IS420EPDMG3A | GE Electric dual-redundant power supply module
Product Function
The IS420EPDMG3A is a dual-redundant power supply module for GE’s Mark VIe turbine control systems. It delivers conditioned DC power (5V, ±15V) to I/O modules and controllers within the rack, featuring hot-swappable redundancy, real-time fault diagnostics, and voltage monitoring to ensure uninterrupted critical operations.
Product Specifications & Parameters
Category
|
Specification
|
---|---|
Manufacturer
|
GE Digital
|
Series
|
Mark VIe Turbine Control System
|
Type
|
Power Supply / Distribution Module
|
Form Factor
|
VME-9U (mounts in IS200VCCCH1D chassis)
|
Input Voltage
|
24V DC nominal (18–36V DC range)
|
Output Voltages
|
+5V DC (12A max), +15V DC (1A), -15V DC (1A)
|
Redundancy
|
Dual-module N+1 (supports hot-swap replacement)
|
Efficiency
|
>85% @ full load
|
Ripple Noise
|
<50mV p-p (±15V), <100mV p-p (+5V)
|
Overload Protection
|
Auto-reset for +5V; latch-off for ±15V
|
Operating Temp.
|
-40°C to +70°C
|
Cooling
|
Convection / forced air (via system fans)
|
MTBF
|
>250,000 hours @ 40°C
|
Certifications
|
UL 508, CE, IEC 61000-6-2/4, RoHS, ATEX/IECEx Zone 2
|
Connection
|
Backplane-powered; field input via removable 4-pin terminal
|
Series Information
Part of GE’s Mark VIe Power Distribution Series – interoperable with:
- Controllers: IS420UCSxH1x
- Chassis: IS200VCCCH1D, IS200VCRCH1B
- Companion Modules:
- IS420PDIAH1A (Analog Input)
- IS420ESWBH3A (Discrete I/O)
- IS420YDIAS1A (RTD/Thermocouple Input)
Key Features
- Redundant Operation: Automatic failover if primary PSU fails.
- Live Insertion: Hot-swap without rack shutdown.
- Voltage Monitoring: Real-time ±2% accuracy via ToolboxST™.
- Diagnostic LEDs: Per-module status (green=OK, red=fault, amber=standby).
- Surge Protection: 40V DC transient withstand (IEC 61000-4-5).
- Load Balancing: Dynamic current sharing between modules.
Role & Purpose
- Power Conditioning: Filters noise for sensitive control electronics.
- System Reliability: Prevents downtime via redundancy.
- Voltage Stabilization: Ensures ±1% regulation under load swings.
- Fault Reporting: Alerts for undervoltage/overvoltage via controller.
Applications & Use Cases
Industry
|
Application
|
---|---|
Power Plants
|
Gas/steam turbine control cabinets
|
Compressor Stations
|
Critical oil & gas pipeline monitoring systems
|
Marine Propulsion
|
Shipboard turbine control racks
|
Industrial Drives
|
High-power motor control centers (MCCs)
|
Hydroelectric
|
Dam gate control systems
|
Cogeneration
|
Combined heat/power (CHP) facility controls
|
Technical Notes
- Wiring:
- Field Input: TB1 (24V+: pins 1/2, 24V-: pins 3/4)
- Shield: Chassis ground screw (front panel)
- Status Indicators:
- MOD OK (Green): Normal operation
- PWR FLT (Red): Overload/short circuit
- STBY (Amber): Redundant module in standby
- Redundancy Rules:
- Primary module powers rack; secondary activates if primary voltage drops 10%.
- Load imbalance >5% triggers alarm.
- Safety:
- Isolation: 1500V AC input-to-output
- Not for SIL applications (non-safety-rated).
Installation Criticals:
- Max. 2 modules per VME chassis (redundant pair).
- Input wiring: 14–16 AWG twisted pair (max 30m from source).
- Derating: Reduce load by 2.5%/°C above 50°C ambient.
Typical Power Distribution
Mark VIe Rack Configuration:
Slot 1 : IS420EPDMG3A (Primary PSU)
Slot 2 : IS420EPDMG3A (Redundant PSU)
Slot 3 : IS420UCSAH1A (Controller)
Slots 4-10: I/O Modules (e.g., IS420PDIAH1A, IS420ESWBH3A)
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