub9cc\ud07c\uc758 \uac15\ub3c4\ub294 \ubd80\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac8c\ub2e4\uac00 \u2018\uc720\ub839 \uace0\uc7a5\u2019\uc744 \ubc29\uc9c0\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \ubc29\ubc95\uc740 \uc815\ubc00\ud55c \ub0b4\ubd80 \uac00\uacf5\uc785\ub2c8\ub2e4. \uc2e4\ub9b0\ub354 \ub0b4\ubcbd\uc774 \uac70\uce60\uac70\ub098 \ubc94\uc6a9 \uc530\uc744 \uc0ac\uc6a9\ud560 \uacbd\uc6b0, \uc555\ucd95 \uacf5\uae30\uac00 \ud53c\uc2a4\ud1a4 \uc8fc\ubcc0\uc73c\ub85c \uc0c8\uc5b4 \ub4e4\uc5b4\uac00 \uc2a4\ud504\ub9c1\uc744 \ubc00\uc5b4\ub0b4\uc5b4, \uac00\uc7a5 \ud544\uc694\ud55c \uc21c\uac04\uc5d0 \uc561\ucd94\uc5d0\uc774\ud130\uc758 \ub3d9\ub825\uc774 \uc57d\ud574\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uacb0\uad6d, \uc548\uc804 \ubc38\ube0c\ub294 \uadf8\uac83\uc774 \ub9c9\uc544\ub0b4\ub294 \uc7ac\uc559\uc5d0 \ube44\ud558\uba74 \ube44\uc6a9\uc774 \uc800\ub834\ud569\ub2c8\ub2e4. \ub610\ud55c \uc591\uc9c8\uc758 \uc81c\uc870 \uacf5\uc815\uc744 \ud1b5\ud574 \uc561\ucd94\uc5d0\uc774\ud130\uc758 \ud1a0\ud06c \ucd9c\ub825\uc774 \uc77c\uc815\ud558\uac8c \uc720\uc9c0\ub418\uace0, \uc2a4\ud504\ub9c1\uc774 \ud615\uc0c1 \uae30\uc5b5 \uae30\ub2a5\uc744 \ubc1c\ud718\ud558\uba70, \ubc38\ube0c \ubcf8\uccb4\uac00 \uace0\ucc29 \ud604\uc0c1 \uc5c6\uc774 \ud658\uacbd\uc801 \uc2a4\ud2b8\ub808\uc2a4 \uc694\uc778\uc5d0 \uacac\ub51c \uc218 \uc788\ub3c4\ub85d \ubcf4\uc7a5\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uae30\uc220 \uc0ac\uc591\uc744 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \ud604\uc2e4\ub85c \uad6c\ud604\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc548\uc804\uc744 \ucd5c\uc6b0\uc120\uc73c\ub85c \uc5ec\uae30\ub294 \uc81c\uc870 \ud30c\ud2b8\ub108\ub97c \ucc3e\uc544\uc57c \ud558\uba70, \uc774\uac83\uc774 \ubc14\ub85c VINCER\uc758 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ucca0\ud559\uc758 \ud575\uc2ec\uc785\ub2c8\ub2e4.<\/p>\n<h2 data-pm-slice=\"1 3 []\">\uacb0\uc815 \ub0b4\ub9ac\ub294 \ubc29\ubc95: 3\ub2e8\uacc4 \uc548\uc804 \uc810\uac80<\/h2>\n<p>\uc801\uc808\ud55c \uace0\uc7a5 \ubaa8\ub4dc\ub97c \uc120\ud0dd\ud558\ub294 \uac83\uc740 \ub2e8\uc21c\ud788 \ucd94\uce21\ud558\ub294 \uc77c\uc774 \uc544\ub2c8\ub77c \uc704\ud5d8 \ud3c9\uac00\uc785\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \uc62c\ubc14\ub978 \uc0ac\uc591\uc744 \ub3c4\ucd9c\ud558\uae30 \uc704\ud574 \uacc4\uce35\uc801\uc778 \u20183\ub2e8\uacc4 \uc548\uc804 \ud14c\uc2a4\ud2b8\u2019\ub97c \ud65c\uc6a9\ud560 \uac83\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4. \uc774 \ud569\ub9ac\uc801\uc778 \ubaa8\ub378\uc740 \uacb0\uacfc\ub97c \uac00\uc7a5 \uce58\uba85\uc801\uc778 \uacb0\uacfc\uc778 \u2018\uc778\uba85 \uc190\uc2e4\u2019\ubd80\ud130 \uac00\uc7a5 \uc911\uc694\ub3c4\uac00 \ub0ae\uc740 \uacb0\uacfc\uc778 \u2018\uacbd\uc81c\uc801 \ubd88\ud3b8\u2019\uae4c\uc9c0 \uc21c\uc704\ub97c \ub9e4\uae41\ub2c8\ub2e4.<\/p>\n<p>\ubc38\ube0c\ub97c \uc815\uc758\ud560 \ub54c\ub294 \ub2e4\uc74c \uc138 \uac00\uc9c0 \uc704\ud5d8 \uc218\uc900\uc744 \uc774 \uc21c\uc11c\ub300\ub85c \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4. \ud574\ub2f9 \uc218\uc900\uc5d0 \ub300\ud55c \uc694\uac74\uc774 \uc644\uc804\ud788 \ucda9\uc871\ub420 \ub54c\uae4c\uc9c0\ub294 \ub2e4\uc74c \uace0\ub824 \uc0ac\ud56d\uc73c\ub85c \ub118\uc5b4\uac00\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n<h3>\uc8fc\uc694 \uace0\ub824 \uc0ac\ud56d 1: \uc548\uc804 (\uc778\ub825 \ubc0f \ud658\uacbd)<\/h3>\n<p>\uc5b4\ub5a4 \uc0b0\uc5c5 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub4e0 \uc778\uac04\uc758 \uc0dd\uba85\uacfc \ud658\uacbd\uc740 \uc808\ub300\uc801\uc778 \ucd5c\uc6b0\uc120 \uc21c\uc704\uc785\ub2c8\ub2e4. \uadf8 \uc774\uc720\ub294 \uc27d\uac8c \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\ub4dc\uc6e8\uc5b4\ub294 \uad50\uccb4\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc0dd\uba85\uc740 \uadf8\ub807\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ubc38\ube0c\uc758 \uc624\uc791\ub3d9\uc774 \ubd80\uc0c1, \uc0ac\ub9dd \ub610\ub294 \uc720\ud574 \ubb3c\uc9c8 \uc720\ucd9c\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\ub294 \uacbd\uc6b0, \ube44\uc6a9\uacfc \uc0c1\uad00\uc5c6\uc774 \uc774\ub7ec\ud55c \uc548\uc804 \uce21\uba74\uc774 \uacb0\uc815\uc801\uc778 \uc694\uc18c\uac00 \ub429\ub2c8\ub2e4.<\/p>\n<p>\uc608\ub97c \ub4e4\uc5b4, \uc778\ud654\uc131\uc774 \ub9e4\uc6b0 \ub192\uc740 \uc218\uc18c \uac00\uc2a4\ub098 \uc720\ub3c5\uc131 \uc5fc\uc18c\uc758 \uc720\ub7c9\uc744 \uc870\uc808\ud558\ub294 \ubc38\ube0c\ub97c \uc0dd\uac01\ud574 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubc38\ube0c\ub294 \uacf5\ud559\uc801 \ub17c\ub9ac\uc5d0 \ub530\ub77c \u2018\uace0\uc7a5 \uc2dc \ud3d0\uc1c4(Fail Closed)\u2019 \ubc29\uc2dd\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \uc720\ucd9c \ubc29\uc9c0 \ucc28\uc6d0 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc815\uc804 \uc2dc \ubaa8\ub2c8\ud130\ub9c1 \uc2dc\uc2a4\ud15c\ub3c4 \ub300\ubd80\ubd84 \uc791\ub3d9\ud558\uc9c0 \uc54a\uac8c \ub418\ubbc0\ub85c, \ub204\ucd9c\uc774 \ubc1c\uc0dd\ud574\ub3c4 \uc774\ub97c \uac10\uc9c0\ud558\uc9c0 \ubabb\ud560 \uac00\ub2a5\uc131\uc774 \ub192\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uae30\ubcf8\uc801\uc73c\ub85c \ub2eb\ud78c \uc0c1\ud0dc\ub85c \uc124\uc815\ud568\uc73c\ub85c\uc368 \uc704\ud5d8 \uc694\uc778\uc744 \uc81c\uac70\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\uba74, \ud654\uc7ac \uc9c4\uc555 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 \ubc38\ube0c\ub294 \u2018\uace0\uc7a5 \uc2dc \uac1c\ubc29(Fail Open)\u2019\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uadf8 \uc774\uc720\ub294 \uc811\uadfc\uc131 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ud654\uc7ac\ub85c \uc778\ud574 \uc804\uae30 \ucf00\uc774\ube14\uc774 \ud0c0\ubc84\ub9ac\ub294 \uacbd\uc6b0, \ub2e8\uc21c\ud788 \uc804\uc120\uc774 \ub179\uc558\ub2e4\ub294 \uc0ac\uc2e4\ub9cc\uc73c\ub85c \ud654\uc7ac\uac00 \ud655\uc0b0\ub418\uc9c0 \uc54a\ub3c4\ub85d \uc2dc\uc2a4\ud15c\uc774 \uae30\uacc4\uc801\uc778 \ubc29\uc2dd\uc73c\ub85c \ubb3c\uc774 \ud750\ub974\ub294 \uc0c1\ud0dc\ub85c \uc804\ud658\ub418\uc5b4\uc57c \ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc8fc\uc694 \uace0\ub824 \uc0ac\ud56d 2: \uc790\uc0b0 \ubcf4\ud638 (\uc7a5\ube44)<\/h3>\n<p>\uc9c1\uc6d0\uc758 \uc548\uc804\uc774 \ud655\ubcf4\ub418\uba74, \ub2e4\uc74c \ub2e8\uacc4\ub294 \uace0\uac00\uc758 \uc778\ud504\ub77c\ub97c \ubcf4\ud638\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \uc815\uc804 \ubc1c\uc0dd \uc2dc \uae30\uacc4\uc5d0 \uac00\ud574\uc9c0\ub294 \ubb3c\ub9ac\uc801 \uc190\uc0c1\uc744 \ucd5c\uc18c\ud654\ud560 \uc218 \uc788\ub294 \uc704\uce58\ub97c \uc120\uc815\ud558\uae30 \uc704\ud55c \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p>\uac00\uc7a5 \ub300\ud45c\uc801\uc778 \uc608\ub85c\ub294 \uace0\uc628 \ud654\ud559 \ubc18\uc751\uae30\uc758 \uc7ac\ud0b7\uc5d0 \ub0c9\uac01\uc218\ub97c \uacf5\uae09\ud558\ub294 \ub0c9\uac01\uc218 \ubc30\uad00\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ubc38\ube0c\ub294 \u2018\uac1c\ubc29 \uc720\uc9c0(Fail Open)\u2019 \ubc29\uc2dd\uc73c\ub85c \uc791\ub3d9\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc120\ud0dd\uc740 \uc5f4 \uad00\uc131\uc5d0 \uae30\uc778\ud569\ub2c8\ub2e4. \uc989, \uc804\ub825 \uacf5\uae09\uc774 \uc911\ub2e8\ub418\ub354\ub77c\ub3c4 \ubc18\uc751\uae30 \ub178\uc2ec\uc740 \uadf9\ub3c4\ub85c \ub728\uac81\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ub9cc\uc57d \ubc38\ube0c\uac00 \ub2eb\ud788\uac8c \ub418\uba74, \ub0c9\uac01\uc218 \uc190\uc2e4\ub85c \uc778\ud574 \uc794\ub958 \uc5f4\uc774 \uae09\uc18d\ud788 \ucd95\uc801\ub418\uc5b4 \uc6d0\uc790\ub85c\uac00 \ub179\uc544\ub0b4\ub9ac\uac70\ub098 \uc6a9\uae30\uac00 \uc601\uad6c\uc801\uc73c\ub85c \ubcc0\ud615\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc774 \uc2dc\uc2a4\ud15c\uc740 \uc218\ubc31\ub9cc \ub2ec\ub7ec\uc5d0 \ub2ec\ud558\ub294 \uc124\ube44\ub97c \uc5f4\uc801 \ud30c\uad34\ub85c\ubd80\ud130 \ubcf4\ud638\ud558\uae30 \uc704\ud574 \ubc38\ube0c\uac00 \uc5f4\ub9ac\uc9c0 \uc54a\ub3c4\ub85d \ud568\uc73c\ub85c\uc368 \ub0c9\uac01\uc218\uc758 \uc190\uc2e4\uc744 \uac10\uc218\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc8fc\uc694 \uace0\ub824 \uc0ac\ud56d 3: \uacf5\uc815 (\uc7ac\ub8cc\uc758 \uc5f0\uc18d\uc131)<\/h3>\n<p>\ub9c8\uc9c0\ub9c9\uc73c\ub85c, \uc778\ub825\uacfc \uc7a5\ube44\uac00 \uc548\uc804\ud55c \uc0c1\ud0dc\uac00 \ub418\uba74 \uacbd\uc81c\uc801 \ud6a8\uc728\uc131\uacfc \uacf5\uc815 \uc5f0\uc18d\uc131\uc5d0 \uc911\uc810\uc744 \ub461\ub2c8\ub2e4. \uc774 \ub2e8\uacc4\uc758 \ubaa9\uc801\uc740 \uc6d0\uc790\uc7ac\uc758 \ub0ad\ube44\ub098 \uc81c\ud488 \ud55c \ubc30\uce58\uc758 \ubcc0\uc9c8\uc744 \ubc29\uc9c0\ud558\ub294 \ub370 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uace0\uac00\uc758 \ucd09\ub9e4\ub97c \ud63c\ud569 \ud0f1\ud06c\uc5d0 \uc8fc\uc785\ud558\ub294 \ubc38\ube0c\ub97c \uc0dd\uac01\ud574 \ubcf4\uc790. \uc774 \uacbd\uc6b0 \ud569\ub9ac\uc801\uc778 \uacb0\uc815\uc740 \u2018\uace0\uc7a5 \uc2dc \ub2eb\ud798(Fail Closed)\u2019 \ubc29\uc2dd\uc774\ub2e4. \uc774\ub294 \uacbd\uc81c\uc801 \uc190\uc2e4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud568\uc774\ub2e4. \uc815\uc804 \uc911\uc5d0 \uc774 \ubc38\ube0c\uac00 \ub2eb\ud788\uc9c0 \ubabb\ud558\uba74, \uace0\uac00\uc758 \ud654\ud559 \ubb3c\uc9c8 \uc804\uccb4\uac00 \ud1b5\uc81c \ubd88\uac00\ub2a5\ud55c \uc0c1\ud0dc\ub85c \ud0f1\ud06c \uc548\uc73c\ub85c \uc3df\uc544\uc838 \ub098\uc62c \uac83\uc774\uae30 \ub54c\ubb38\uc774\ub2e4. \uc774\ub294 \uace0\uac00\uc758 \uc6d0\uc790\uc7ac\ub97c \ub0ad\ube44\ud560 \ubfd0\ub9cc \uc544\ub2c8\ub77c \ubc30\uce58\uc758 \ud654\ud559\uc801 \uad6c\uc131\uc744 \ud30c\uad34\ud558\uc5ec \ucd5c\uc885 \uc81c\ud488\uc744 \ud310\ub9e4\ud560 \uc218 \uc5c6\uac8c \ub9cc\ub4e4 \uac83\uc774\ub2e4. \uc2dc\uc2a4\ud15c\uc740 \uacf5\uc815\uc744 \uc644\uc804\ud788 \uc911\ub2e8\uc2dc\ud0a4\uc9c0\ub294 \uc54a\uc9c0\ub9cc, \uc6b4\uc601\uc790\uac00 \uc804\uc6d0\uc744 \ub2e4\uc2dc \ucf1c\uae30 \uc804\uae4c\uc9c0\ub294 \uc77c\uc2dc\uc801\uc73c\ub85c \uc815\uc9c0\ud558\uc5ec, \uc7ac\uc815\uc801 \uc190\uc2e4 \uc5c6\uc774 \ubc30\uce58\ub97c \uc7ac\uac1c\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n<h3>\uacb0\uc815 \ub9e4\ud2b8\ub9ad\uc2a4 \uc694\uc57d<\/h3>\n<table>\n<colgroup>\n<col \/>\n<col \/>\n<col \/>\n<col \/><\/colgroup>\n<tbody>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>\uc6b0\uc120\uc21c\uc704 \uc218\uc900<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\"><strong>\uc911\uc810 \ubd84\uc57c<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\"><strong>\ud575\uc2ec \uc9c8\ubb38<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\"><strong>\uc77c\ubc18\uc801\uc778 \uc120\ud0dd<\/strong><\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>1 (\ucd5c\uace0)<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc548\uc804<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc798\ubabb\ub41c \uc870\uce58\uac00 \ubd80\uc0c1, \ud654\uc7ac \ub610\ub294 \uc720\ub3c5 \ubb3c\uc9c8 \uc720\ucd9c\uc744 \ucd08\ub798\ud560\uae4c\uc694?<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328: \uc885\ub8cc\ub428 (\ubcf4\ud1b5)<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>2 (\uc911\uac04)<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc7a5\ube44<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc720\uccb4 \ud750\ub984\uc744 \ucc28\ub2e8\ud558\uba74 \ud38c\ud504, \ubc30\uad00 \ub610\ub294 \ubc18\uc751\uae30\uac00 \ud30c\uc190\ub420\uae4c\uc694?<\/td>\n<td colspan=\"1\" rowspan=\"1\">(\uc77c\ubc18\uc801\uc73c\ub85c) \uace0\uc7a5 \uc2dc \uac1c\ubc29<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\"><strong>3 (\ucd5c\uc800)<\/strong><\/td>\n<td colspan=\"1\" rowspan=\"1\">\ud504\ub85c\uc138\uc2a4<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc774 \uc2e4\ud328\ub85c \uc778\ud574 \ud574\ub2f9 \uc81c\ud488 \ubc30\uce58 \uc804\uccb4\uac00 \ud3d0\uae30\ub418\uac70\ub098 \uc6d0\uc790\uc7ac\uac00 \ub0ad\ube44\ub420\uae4c\uc694?<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328: \uc885\ub8cc\ub428 (\ubcf4\ud1b5)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>FO \ub300 FC: \ub9e4\uccb4 \ubc0f \uc6a9\ub3c4\uc5d0 \ub530\ub978 \ud398\uc77c\uc138\uc774\ud504 \ubc29\uc2dd \uc120\ud0dd<\/h2>\n<p>\ud398\uc77c\uc138\uc774\ud504\uc758 \ub17c\ub9ac\ub294 \ub300\uac1c \ub9e4\uccb4\uc758 \ubb3c\ub9ac\uc801 \ud2b9\uc131\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. \ubb34\ud574\ud55c \ubb3c\uc744 \uc870\uc808\ud558\ub294 \ubc38\ube0c\ub294 \ud3ed\ubc1c\uc131 \uc218\uc18c\ub97c \uc870\uc808\ud558\ub294 \ubc38\ube0c\uc640 \ub3d9\uc77c\ud55c \uc548\uc804 \uaddc\uc815\uc744 \ub530\ub974\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<p data-pm-slice=\"1 3 []\">\ub2e4\uc74c\uc740 \uc62c\ubc14\ub978 \uc120\ud0dd \ubc29\ubc95\uc5d0 \ub300\ud55c \uc0c1\uc138\ud55c \uc548\ub0b4\uc785\ub2c8\ub2e4. \ub2f9\uc0ac\ub294 \ub9e4\uccb4\uc758 \uc720\ud615\uc5d0 \ub530\ub77c \uc801\uc6a9 \ubd84\uc57c\ub97c \ubd84\ub958\ud558\uace0, \uc774\ub97c \uad6c\uccb4\uc801\uc778 \uc791\ub3d9 \uc0c1\ud669\ubcc4\ub85c \uc138\ubd84\ud654\ud558\uc5ec \uac01 \uc120\ud0dd\uc5d0 \ub300\ud55c \uba85\ud655\ud55c \uacf5\ud559\uc801 \uadfc\uac70\ub97c \uc81c\uc2dc\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n<table style=\"min-width: 100px;\">\n<colgroup>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/>\n<col style=\"min-width: 25px;\" \/><\/colgroup>\n<tbody>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\uc911\uac04 \uce74\ud14c\uace0\ub9ac<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uad6c\uccb4\uc801\uc778 \uc801\uc6a9 \uc0ac\ub840<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uad8c\uc7a5 \ubaa8\ub4dc<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uacf5\ud559\uc801 \uadfc\uac70 \ubc0f \ub17c\ub9ac<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"4\">\uc561\uccb4 (\ubb3c)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\ub0c9\uac01\uc218 (\uc5f4\uad50\ud658\uae30 \uc720\uc785\uad6c)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Fail Open (FO)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc5f4 \uc548\uc804: \ub0c9\uac01\uc7ac \uc720\uc2e4\uc740 \uce58\uba85\uc801\uc778 \uacb0\uacfc\ub97c \ucd08\ub798\ud569\ub2c8\ub2e4. \uc6d0\uc790\ub85c\ub098 \uc124\ube44\uc758 \uacfc\uc5f4, \uc6a9\uc735 \ub610\ub294 \ud3ed\ubc1c\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ubc38\ube0c\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \u201c\ucd5c\ub300 \ub0c9\uac01\u201d \uc0c1\ud0dc\ub85c \uc124\uc815\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\ud654\uc7ac \uc608\ubc29 (\uc2a4\ud504\ub9c1\ud074\ub7ec \uc124\ube44)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Fail Open (FO)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc778\uba85 \uc548\uc804: \ud654\uc7ac\ub85c \uc778\ud574 \uc804\uae30 \uc2dc\uc2a4\ud15c\uc774 \uc190\uc0c1\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc81c\uc5b4 \uc2e0\ud638\uac00 \uc18c\uc190\ub418\ub354\ub77c\ub3c4 \uc2a4\ud504\ub9c1\ud074\ub7ec\ub85c \ubb3c\uc774 \uacf5\uae09\ub420 \uc218 \uc788\ub3c4\ub85d \ubc38\ube0c\ub294 \uae30\uacc4\uc801\uc73c\ub85c \uc5f4\ub824\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\uc77c\ubc18 \uc6a9\uc218 \/ \uc0dd\ud65c\uc6a9\uc218<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uce68\uc218 \ubc29\uc9c0: \ubc24\uc911\uc5d0 \ubc30\uad00\uc774 \ud30c\uc5f4\ub418\uac70\ub098 \uc815\uc804\uc774 \ubc1c\uc0dd\ud560 \uacbd\uc6b0, \uc2dc\uc124 \ub0b4 \uce68\uc218\ub97c \ubc29\uc9c0\ud558\uace0 \uc218\uc790\uc6d0\uc744 \ub0ad\ube44\ud558\uc9c0 \uc54a\ub3c4\ub85d \ubc38\ube0c\uac00 \ub2eb\ud600\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\ud3d0\uc218 \/ \ubc30\ucd9c\uc218 \ubc29\ub958<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\ud658\uacbd \ubcf4\ud638: \ucc98\ub9ac\ub418\uc9c0 \uc54a\uc740 \ud558\uc218\ub098 \ud654\ud559 \ud3d0\uc218\ub294 \ud658\uacbd\uc5d0 \ubc29\ub958\ub418\uc5b4\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \ucc98\ub9ac \uc2dc\uc124\uc5d0 \uc815\uc804\uc774 \ubc1c\uc0dd\ud558\uba74 \ubc29\ub958\uad6c\ub294 \uc644\uc804\ud788 \ubc00\ud3d0\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"2\">\uc2a4\ud300<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uac00\uc5f4 \ucf54\uc77c \/ \uacf5\uc815 \uac00\uc5f4<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uacfc\uc5f4 \ubc29\uc9c0: \uc99d\uae30 \uc720\uc785\uc744 \uc801\uc808\ud788 \uc870\uc808\ud558\uc9c0 \uc54a\uc73c\uba74 \uc555\ub825 \uc6a9\uae30\uc5d0 \uacfc\uc555\uc774 \ubc1c\uc0dd\ud558\uac70\ub098, \uc2dd\ud488\uc774\ub098 \uc758\uc57d\ud488\uacfc \uac19\uc740 \ubbfc\uac10\ud55c \uc81c\ud488\uc774 \ud0c0\uac70\ub098 \ubcc0\uc9c8\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\ud130\ube48 \ubc14\uc774\ud328\uc2a4\/\ubca4\ud2b8 \ud5e4\ub354<\/td>\n<td colspan=\"1\" rowspan=\"1\">Fail Open (FO)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc555\ub825 \uc644\ud654: \ud130\ube48\uc774 \uc815\uc9c0\ud560 \uacbd\uc6b0, \uc99d\uae30\uac00 \ube60\uc838\ub098\uac08 \uacbd\ub85c\uac00 \ub9c8\ub828\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \ubc38\ube0c\uac00 \uc5f4\ub824 \uacfc\uc789 \uc99d\uae30\ub97c \ubc30\ucd9c\ud568\uc73c\ub85c\uc368, \ubc30\uad00\uacfc \ud130\ube48 \ub0a0\uac1c\uac00 \uacfc\uc555\uc73c\ub85c \uc778\ud55c \uc190\uc0c1\uc744 \uc785\uc9c0 \uc54a\ub3c4\ub85d \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"3\">\uc5f0\ub8cc (\uc11d\uc720 \ubc0f \uac00\uc2a4)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\ubc84\ub108 \uacf5\uae09 \/ \uc5f0\uc18c<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\ud3ed\ubc1c \ubc29\uc9c0: \uc5f0\uc18c\uc758 \ud669\uae08\ub960\uc740 \u201c\ubd88\uaf43\uc774 \uc5c6\uc73c\uba74 \uc5f0\ub8cc\ub3c4 \uc5c6\ub2e4\u201d\uc785\ub2c8\ub2e4. \ubc84\ub108 \uad00\ub9ac \uc2dc\uc2a4\ud15c\uc774 \uc815\uc9c0\ud560 \uacbd\uc6b0, \ubbf8\uc5f0\uc18c \uac00\uc2a4\uc758 \ucd95\uc801\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc5f0\ub8cc \uacf5\uae09\uc744 \uc989\uc2dc \ucc28\ub2e8\ud574\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\ud30c\uc774\ud504\ub77c\uc778 ESD (\ube44\uc0c1 \uc815\uc9c0)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\ucc28\ub2e8: \uc7a5\uac70\ub9ac \ud30c\uc774\ud504\ub77c\uc778\uc758 \uacbd\uc6b0, ESD \ubc38\ube0c\ub294 \uc7a0\uc7ac\uc801\uc778 \uc720\ucd9c \ub610\ub294 \ub204\ucd9c\uc758 \uaddc\ubaa8\ub97c \ucd5c\uc18c\ud654\ud558\uae30 \uc704\ud574 \ud574\ub2f9 \uad6c\uac04\uc744 \ucc28\ub2e8\ud574\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\ud50c\ub808\uc5b4 \uac00\uc2a4 \/ \ubc30\uae30 \ub77c\uc778<\/td>\n<td colspan=\"1\" rowspan=\"1\">Fail Open (FO)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc548\uc804 \ub300\ud53c \uacbd\ub85c: \uc808\ub300 \ucd9c\uad6c\ub97c \ub9c9\uc544\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uac00\uc2a4 \uacf5\uc7a5\uc5d0\uc11c \uc555\ub825\uc774 \uc0c1\uc2b9\ud560 \uacbd\uc6b0, \uac00\uc2a4\uac00 \uc548\uc804\ud558\uac8c \uc5f0\uc18c\ub420 \uc218 \uc788\ub3c4\ub85d \ud50c\ub808\uc5b4 \uc2a4\ud0dd\uc73c\ub85c \uc5f0\uacb0\ub41c \ubc38\ube0c\uac00 \uc5f4\ub824\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"3\">\ud654\ud559\ubb3c\uc9c8<\/td>\n<td colspan=\"1\" rowspan=\"1\">\ubc18\uc751\uae30 \uacf5\uae09\ubb3c (\ucd09\ub9e4\/\ubc18\uc751\ubb3c)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\ubc18\uc751 \uc81c\uc5b4: \u201c\ud3ed\uc8fc \ubc18\uc751\u201d\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574. \ud63c\ud569 \uacfc\uc815\uc744 \uc81c\uc5b4\ud560 \uc218 \uc5c6\uac8c \ub418\uba74 \uc6d0\ub8cc \ud22c\uc785\uc744 \uc911\ub2e8\ud574\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\ud0f1\ud06c \ud558\ubd80 \ubc30\uc218\uad6c<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc720\ucd9c \ubc29\uc9c0: \uc911\ub825\uc740 \uacb0\ucf54 \uba48\ucd94\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc815\uc804\uc774 \ubc1c\uc0dd\ud558\uba74 \ubc38\ube0c\uac00 \ub2eb\ud600 \uc720\ud574 \ud654\ud559 \ubb3c\uc9c8\uc774 \ud0f1\ud06c \ub0b4\uc5d0 \uba38\ubb3c\uac8c \ud558\uace0 \ubc30\uc218 \uc2dc\uc2a4\ud15c\uc73c\ub85c \uc720\ucd9c\ub418\uc9c0 \uc54a\ub3c4\ub85d \ud574\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\uc9c8\uc18c \ucda9\uc9c4 (\uc785\uad6c)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Fail Open (FO)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc9c4\uacf5 \ubc29\uc9c0: \ud0f1\ud06c\uac00 \ub0c9\uac01\ub418\uba74 \uc555\ub825\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. \ubc38\ube0c\uac00 \uc5f4\ub824 \uc9c8\uc18c\ub97c \uc720\uc785\uc2dc\ucf1c\uc57c \ud558\uba70, \uc774\ub97c \ud1b5\ud574 \uc9c4\uacf5\uc73c\ub85c \uc778\ud574 \ud0f1\ud06c\uac00 \uc548\ucabd\uc73c\ub85c \ucc0c\uadf8\ub7ec\uc9c0\ub294 \ud604\uc0c1(\ub0b4\ud30c)\uc744 \ubc29\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"2\">\uae30\uccb4<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc720\ud574 \uac00\uc2a4 (\uc5fc\uc18c, \uc554\ubaa8\ub2c8\uc544)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc778\uc6d0 \uc548\uc804: \uc720\ub3c5 \uac00\uc2a4\uac00 \uc8fc\uac70 \uc9c0\uc5ed\uc774\ub098 \uc81c\uc5b4\uc2e4\ub85c \uc720\uc785\ub418\ub294 \uac83\uc744 \ubc29\uc9c0\ud558\uac70\ub098 \uc774\ub97c \ud1b5\uc81c\ud558\uae30 \uc704\ud574 \uc989\uac01\uc801\uc778 \ucc28\ub2e8 \uc870\uce58\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\uc555\ucd95 \uacf5\uae30 (\uc2dc\uc2a4\ud15c \uacf5\uae09)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc2e4\ud328-\uc885\ub8cc (FC)<\/td>\n<td colspan=\"1\" rowspan=\"1\">\uc5d0\ub108\uc9c0 \ubcf4\uc874: \ud30c\uc774\ud504\uac00 \ud30c\uc5f4\ub420 \uacbd\uc6b0, \uc8fc\uc694 \uc218\uc2e0 \ubc38\ube0c\ub97c \ub2eb\uc544 \uc911\uc694\ud55c \uacf5\uc555 \uae30\uae30\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \ub0a8\uc544 \uc788\ub294 \uc555\ucd95 \uacf5\uae30\ub7c9\uc744 \ubcf4\uc874\ud574\uc57c \ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc624\ub958\uc758 \ud53c\ud574 \ub300\uc0c1\uc5d0 \ub530\ub77c \uacb0\uc815 \ub9e4\ud2b8\ub9ad\uc2a4\ub294 \ud45c\uc5d0 \ub098\uc640 \uc788\ub294 \ub300\ub85c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\uc7a5\ube44(\uacfc\uc5f4\/\ub0b4\ubd80 \ud3ed\ubc1c)\uac00 \ud53c\ud574 \ub300\uc0c1\uc778 \uacbd\uc6b0:<\/strong> \uc6b0\ub9ac\ub294 \uc555\ub825\uc744 \uc644\ud654\ud558\uae30 \uc704\ud574 \u2018Fail Open\u2019 \ubc29\uc2dd\uc744 \uc120\ud638\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud53c\ud574 \ub300\uc0c1\uc774 \ud658\uacbd\uc774\ub098 \uc778\uc6d0\uc778 \uacbd\uc6b0(\uc720\ucd9c\/\uc720\ub3c5 \ubb3c\uc9c8 \ub204\ucd9c):<\/strong> \uc704\ud5d8\uc744 \ucc28\ub2e8\ud558\uae30 \uc704\ud574 \u2018Fail Closed\u2019 \ubc29\uc2dd\uc744 \uc120\ud638\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ucc38\uace0:<\/strong> \uc774\ub294 \uc77c\ubc18\uc801\uc778 \uc5c5\uacc4 \ud45c\uc900\uc785\ub2c8\ub2e4. \ud2b9\uc218\ud55c \uacf5\uc815 \uc870\uac74\uc758 \uacbd\uc6b0\uc5d0\ub294 \ubc18\ub4dc\uc2dc \ubcc4\ub3c4\uc758 HAZOP(\uc704\ud5d8 \ubc0f \uac00\ub3d9\uc131 \ubd84\uc11d)\uc744 \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-24130\" src=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close3-300x225.webp\" alt=\"\u2018fail open\u2019 \ub300 \u2018fail close\u2019\" width=\"512\" height=\"384\" srcset=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close3-300x225.webp 300w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close3-768x576.webp 768w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close3-600x450.webp 600w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close3.webp 1024w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/p>\n<h2 data-pm-slice=\"1 3 []\">VINCER \uc561\ucd94\uc5d0\uc774\ud130 \ubc0f \ubc38\ube0c\ub97c \ud1b5\ud55c \uc624\ub958 \ubc29\uc9c0\ud615 \uc2e0\ub8b0\uc131 \ud655\ubcf4<\/h2>\n<p>VINCER\uc758 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ucca0\ud559\uc740 \uc774\ub7ec\ud55c \uae30\uc220\uc801 \uc694\uad6c \uc0ac\ud56d\uc744 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \ud604\uc2e4\ub85c \uad6c\ud604\ud558\ub294 \ub370 \uae30\ubc18\uc744 \ub450\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub2f9\uc0ac\ub294 \ubc38\ube0c\uac00 \ubb34\uc5c7\ubcf4\ub2e4\ub3c4 \uc548\uc804 \uc7a5\uce58\uc774\uba70, \uace0\uc7a5 \ubc29\uc9c0 \uc0c1\ud669\uc5d0\uc11c\ub294 \uadf8 \ub2e4\uc74c\uc73c\ub85c \uc720\ub7c9 \uc81c\uc5b4 \uc7a5\uce58\ub77c\ub294 \uc810\uc744 \uc798 \uc54c\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uac83\uc774 \ubc14\ub85c \ub2f9\uc0ac\uc758 \uc561\ucd94\uc5d0\uc774\ud130\uc5d0 \ub192\uc740 \ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0b4\uc5f4\uc131\uc744 \uac16\ub3c4\ub85d \ud2b9\ubcc4\ud788 \uc81c\uc791\ub41c \uace0\ud488\uc9c8 \uc218\uc785 \uc530\uc744 \uc0ac\uc6a9\ud558\ub294 \uc774\uc720\uc785\ub2c8\ub2e4. \ub2f9\uc0ac\ub294 \uace0\ud488\uc9c8 \uc530\ub9c1 \uc18c\uc7ac\uc5d0 \uc9d1\uc911\ud568\uc73c\ub85c\uc368, \uc800\uae09 \ub300\uccb4 \uc81c\ud488\uc5d0\uc11c \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \uc811\ucc29 \ub9c8\ucc30 \ubc0f \ub0b4\ubd80 \ub204\ucd9c\uc758 \uc704\ud5d8\uc744 \uc81c\uac70\ud569\ub2c8\ub2e4.<\/p>\n<p>VINCER\ub294 \uc774\ub7ec\ud55c \ub0b4\uad6c\uc131\uc744 \ubcf4\uc7a5\ud558\uae30 \uc704\ud574 \u2018\ub354\ube14 \uccb4\ud06c(Double Check)\u2019\ub77c\ub294 \uc5c4\uaca9\ud55c \ud504\ub85c\ud1a0\ucf5c\uc744 \uc801\uc6a9\ud569\ub2c8\ub2e4. \ub2f9\uc0ac\ub294 \uc77c\ubc18\uc801\uc778 \uacf5\uc7a5 \uc0d8\ud50c\ub9c1 \ub2e8\uacc4\ub97c \ub118\uc5b4, \uc561\ucd94\uc5d0\uc774\ud130\uc5d0 \ub300\ud574 \uae30\uacc4\uc801 \uc218\uba85\uc744 \uac80\uc99d\ud558\ub294 \ud30c\uad34 \uc2dc\ud5d8\uc744 \uc2e4\uc2dc\ud558\uace0 \ubaa8\ub4e0 \ubc38\ube0c \ubcf8\uccb4\uc5d0 \ub300\ud574 100% \ub204\uc124 \uac80\uc0ac\ub97c \uc218\ud589\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \u2018Fail Closed\u2019 \uba85\ub839\uc774 \ub0b4\ub824\uc84c\uc744 \ub54c \uc561\ucd94\uc5d0\uc774\ud130\uac00 \uc815\uc9c0\ud558\ub294 \ub300\uc2e0, \uac80\uc99d\ub41c \uae30\ud3ec\uac00 \uc0c8\uc9c0 \uc54a\ub294 \uc644\ubcbd\ud55c \ubc00\ubd09\uc774 \uc774\ub8e8\uc5b4\uc9d0\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ucca0\uc800\ud55c \ubb3c\ub9ac\uc801 \uac80\uc99d\uc740 ISO9001, CE, SIL(\uc548\uc804 \ubb34\uacb0\uc131 \uc218\uc900)\uacfc \uac19\uc740 \uc911\uc694\ud55c \uc778\uc99d\uc744 \ud1b5\ud574 \ub4b7\ubc1b\uce68\ub429\ub2c8\ub2e4. \ub610\ud55c, 10\ub144 \uc774\uc0c1\uc758 \uacbd\ud5d8\uc744 \ubcf4\uc720\ud55c \ub2f9\uc0ac\uc758 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ubd80\uc11c\ub294 \ub3c5\uc790\uc801\uc778 \u20188\ucc28\uc6d0 \ubd84\uc11d(8-Dimension Analysis)\u2019 \uae30\ubc95\uc744 \ud65c\uc6a9\ud569\ub2c8\ub2e4. \ub2f9\uc0ac\ub294 \ub9e4\uccb4\uc758 \uc810\ub3c4, \uc555\ub825 \uac15\ud558 \ub4f1\uc758 \ubcc0\uc218\ub97c \uba74\ubc00\ud788 \uac80\ud1a0\ud558\uc5ec, \uace0\uac1d\uc758 \u2018Fail Open\u2019 \ub610\ub294 \u2018Fail Closed\u2019 \uc120\ud0dd\uc774 \ub2e8\uc21c\ud55c \ucd94\uce21\uc774 \uc544\ub2cc, \uacf5\ud559\uc801\uc73c\ub85c \uc785\uc99d\ub41c \ud655\uc2e4\uc131\uc774 \ub418\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ud398\uc77c\uc138\uc774\ud504 \uc120\ud0dd\uc5d0 \ubbf8\uce58\ub294 \uc5d0\ub108\uc9c0 \ubc0f \ube44\uc6a9\uc758 \uc601\ud5a5<\/h2>\n<p>\uacbd\uc81c\uc131\uacfc \uc6b4\uc601 \ud6a8\uc728\uc131\uc740 \ubc38\ube0c \uc0ac\uc591\uc744 \uacb0\uc815\ud558\ub294 \ud575\uc2ec \uc694\uc18c\uc785\ub2c8\ub2e4. \u2018\uac1c\ubc29 \uc720\uc9c0(Fail Open)\u2019 \ub610\ub294 \u2018\ud3d0\uc1c4 \uc720\uc9c0(Fail Closed)\u2019 \ubc29\uc2dd\uc744 \uc120\ud0dd\ud558\ub294 \uc8fc\ub41c \uc774\uc720\ub294 \uc548\uc804\uc131\uc774\uc9c0\ub9cc, \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \uc774\ub7ec\ud55c \uacb0\uc815\uc774 \uc5d0\ub108\uc9c0 \uc18c\ube44\ub7c9, \uc124\uce58 \uba74\uc801 \ubc0f \ud504\ub85c\uc81d\ud2b8 \uc608\uc0b0\uc5d0 \ubbf8\uce58\ub294 \uc0c1\ub2f9\ud55c \uc601\ud5a5\ub3c4 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\uc6b4\uc601\uc0c1\uc758 \uc601\ud5a5 (\uc5d0\ub108\uc9c0 \ubc0f \ud06c\uae30):<\/strong> \ud398\uc77c\uc138\uc774\ud504(\uc2a4\ud504\ub9c1 \ub9ac\ud134) \uc561\ucd94\uc5d0\uc774\ud130\ub97c \uc0ac\uc6a9\ud558\uae30\ub85c \uacb0\uc815\ud558\uba74, \uacf5\uc555 \uc2dc\uc2a4\ud15c\uc5d0 \ubb3c\ub9ac\uc801 \ubd80\ub2f4\uc774 \uac00\uc911\ub429\ub2c8\ub2e4. \uc2a4\ud504\ub9c1 \ub9ac\ud134 \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uc77c\ubc18 \uc81c\ud488\uacfc \ub2ec\ub9ac \ubc38\ube0c\ub97c \ud68c\uc804\uc2dc\ud0ac \ub54c \ubb34\uac70\uc6b4 \uc548\uc804 \uc2a4\ud504\ub9c1\uc758 \ud798\uc744 \uc774\uaca8\ub0bc \uc218 \uc788\uc744 \ub9cc\ud07c \ucda9\ubd84\ud55c \ud798\uc744 \ubc1c\uc0dd\uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 \uc561\ucd94\uc5d0\uc774\ud130 \uc2e4\ub9b0\ub354\ub294 \ube44\ud398\uc77c\uc138\uc774\ud504 \uc81c\ud488\ubcf4\ub2e4 \ubb3c\ub9ac\uc801\uc73c\ub85c \ub354 \ucee4\uc57c \ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c 30%\uc5d0\uc11c 50% \uc815\ub3c4 \ub354 \ud07d\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uc0ac\uc774\ud074\ub2f9 \ud6e8\uc52c \ub354 \ub9ce\uc740 \uacf5\uae30\uac00 \uc18c\ubaa8\ub418\uace0, \ud50c\ub79c\ud2b8 \uc555\ucd95\uae30\uc758 \uc804\ub825 \uc18c\ube44\ub7c9\ub3c4 \uc99d\uac00\ud558\uba70, \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \ubc00\uc9d1\ub41c \ubc30\uad00 \ub799 \ub0b4\uc5d0\uc11c \ub354 \ud070 \uc124\uce58 \uacf5\uac04\uc744 \uace0\ub824\ud558\uc5ec \uc124\uacc4\ub97c \ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc7ac\uc815\uc801 \ud604\uc2e4 (\ubcf4\ud5d8 \ub300 \uac00\uaca9):<\/strong> \uc548\uc804\uc5d0\ub294 \uc9c1\uc811\uc801\uc778 \ube44\uc6a9\uc774 \ub530\ub985\ub2c8\ub2e4. \ud06c\uae30\uac00 \ub354 \ud06c\uace0 \uc2a4\ud504\ub9c1 \uce74\ud2b8\ub9ac\uc9c0\uac00 \ubcf5\uc7a1\ud558\uae30 \ub54c\ubb38\uc5d0 \uc2a4\ud504\ub9c1 \ub9ac\ud134 \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud45c\uc900 \uc81c\ud488\ubcf4\ub2e4 20-40% \ub354 \ube44\uc309\ub2c8\ub2e4. \uadf8\ub7fc\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \uc774 \ube44\uc6a9\uc740 \ub2e8\uc21c\ud55c \ube44\uc6a9\uc774 \uc544\ub2c8\ub77c \ubcf4\ud5d8\ub8cc\ub85c \uac04\uc8fc\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc561\ucd94\uc5d0\uc774\ud130\uc758 \ube44\uc6a9\uc740 \u2018\uace0\uc7a5 \ubc1c\uc0dd \uc2dc \ubc1c\uc0dd\ud558\ub294 \ube44\uc6a9\u2019\uacfc \ube44\uad50\ud574\uc57c \ud569\ub2c8\ub2e4. \ud55c \ubc88\uc758 \uc815\uc804\uc73c\ub85c $50,000 \ubc30\uce58\uc758 \ud654\ud559 \ubb3c\uc9c8\uc774 \ud30c\uc190\ub418\uac70\ub098 \uc704\ud5d8\ud55c \uc720\ucd9c \uc0ac\uace0\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uc0c1\ud669\uc5d0\uc11c, \uc800\ub834\ud55c \uc561\ucd94\uc5d0\uc774\ud130\ub97c \uc120\ud0dd\ud574 \uc218\ubc31 \ub2ec\ub7ec\ub97c \uc808\uc57d\ud558\ub294 \uac83\uc740 \uc88b\uc740 \ud22c\uc790\uac00 \uc544\ub2d9\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc7a5\uce58\ub97c \uc9c0\ub098\uce58\uac8c \uacfc\ub300 \uc124\uacc4\ud558\uc5ec \uc608\uc0b0\uc744 \ub0ad\ube44\ud558\uc9c0 \uc54a\uc73c\uba74\uc11c\ub3c4 \uc2e0\ub8b0\uc131\uc744 \ud655\ubcf4\ud558\uae30 \uc704\ud574\uc11c\ub294 \uce58\uc218 \uc124\uacc4\uc758 \uc815\ud655\uc131\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\uc624\ub958 \uc704\uce58\ub97c \ud655\uc778\ud558\ub294 \ubc29\ubc95<\/h2>\n<p>\uc2e4\uc81c \uace0\uc7a5 \uc704\uce58\ub97c \ud655\uc778\ud558\ub294 \uac83\uc740 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc548\uc804 \uc810\uac80 \uc0ac\ud56d\uc785\ub2c8\ub2e4. \ucd94\uce21\uc5d0 \uc758\uc874\ud574\uc11c\ub294 \uc548 \ub418\uba70, \ubb3c\ub9ac\uc801 \ud558\ub4dc\uc6e8\uc5b4\uac00 \uacf5\uc815\uc5d0 \ud544\uc694\ud55c \uc548\uc804 \ub85c\uc9c1\uacfc \ud638\ud658\ub418\ub294\uc9c0 \ubc18\ub4dc\uc2dc \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uc138 \ub2e8\uacc4\uc758 \uc810\uc9c4\uc801\uc778 \uc810\uac80\uc744 \ud1b5\ud574 \uc2dc\uc2a4\ud15c\uc744 \ud14c\uc2a4\ud2b8\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/p>\n<h3>P&amp;ID \ub3c4\uba74 \uae30\ud638 \uc124\uba85<\/h3>\n<p>\uc124\uacc4 \ub2e8\uacc4\uc5d0\uc11c\ub294 \ubc30\uad00 \ubc0f \uacc4\uae30 \ubc30\uc120\ub3c4(P&amp;ID)\uc5d0 \uc548\uc804 \ub85c\uc9c1\uc774 \uba85\uc2dc\ub429\ub2c8\ub2e4. \ubc38\ube0c \uc2a4\ud15c \ub77c\uc778\uc5d0 \ud45c\uc2dc\ub418\ub294 \uc77c\ubc18\uc801\uc778 \uae30\ud638\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. \ud504\ub85c\uc81d\ud2b8\uc5d0 \ub530\ub77c \ubc94\ub840\uac00 \ub2e4\ub97c \uc218 \uc788\uc9c0\ub9cc, \ud45c\uc900 \uae30\ud638\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>FC (\uc2e4\ud328 \uc2dc \ub2eb\ud798):<\/strong> \ubc38\ube0c \ubcf8\uccb4\ub97c \uac00\ub9ac\ud0a4\ub294 \ud654\uc0b4\ud45c, \ub610\ub294 \ub2e8\uc21c\ud788 FC\ub85c \ud45c\uc2dc\ub41c \ud654\uc0b4\ud45c.<\/li>\n<li><strong>FO (Fail Open):<\/strong> \ubc38\ube0c \ubcf8\uccb4 \ubc16\uc73c\ub85c \ud5a5\ud558\ub294 \ud654\uc0b4\ud45c, \ub610\ub294 \u2018FO\u2019\ub85c \ud45c\uc2dc\ub41c \ud654\uc0b4\ud45c.<\/li>\n<li><strong>FL (Fail Last):<\/strong> \uc904\uae30(\uc790\ubb3c\uc1e0\ub97c \uc0c1\uc9d5\ud568)\uc640 \uad50\ucc28\ud558\ub294 \ub450 \uac1c\uc758 \ud3c9\ud589\uc120, \ub610\ub294 \u2018FL\u2019\uc774\ub77c\uace0 \ud45c\uc2dc\ub41c \uc120.<\/li>\n<\/ul>\n<h3>FO\uc640 FC\ub97c \uc2dc\uac01\uc801\uc73c\ub85c \uad6c\ubcc4\ud558\ub294 \ubc29\ubc95\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n<p>\ud604\uc7a5\uc5d0 \uc788\uc744 \ub54c \ub3c4\uba74\uc774 \uc5c6\ub294 \uacbd\uc6b0, \uc561\ucd94\uc5d0\uc774\ud130\uc758 \ubd80\uc18d\ud488\uacfc \ud0dc\uadf8\ub97c \ud655\uc778\ud558\uc5ec \uc791\ub3d9 \uc6d0\ub9ac\ub97c \ud30c\uc545\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\uba85\ud310: <\/strong>\uc774\uac83\uc774 \uac00\uc7a5 \ud655\uc2e4\ud55c \uc9d5\ud6c4\uc785\ub2c8\ub2e4. \u201c\uc791\ub3d9 \ubc29\uc2dd(Action)\u201d \ucf54\ub4dc\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624. SR-CW(\uc2dc\uacc4 \ubc29\ud5a5 \uc2a4\ud504\ub9c1 \ubcf5\uadc0)\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc2a4\ud504\ub9c1\uc774 \ubc38\ube0c\ub97c \ub2eb\ub294\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4(Fail Closed). \ubc18\uba74 SR-CCW(\ubc18\uc2dc\uacc4 \ubc29\ud5a5)\ub294 \uc2a4\ud504\ub9c1\uc774 \ubc38\ube0c\ub97c \uc5ec\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4(Fail Open).<\/li>\n<li><strong>\uc194\ub808\ub178\uc774\ub4dc \uc810\uac80: <\/strong>\uc561\ucd94\uc5d0\uc774\ud130\uc758 \ud30c\uc77c\ub7ff \ubc38\ube0c\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624. 3\/2-Way \uc194\ub808\ub178\uc774\ub4dc(\uc561\ucd94\uc5d0\uc774\ud130\ub85c \uc5f0\uacb0\ub41c \uacf5\uae30 \ub77c\uc778\uc774 \ud558\ub098\ubfd0\uc778 \uacbd\uc6b0)\ub77c\uba74, \uc774\ub294 \ud398\uc77c\uc138\uc774\ud504(Fail-Safe) \ubc29\uc2dd\uc785\ub2c8\ub2e4. 5\/2-Way\uc778 \uacbd\uc6b0, \uc544\ub9c8\ub3c4 \ub354\ube14 \uc561\ud305(Double Acting, \ud398\uc77c\uc138\uc774\ud504 \uc5c6\uc74c) \ubc29\uc2dd\uc77c \uac83\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ube0c\ub9ac\ub354\ub97c \uc810\uac80\ud558\uc2ed\uc2dc\uc624:<\/strong> \uba85\ud310\uc758 \ub0b4\uc6a9\uc744 \ud655\uc778\ud560 \uc218 \uc5c6\ub294 \uacbd\uc6b0, \uacf5\uae30 \uc5f0\uacb0\uad6c\ub97c \uc0b4\ud3b4\ubcf4\uc2ed\uc2dc\uc624. \ud398\uc77c\uc138\uc774\ud504(Fail-Safe) \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud558\ub098\uc758 \uc5f0\uacb0\uad6c\uc5d0 \uacf5\uae30 \ud638\uc2a4\uac00 \uc5f0\uacb0\ub418\uc5b4 \uc788\uc73c\uba70, \ub2e4\ub978 \uc5f0\uacb0\uad6c\uc5d0\ub294 \uc2a4\ud504\ub9c1 \ucc54\ubc84\uc758 \uacf5\uae30 \uc21c\ud658\uc744 \uc704\ud574 \ube0c\ub9ac\ub354 \ubca4\ud2b8(Breather Vent)\ub098 \uc18c\uc74c\uae30(\uc18c\ud615 \ud50c\ub77c\uc2a4\ud2f1 \ub610\ub294 \uccad\ub3d9 \ud544\ud130)\uac00 \uc7a5\ucc29\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \ub450 \uc5f0\uacb0\uad6c \ubaa8\ub450\uc5d0 \uacf5\uae30 \ud638\uc2a4\uac00 \uc5f0\uacb0\ub418\uc5b4 \uc788\ub294 \uac83\uc744 \ud655\uc778\ud558\uba74, \uc774\ub294 \uc544\ub9c8\ub3c4 \ud45c\uc900 \uc591\ubc29\ud5a5 \uc791\ub3d9(Double Acting) \uc7a5\uce58\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>\u201c\uc5d0\uc5b4 \ucef7\u201d \ud14c\uc2a4\ud2b8: \uc721\uc548 \uac80\uc0ac\uac00 \ud1b5\ud558\uc9c0 \uc54a\uc744 \ub54c<\/h3>\n<p>\ubb3c\ub9ac \ubc95\uce59\uc740 \uac70\uc9d3\ub9d0\uc744 \ud558\uc9c0 \uc54a\uc9c0\ub9cc, \ub77c\ubca8\uc740 \uc798\ubabb \uc778\uc1c4\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uc7a5 \uc704\uce58\ub97c \ud655\uc778\ud558\ub294 \uc720\uc77c\ud55c \ubc29\ubc95\uc740 \uae30\ub2a5 \uc2dc\ubbac\ub808\uc774\uc158\ubfd0\uc785\ub2c8\ub2e4.<\/p>\n<ul>\n<li><strong>\uc808\ucc28:<\/strong> \ubc38\ube0c\ub97c \uc815\uc0c1 \uc791\ub3d9 \uc704\uce58(\uc608: \u2018\uc5f4\ub9bc\u2019)\ub85c \ub3cc\ub9ac\uc2ed\uc2dc\uc624. \uadf8\ub7f0 \ub2e4\uc74c, \uacf5\uae30 \uacf5\uae09 \ud29c\ube0c\ub97c \ubb3c\ub9ac\uc801\uc73c\ub85c \ubd84\ub9ac\ud558\uac70\ub098 \ucc28\ub2e8 \ubc38\ube0c\ub97c \ub2eb\uc73c\uc2ed\uc2dc\uc624. \ub2e8\uc21c\ud788 \uc804\uae30 \uc2e0\ud638\ub97c \ucc28\ub2e8\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uc774\ub294 \uc194\ub808\ub178\uc774\ub4dc\ub9cc \ud14c\uc2a4\ud2b8\ud560 \ubfd0\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\uacb0\uacfc:<\/strong> \ubc38\ube0c\uac00 \uc989\uc2dc \ub2eb\ud788\uba74 \u2018Fail Closed\u2019 \uc0c1\ud0dc\uc785\ub2c8\ub2e4. \uc2e4\uc218\ub85c \uc5f4\ub9ac\uba74 \u2018Fail Open\u2019 \uc0c1\ud0dc\uc785\ub2c8\ub2e4. \ubc38\ube0c\uac00 \uc6c0\uc9c1\uc774\uc9c0 \uc54a\uace0 \uacf5\uae30\uac00 \ubc30\ucd9c\ub418\ub294 \uc18c\ub9ac\uac00 \ub4e4\ub9ac\uc9c0 \uc54a\ub294\ub2e4\uba74, \u2018Fail Last\u2019 \uc0c1\ud0dc\uc774\uac70\ub098 \ud45c\uc900 \ube44\uc548\uc804\ud615 \uc7a5\uce58\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\uc548\uc804 \uc218\uce59:<\/strong> \uc774 \uc2dc\ud5d8 \uc911\uc5d0\ub294 \ubc38\ube0c \uc5f0\uacb0\ubd80\uc5d0 \uc190\uc774\ub098 \uacf5\uad6c\ub97c \ub0a8\uaca8\ub450\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uc2a4\ud504\ub9c1 \ubcf5\uadc0\uc2dd \uc561\ucd94\uc5d0\uc774\ud130\ub294 \uacf5\uae30\uac00 \ube60\uc9c0\uba74 \uc989\uc2dc \uc5c4\uccad\ub09c \ud1a0\ud06c\ub97c \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-24127\" src=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close-300x300.webp\" alt=\"\u2018fail open\u2019 \ub300 \u2018fail close\u2019\" width=\"384\" height=\"384\" srcset=\"https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close-300x300.webp 300w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close-150x150.webp 150w, https:\/\/www.vincervalve.com\/wp-content\/uploads\/2025\/12\/fail-open-vs-fail-close.webp 370w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/p>\n<h2 data-pm-slice=\"1 1 []\">\uacb0\ub860<\/h2>\n<p>\u2018\ud398\uc77c \uc624\ud508(Fail Open)\u2019 \ub610\ub294 \u2018\ud398\uc77c \ud074\ub85c\uc988\ub4dc(Fail Closed)\u2019 \ubc38\ube0c\uc758 \uc120\ud0dd\uc740 \uc0b0\uc5c5 \uacf5\uc815\uc5d0\uc11c \ub9d0\uc5c6\uc774 \uc9c0\ucf1c\ubcf4\ub294 \ud30c\uc218\uafbc\uacfc\ub3c4 \uac19\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc870\uc6a9\ud55c \uc0ac\ubb34\uc2e4\uc5d0\uc11c \uc774\ub8e8\uc5b4\uc9c0\ub294 \uc120\ud0dd\uc774\uc9c0\ub9cc, \uc5b8\uc820\uac00 \ud63c\ub780\uc2a4\ub7ec\uc6b4 \ud50c\ub79c\ud2b8 \ube44\uc0c1 \uc0c1\ud669\uc758 \uc6b4\uba85\uc744 \uc88c\uc6b0\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc5b4\ub290 \ud55c\ucabd\uc774 \ub2e4\ub978 \ucabd\ubcf4\ub2e4 \ub354 \ub0ab\ub2e4\uace0 \ud560 \uc218\ub294 \uc5c6\uc73c\uba70, \ub2e8\uc9c0 \uace0\ub824 \uc911\uc778 \ud2b9\uc815 \uc2dc\uc2a4\ud15c\uc758 \ubb3c\ub9ac\uc801 \ud2b9\uc131\uacfc \uc704\ud5d8 \uc694\uc18c\uc5d0 \ubd80\ud569\ud558\ub294 \uac83\uc744 \uc120\ud0dd\ud574\uc57c \ud560 \ubfd0\uc785\ub2c8\ub2e4. \u2018Fail Open\u2019 \ub0c9\uac01 \ubc38\ube0c\uac00 \uc7a5\ucc29\ub41c \uacfc\uc5f4 \ubc18\uc751\uae30\uc774\ub4e0, \u2018Fail Closed\u2019 \ucc28\ub2e8 \ubc38\ube0c\uac00 \uc124\uce58\ub41c \uc720\ub3c5 \uac00\uc2a4 \ubc30\uad00\uc774\ub4e0, \uadf8 \uacb0\uc815\uc5d0\ub294 \ud0c0\ub2f9\ud55c \uadfc\uac70\uac00 \uc788\uc5b4\uc57c \ud558\uba70 \uc7a5\ube44\ub294 \uc2e0\ub8b0\ud560 \uc218 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uad81\uadf9\uc801\uc778 \ubaa9\ud45c\ub294 \uc815\uc804\uc774 \ubc1c\uc0dd\ud558\uace0 \uc870\uba85\uc774 \uaebc\uc84c\uc744 \ub54c, \uc2dc\uc2a4\ud15c\uc774 \uc720\uc77c\ud558\uac8c \uc911\uc694\ud55c \ubc29\uc2dd, \uc989 \uc548\uc804\ud558\uac8c \uace0\uc7a5 \ub098\ub3c4\ub85d \ubcf4\uc7a5\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h2>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<p><strong>Q: \u2018\ud398\uc77c \uc624\ud508(fail open)\u2019\uacfc \u2018\ud398\uc77c \uc167(fail shut)\u2019\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c? <\/strong><\/p>\n<p><strong>A:<\/strong> \ud398\uc77c-\uc624\ud508 \ubc38\ube0c\ub294 \uc804\uc6d0\uc774 \ub04a\uc5b4\uc9c0\uba74 \uc790\ub3d9\uc73c\ub85c \uc5f4\ub824 \uc720\uccb4\uac00 \ud750\ub974\ub3c4\ub85d \ud558\uba70, \ud398\uc77c-\uc167 \ubc38\ube0c\ub294 \uc790\ub3d9\uc73c\ub85c \ub2eb\ud600 \uc720\uccb4\uc758 \ud750\ub984\uc744 \ucc28\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n<p><strong>Q: 'fail open'\uc740 \ud2b8\ub798\ud53d\uc744 \ud5c8\uc6a9\ud558\ub294 \ubc29\uc2dd\uc778\uac00\uc694? <\/strong><\/p>\n<p><strong>A:<\/strong> \ub124. \uace0\uc7a5 \ubc1c\uc0dd \uc2dc \ud398\uc77c-\uc624\ud508 \ubc38\ube0c\ub294 \uc644\uc804\ud788 \uc5f4\ub9b0 \uc704\uce58\ub85c \uc124\uc815\ub418\uc5b4, \uac00\uc2a4\ub098 \uc720\uccb4\uc758 \ud750\ub984(\ud1b5\ud589)\uc774 \uc81c\ud55c\ubc1b\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>Q: \ud398\uc77c \uc624\ud508 \ubc38\ube0c\ub97c \ud398\uc77c \ud074\ub85c\uc988 \ubc38\ube0c\ub85c \ubcc0\ud658\ud558\ub294 \ubc29\ubc95\uc740 \ubb34\uc5c7\uc778\uac00\uc694? <\/strong><\/p>\n<p><strong>A:<\/strong> \uc77c\ubc18\uc801\uc73c\ub85c \uc561\ucd94\uc5d0\uc774\ud130\ub97c \ubd84\ud574\ud55c \ud6c4 \ub0b4\ubd80 \uc2a4\ud504\ub9c1\uacfc \ud53c\uc2a4\ud1a4\uc758 \ubc29\ud5a5\uc744 \ubc18\ub300\ub85c \ubc14\uafd4\uc57c \ud569\ub2c8\ub2e4. \ubaa8\ub4e0 \uc561\ucd94\uc5d0\uc774\ud130 \ubaa8\ub378\uc774 \ubc29\ud5a5 \uc804\ud658\uc774 \uac00\ub2a5\ud55c \uac83\uc740 \uc544\ub2c8\ub77c\ub294 \uc810\uc5d0 \uc720\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p><strong>Q: \uc5ed\ub958\ubc29\uc9c0\ubc38\ube0c\ub294 \uc5f4\ub824 \uc788\ub098\uc694, \ub2eb\ud600 \uc788\ub098\uc694? <\/strong><\/p>\n<p><strong>A:<\/strong> \uc5ed\ub958\ubc29\uc9c0\ubc38\ube0c\uc5d0\ub294 \uc9c0\uc815\ub41c \uc548\uc804 \ubaa8\ub4dc\uac00 \uc5c6\uc2b5\ub2c8\ub2e4. \uc218\ub3d9\uc2dd \uc7a5\uce58\uc778 \ub9cc\ud07c, \uc774 \ubc38\ube0c\ub294 (\uc774\ubb3c\uc9c8\ub85c \uc778\ud574) \uc5f4\ub9b0 \uc0c1\ud0dc\ub85c \uace0\ucc29\ub418\uac70\ub098 (\ubd80\uc2dd\uc73c\ub85c \uc778\ud574) \ub2eb\ud78c \uc0c1\ud0dc\ub85c \uace0\ucc29\ub418\ub294 \ub4f1\uc758 \uae30\uacc4\uc801 \uace0\uc7a5\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u2018\uc2e4\ud328 \uc2dc \uac1c\ubc29(fail open)\u2019\uacfc \u2018\uc2e4\ud328 \uc2dc \ud3d0\uc1c4(fail close)\u2019\uc5d0 \ub300\ud55c \ub2f9\uc0ac\uc758 \uac00\uc774\ub4dc\ub97c \ud1b5\ud574 \ubc38\ube0c \uc548\uc804\uc758 \ud575\uc2ec\uc801\uc778 \ucc28\uc774\uc810\uc744 \uc54c\uc544\ubcf4\uace0, \ubc38\ube0c\uac00 \uc5f4\ub9b0 \uc0c1\ud0dc\uc640 \ub2eb\ud78c \uc0c1\ud0dc\uac00 \uac01\uac01 \uc5b4\ub5a4 \uc758\ubbf8\ub97c \uc9c0\ub2c8\ub294\uc9c0 \uc774\ud574\ud574 \ubcf4\uc138\uc694.<\/p>","protected":false},"author":4,"featured_media":24127,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"Fail Open vs Fail Close Explained | Smart Safety by 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