Description
Product Introduction
GE IS200JPDMG1ADC is the JPDM (Jumper Power Distribution Module) card in GE’s Speedtronic Mark VI and Mark VIe turbine control systems, designed to accept 28 V DC from external converters and distribute it across three redundant power buses (R, S, T) to controllers, I/O packs, and terminal racks.innoplcsync+1
This 35 A-capable PDM card provides fused outputs for overload protection, supports the Power Diagnostic Pack (PPDA) via dual 50-pin ribbon connectors, and is rated for Class I, Division 2 hazardous environments, making it a core component in gas and steam turbine control cabinets.innoplcsync+1
Frequently Asked Questions
Q: Can I hot-swap the IS200JPDMG1ADC?
A: No. The JPDM is a passive power distribution card in the PDM chassis; it is not designed for hot-swap insertion. You must de-energize the PDM rack or isolate the affected power section before removal to avoid tripping the entire control system and to protect personnel from high-current DC bus connections.powerdcs+1
Q: Is the IS200JPDMG1ADC obsolete? Are there direct replacements?
A: Yes, the JPDM card is effectively obsolete in new GE production. Direct replacements are other JPDM variants (e.g., IS200JPDMG1ACC) or upgraded PDM boards in the same Mark VI/VIe family, but verify mechanical envelope, connector pinout, and current rating before swapping.innoplcsync+1
Q: Will I lose my turbine control program when replacing this board?
A: No. The IS200JPDMG1ADC is a passive power distribution module; it does not store control logic or parameters. Turbine control programs reside in the primary and secondary controllers (e.g., VCMI, VCMIH). However, always back up the Mark VIe project before any hardware intervention.powerdcs+1
Q: Are these units factory-new or refurbished?
A: Most available stock is New Surplus (original GE packaging, never installed) or tested used units with 12–36 month warranty. Genuine GE factory-new IS200JPDMG1ADC cards are rare. Request photos of packaging, revision labels, and serial numbers for audit.
