{"product_id":"is200erddh1a-ge-exciter-regulator-dynamics-discharge-board","title":"IS200ERDDH1A | GE | Exciter Regulator Dynamics Discharge Board","description":"\u003ch2\u003eGE IS200ERDDH1A Exciter Regulator Dynamics Discharge Board\u003c\/h2\u003e\n\u003cp\u003eConfigured for dynamic discharge control in EX2100 excitation systems, the \u003cstrong\u003eGE IS200ERDDH1A\u003c\/strong\u003e (\u003cstrong\u003eIS200ERDDH1A\u003c\/strong\u003e Dynamic Discharge Board) provides IGBT gate‑drive regulation, DC‑link overvoltage discharge, and coordinated interlock behavior across simplex and redundant regulator architectures.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eIS200ERDDH1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eGE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e0.36 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified (apply EX2100 cabinet limits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eEX2100 \/ Mark VI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eExciter Regulator Dynamic Discharge Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePrimary Function\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eIGBT gate‑drive control and DC‑link dynamic discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eMounting (Simplex)\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eERBP backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eMounting (Redundant)\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eERBP (M1) and ERRB (M2\/C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInterlock Control\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eK3 charging relay (simplex), K41 de‑excitation relay (redundant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eForm Factor\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eSingle‑slot, double‑height (6U) PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTemperature Input\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e1 RTD channel, 0–140 deg C scaled to 0–10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eERIO, ERSC, ERRR (redundant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eRepair Time\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e3–5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity Licences\u003c\/h3\u003e\n\u003cp\u003eAs a GE industrial control module, the IS200ERDDH1A aligns with deterministic EX2100 timing constraints for IGBT firing and DC‑link discharge. The board’s dual‑path firing logic supports synchronous propagation windows across ERIO and ERSC modules. Its 6U form factor and redundant mounting positions maintain compatibility with \u003cstrong\u003efirmware flash compatibility\u003c\/strong\u003e for EX2100 controllers. When integrated into plant‑wide PLC\/DCS networks, discharge‑command propagation preserves deterministic behavior across \u003cstrong\u003eProfinet \/ EtherNet\/IP deterministic networks\u003c\/strong\u003e and aligns with cabinet‑level \u003cstrong\u003eI\/O density scaling\u003c\/strong\u003e for excitation systems.\u003c\/p\u003e\n\u003ch3\u003eFunctional Description\u003c\/h3\u003e\n\u003cp\u003eThe IS200ERDDH1A performs dynamic discharge of the DC‑link using controlled IGBT gate‑drive signals. Key operational behaviors include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIGBT Firing Control\u003c\/strong\u003e Two firing commands from the EXTB board activate redundant firing circuits. The ERDD generates a high‑frequency square‑wave gate signal to initiate IGBT conduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf‑Firing Circuit\u003c\/strong\u003e If commanded firing is delayed or unavailable, a break‑over diode network triggers the gate based on SCR\/IGBT anode voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC‑Link Overvoltage Discharge\u003c\/strong\u003e Excessive DC‑link voltage is dissipated through controlled IGBT conduction, preventing regulator overvoltage conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Tracking\u003c\/strong\u003e An onboard RTD channel provides temperature feedback scaled to 0–10 VDC for thermal monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplex and Redundant Operation\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplex:\u003c\/strong\u003e One ERDD in ERBP, interfacing with ERIO and ERSC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundant:\u003c\/strong\u003e Two ERDD boards (M1 and M2\/C), interfacing with ERIO, ERSC, and ERRR for relay‑based redundancy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the function of the IS200ERDDH1A?\u003c\/strong\u003e A: It provides dynamic discharge of the DC‑link and controls IGBT gate‑drive behavior in EX2100 excitation systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the board operate in redundant configurations?\u003c\/strong\u003e A: Yes. It supports both simplex and redundant architectures using ERBP and ERRB backplanes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the board include temperature monitoring?\u003c\/strong\u003e A: Yes. One RTD input scaled to 0–10 VDC provides thermal feedback.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDe‑energize the excitation cabinet before handling the board.\u003c\/li\u003e\n\u003cli\u003eVerify correct seating in ERBP or ERRB backplanes depending on simplex or redundant configuration.\u003c\/li\u003e\n\u003cli\u003eMaintain proper routing of firing‑command cables from EXTB to avoid noise coupling.\u003c\/li\u003e\n\u003cli\u003eInspect RTD wiring for correct polarity and shield termination.\u003c\/li\u003e\n\u003cli\u003eConfirm interlock relay wiring (K3 or K41) is correctly landed before energizing.\u003c\/li\u003e\n\u003cli\u003eUse insulated probes when accessing test points to avoid accidental discharge.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":48144139747518,"sku":"IS200ERDDH1A","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/general-electric-is200emioh1afb-exciter-main-i-o-card-paw0uqnf52l.png?v=1759055629","url":"https:\/\/www.autooiltech.com\/products\/is200erddh1a-ge-exciter-regulator-dynamics-discharge-board","provider":"AutoOilTech Limited","version":"1.0","type":"link"}