{"product_id":"omron-kp100l-ac-power-board-with-e5-1-error-repair-kit-ac-power-board-for-omron-kp100l-kp125l-kp150l-photovoltaic-inverters","title":"OMRON KP100L AC Power Board with E5-1 Error Repair Kit – AC Power Board for OMRON KP100L \/ KP125L \/ KP150L Photovoltaic Inverters","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"3f3ef2ee-1582-4a3e-979d-64a9fa9ebcd1\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"3f3ef2ee-1582-4a3e-979d-64a9fa9ebcd1\" data-turn-id-container=\"3f3ef2ee-1582-4a3e-979d-64a9fa9ebcd1\" data-testid=\"conversation-turn-314\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"f2a7ab5c-046e-4137-8f73-24a7be7bedde\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"160\" data-end=\"365\"\u003eOriginal OMRON AC Power Board designed for photovoltaic inverters of the KP Series, supplied with a dedicated repair kit specifically intended to resolve the common \u003cstrong data-start=\"325\" data-end=\"364\"\u003eE5-1 Relay Error (Grid Relay Error)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"367\" data-end=\"599\"\u003eThis board manages the inverter’s connection to the electrical grid, controls the safety relays, performs AC filtering functions, and supervises all protection mechanisms required for compliant grid-connected photovoltaic operation.\u003c\/p\u003e\n\u003cp data-start=\"601\" data-end=\"880\"\u003eThe included repair kit contains the primary power relays and wear-prone components that commonly cause inverter shutdowns associated with the E5-1 error. Replacing these components often restores full functionality without the need to replace the entire inverter or power board.\u003c\/p\u003e\n\u003ch2 data-start=\"882\" data-end=\"901\"\u003e🔄 Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"903\" data-end=\"956\"\u003eCompatible with the following photovoltaic inverters:\u003c\/p\u003e\n\u003cul data-start=\"958\" data-end=\"1002\"\u003e\n\u003cli data-start=\"958\" data-end=\"972\"\u003eOMRON KP100L\u003c\/li\u003e\n\u003cli data-start=\"973\" data-end=\"987\"\u003eOMRON KP125L\u003c\/li\u003e\n\u003cli data-start=\"988\" data-end=\"1002\"\u003eOMRON KP150L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1004\" data-end=\"1034\"\u003e⚙️ Technical Specifications\u003c\/h2\u003e\n\u003cul data-start=\"1036\" data-end=\"1421\"\u003e\n\u003cli data-start=\"1036\" data-end=\"1066\"\u003eProduct Type: AC Power Board\u003c\/li\u003e\n\u003cli data-start=\"1067\" data-end=\"1122\"\u003eApplication: OMRON Three-Phase Photovoltaic Inverters\u003c\/li\u003e\n\u003cli data-start=\"1123\" data-end=\"1151\"\u003eGrid connection management\u003c\/li\u003e\n\u003cli data-start=\"1152\" data-end=\"1189\"\u003eAnti-islanding protection circuitry\u003c\/li\u003e\n\u003cli data-start=\"1190\" data-end=\"1219\"\u003eHigh-capacity safety relays\u003c\/li\u003e\n\u003cli data-start=\"1220\" data-end=\"1259\"\u003eHigh-reliability AC filter capacitors\u003c\/li\u003e\n\u003cli data-start=\"1260\" data-end=\"1310\"\u003eRelay status monitoring and contact verification\u003c\/li\u003e\n\u003cli data-start=\"1311\" data-end=\"1351\"\u003eIntegrated inverter diagnostic support\u003c\/li\u003e\n\u003cli data-start=\"1352\" data-end=\"1388\"\u003eE5-1 repair component kit included\u003c\/li\u003e\n\u003cli data-start=\"1389\" data-end=\"1421\"\u003eInternal inverter installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1423\" data-end=\"1443\"\u003e🔧 Main Functions\u003c\/h2\u003e\n\u003cul data-start=\"1445\" data-end=\"1807\"\u003e\n\u003cli data-start=\"1445\" data-end=\"1493\"\u003eConnection of the inverter to the utility grid\u003c\/li\u003e\n\u003cli data-start=\"1494\" data-end=\"1543\"\u003eAutomatic disconnection during fault conditions\u003c\/li\u003e\n\u003cli data-start=\"1544\" data-end=\"1584\"\u003eGrid relay monitoring and verification\u003c\/li\u003e\n\u003cli data-start=\"1585\" data-end=\"1622\"\u003eAC electrical protection management\u003c\/li\u003e\n\u003cli data-start=\"1623\" data-end=\"1653\"\u003eGrid synchronization control\u003c\/li\u003e\n\u003cli data-start=\"1654\" data-end=\"1688\"\u003eAnti-islanding operation support\u003c\/li\u003e\n\u003cli data-start=\"1689\" data-end=\"1723\"\u003eAC noise and transient filtering\u003c\/li\u003e\n\u003cli data-start=\"1724\" data-end=\"1762\"\u003eContinuous safety circuit monitoring\u003c\/li\u003e\n\u003cli data-start=\"1763\" data-end=\"1807\"\u003eRelay self-test and verification functions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1809\" data-end=\"1836\"\u003e🔌 Purpose and Operation\u003c\/h2\u003e\n\u003cp data-start=\"1838\" data-end=\"2047\"\u003eThe AC Power Board serves as the interface between the inverter and the electrical grid. It receives power processed by the inverter's conversion stages and manages its safe injection into the utility network.\u003c\/p\u003e\n\u003cp data-start=\"2049\" data-end=\"2108\"\u003eIt is one of the most important components responsible for:\u003c\/p\u003e\n\u003cul data-start=\"2110\" data-end=\"2247\"\u003e\n\u003cli data-start=\"2110\" data-end=\"2138\"\u003ePhotovoltaic energy export\u003c\/li\u003e\n\u003cli data-start=\"2139\" data-end=\"2161\"\u003eGrid synchronization\u003c\/li\u003e\n\u003cli data-start=\"2162\" data-end=\"2181\"\u003eElectrical safety\u003c\/li\u003e\n\u003cli data-start=\"2182\" data-end=\"2203\"\u003eInverter protection\u003c\/li\u003e\n\u003cli data-start=\"2204\" data-end=\"2247\"\u003eCompliance with grid connection standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"2249\" data-end=\"2286\"\u003e🧩 Role Within the Inverter System\u003c\/h2\u003e\n\u003cp data-start=\"2288\" data-end=\"2368\"\u003eWithin the photovoltaic system, the AC Power Board performs the following tasks:\u003c\/p\u003e\n\u003cul data-start=\"2370\" data-end=\"2657\"\u003e\n\u003cli data-start=\"2370\" data-end=\"2413\"\u003eReceives power generated by the inverter.\u003c\/li\u003e\n\u003cli data-start=\"2414\" data-end=\"2451\"\u003eVerifies grid presence and quality.\u003c\/li\u003e\n\u003cli data-start=\"2452\" data-end=\"2489\"\u003eControls the grid interface relays.\u003c\/li\u003e\n\u003cli data-start=\"2490\" data-end=\"2522\"\u003eExecutes startup safety tests.\u003c\/li\u003e\n\u003cli data-start=\"2523\" data-end=\"2570\"\u003eConnects the inverter to the utility network.\u003c\/li\u003e\n\u003cli data-start=\"2571\" data-end=\"2657\"\u003eInstantly disconnects the system in case of faults or abnormal operating conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2659\" data-end=\"2725\"\u003eWithout this board, the inverter cannot export energy to the grid.\u003c\/p\u003e\n\u003ch2 data-start=\"2727\" data-end=\"2762\"\u003e⚠️ Typical Failures and Symptoms\u003c\/h2\u003e\n\u003ch3 data-start=\"2764\" data-end=\"2784\"\u003eWorn Grid Relays\u003c\/h3\u003e\n\u003cp data-start=\"2786\" data-end=\"2795\"\u003eSymptoms:\u003c\/p\u003e\n\u003cp data-start=\"2797\" data-end=\"2871\"\u003e❗ Relay contact deterioration\u003cbr data-start=\"2826\" data-end=\"2829\"\u003e❗ Grid connection failures\u003cbr data-start=\"2855\" data-end=\"2858\"\u003e❗ E5-1 errors\u003c\/p\u003e\n\u003ch3 data-start=\"2873\" data-end=\"2898\"\u003eWelded Relay Contacts\u003c\/h3\u003e\n\u003cp data-start=\"2900\" data-end=\"2909\"\u003eSymptoms:\u003c\/p\u003e\n\u003cp data-start=\"2911\" data-end=\"2982\"\u003e❗ Safety self-test failure\u003cbr data-start=\"2937\" data-end=\"2940\"\u003e❗ Relay stuck closed\u003cbr data-start=\"2960\" data-end=\"2963\"\u003e❗ Grid relay alarms\u003c\/p\u003e\n\u003ch3 data-start=\"2984\" data-end=\"3007\"\u003eDegraded Capacitors\u003c\/h3\u003e\n\u003cp data-start=\"3009\" data-end=\"3018\"\u003eSymptoms:\u003c\/p\u003e\n\u003cp data-start=\"3020\" data-end=\"3090\"\u003e❗ Electrical instability\u003cbr data-start=\"3044\" data-end=\"3047\"\u003e❗ Random inverter faults\u003cbr data-start=\"3071\" data-end=\"3074\"\u003e❗ Startup issues\u003c\/p\u003e\n\u003ch3 data-start=\"3092\" data-end=\"3117\"\u003eOverheated Components\u003c\/h3\u003e\n\u003cp data-start=\"3119\" data-end=\"3128\"\u003eSymptoms:\u003c\/p\u003e\n\u003cp data-start=\"3130\" data-end=\"3208\"\u003e❗ Burn marks or discoloration\u003cbr data-start=\"3159\" data-end=\"3162\"\u003e❗ Reduced reliability\u003cbr data-start=\"3183\" data-end=\"3186\"\u003e❗ Unexpected shutdowns\u003c\/p\u003e\n\u003ch3 data-start=\"3210\" data-end=\"3234\"\u003eOxidized Connections\u003c\/h3\u003e\n\u003cp data-start=\"3236\" data-end=\"3245\"\u003eSymptoms:\u003c\/p\u003e\n\u003cp data-start=\"3247\" data-end=\"3331\"\u003e❗ Intermittent operation\u003cbr data-start=\"3271\" data-end=\"3274\"\u003e❗ False contact detection\u003cbr data-start=\"3299\" data-end=\"3302\"\u003e❗ Communication interruptions\u003c\/p\u003e\n\u003ch3 data-start=\"3333\" data-end=\"3371\"\u003eRelay Verification Circuit Failure\u003c\/h3\u003e\n\u003cp data-start=\"3373\" data-end=\"3382\"\u003eSymptoms:\u003c\/p\u003e\n\u003cp data-start=\"3384\" data-end=\"3473\"\u003e❗ Startup test failure\u003cbr data-start=\"3406\" data-end=\"3409\"\u003e❗ Persistent relay alarms\u003cbr data-start=\"3434\" data-end=\"3437\"\u003e❗ Inverter unable to connect to grid\u003c\/p\u003e\n\u003ch2 data-start=\"3475\" data-end=\"3537\"\u003e🚨 Errors Potentially Resolved with the Included Repair Kit\u003c\/h2\u003e\n\u003cp data-start=\"3539\" data-end=\"3623\"\u003eReplacing the relays and associated components included in the kit may help resolve:\u003c\/p\u003e\n\u003cul data-start=\"3625\" data-end=\"3839\"\u003e\n\u003cli data-start=\"3625\" data-end=\"3643\"\u003eE5-1 Relay Error\u003c\/li\u003e\n\u003cli data-start=\"3644\" data-end=\"3662\"\u003eGrid Relay Error\u003c\/li\u003e\n\u003cli data-start=\"3663\" data-end=\"3682\"\u003eRelay Check Error\u003c\/li\u003e\n\u003cli data-start=\"3683\" data-end=\"3709\"\u003eRelay Verification Error\u003c\/li\u003e\n\u003cli data-start=\"3710\" data-end=\"3726\"\u003eAC Relay Fault\u003c\/li\u003e\n\u003cli data-start=\"3727\" data-end=\"3750\"\u003eGrid Connection Fault\u003c\/li\u003e\n\u003cli data-start=\"3751\" data-end=\"3772\"\u003eMains Relay Failure\u003c\/li\u003e\n\u003cli data-start=\"3773\" data-end=\"3795\"\u003eAnti-Islanding Fault\u003c\/li\u003e\n\u003cli data-start=\"3796\" data-end=\"3817\"\u003eStartup Relay Error\u003c\/li\u003e\n\u003cli data-start=\"3818\" data-end=\"3839\"\u003eRelay Contact Error\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3841\" data-end=\"3902\"\u003eError names may vary depending on inverter firmware revision.\u003c\/p\u003e\n\u003ch2 data-start=\"3904\" data-end=\"3922\"\u003e🛠 Applications\u003c\/h2\u003e\n\u003cul data-start=\"3924\" data-end=\"4194\"\u003e\n\u003cli data-start=\"3924\" data-end=\"3974\"\u003eRepair of OMRON KP Series photovoltaic inverters\u003c\/li\u003e\n\u003cli data-start=\"3975\" data-end=\"4005\"\u003eAC Power Board refurbishment\u003c\/li\u003e\n\u003cli data-start=\"4006\" data-end=\"4039\"\u003eResolution of E5-1 relay faults\u003c\/li\u003e\n\u003cli data-start=\"4040\" data-end=\"4073\"\u003ePreventive inverter maintenance\u003c\/li\u003e\n\u003cli data-start=\"4074\" data-end=\"4114\"\u003eUtility-scale solar inverter servicing\u003c\/li\u003e\n\u003cli data-start=\"4115\" data-end=\"4155\"\u003eIndustrial photovoltaic system repairs\u003c\/li\u003e\n\u003cli data-start=\"4156\" data-end=\"4194\"\u003eSpecialized inverter service centers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"4196\" data-end=\"4227\"\u003e✅ Benefits of the Repair Kit\u003c\/h2\u003e\n\u003cul data-start=\"4229\" data-end=\"4556\"\u003e\n\u003cli data-start=\"4229\" data-end=\"4271\"\u003eDedicated solution for E5-1 relay errors\u003c\/li\u003e\n\u003cli data-start=\"4272\" data-end=\"4299\"\u003eReduced maintenance costs\u003c\/li\u003e\n\u003cli data-start=\"4300\" data-end=\"4348\"\u003eAvoids replacement of the complete power board\u003c\/li\u003e\n\u003cli data-start=\"4349\" data-end=\"4376\"\u003eFast inverter restoration\u003c\/li\u003e\n\u003cli data-start=\"4377\" data-end=\"4428\"\u003eComponents selected for photovoltaic applications\u003c\/li\u003e\n\u003cli data-start=\"4429\" data-end=\"4483\"\u003eIdeal for maintenance technicians and repair centers\u003c\/li\u003e\n\u003cli data-start=\"4484\" data-end=\"4515\"\u003eExtends inverter service life\u003c\/li\u003e\n\u003cli data-start=\"4516\" data-end=\"4556\"\u003eMinimizes photovoltaic system downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"4558\" data-end=\"4581\"\u003e📦 Product Condition\u003c\/h2\u003e\n\u003cp data-start=\"4583\" data-end=\"4827\"\u003eOMRON AC Power Board supplied with a professional repair kit specifically designed for E5-1 relay-related faults. Intended for maintenance, refurbishment, and repair of OMRON KP Series photovoltaic inverters rated at 100 kW, 125 kW, and 150 kW.\u003c\/p\u003e\n\u003cp data-start=\"4829\" data-end=\"4933\"\u003eSuitable for both preventive and corrective maintenance of grid relay circuits and AC connection stages.\u003c\/p\u003e\n\u003ch2 data-start=\"4935\" data-end=\"4948\"\u003e🟢 Summary\u003c\/h2\u003e\n\u003cp data-start=\"4950\" data-end=\"5336\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe \u003cstrong data-start=\"4954\" data-end=\"5012\"\u003eOMRON KP100L AC Power Board with E5-1 Error Repair Kit\u003c\/strong\u003e is a professional repair solution for OMRON KP100L, KP125L, and KP150L photovoltaic inverters. Designed to address common relay-related failures, including the E5-1 Grid Relay Error, this package provides an effective and cost-efficient method to restore inverter operation, improve reliability, and reduce system downtime.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Green Energy","offers":[{"title":"Default Title","offer_id":54039850778957,"sku":null,"price":460.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/3274\/3245\/files\/MG_6060.jpg?v=1780669898","url":"https:\/\/greenenergy-repair.com\/el\/products\/omron-kp100l-ac-power-board-with-e5-1-error-repair-kit-ac-power-board-for-omron-kp100l-kp125l-kp150l-photovoltaic-inverters","provider":"Green Energy","version":"1.0","type":"link"}