IS2020RKPSG2A GE Power Supply Module

• Brand
  GE
• Model
  IS2020RKPSG2A
• Product Name
  VME Rack Power Supply Module for Mark VI Turbine Control System
• Place of Origin
  United States
• HS Code
  8504401400
• Dimensions
  263mm × 138mm × 88mm
• Weight
  3.2kg (7lbs)
• Operating Temperature
  0℃ ~ +60℃
• Storage Temperature
  -20℃ ~ +70℃
• Power Supply
  24VDC
• Warranty
  12 month
• Product Status
  New and original

Backed by abundant in-stock inventory and nearly 20 years of industry experience, our company stands as a leading player in the industrial control sector.We offer an extensive range of industrial control products covering numerous models. Should you have any other requirements, please feel free to contact us, and we will respond to you promptly.

Our main brand:

1.ABB's module cards, touch screens, controllers, etc., such as PP846 touch screen, IGCT starting with 5SHY, PM starting controller, AI, DO starting input/output module, SP starting Bailey module, etc

2.GE's module card CPUs, such as VMIC starter, IS200, IS215, IS400, IS420 series, etc,

3.Emerson's card components and EPRO probes, Westinghouse 1C series, Honeywell CC series, Schneider 140 series, Envision full series, Bentley 3500 series, Rexroth motors and drives, and Foxboro small modules.

1.Basic Overview

Model: IS2020RKPSG2A

Device Category: VME Rack Power Supply Module

Applicable Platform: GE Speedtronic Mark VI Turbine Control System

Nominal Total Output Power: 400W

2.Input Specifications

Standard Primary Input Voltage: 125 VDC, fed from the system PDM power distribution module

Optional Low-Voltage Input Variant: 24 VDC

Input Connector: PS125/PS24 interface located on the module bottom

Built-in Protection Mechanisms: Overvoltage protection, undervoltage protection, and surge suppression circuits

3.Output Specifications

1. Standard VME Backplane Multi-DC Output

+5 VDC, ±12 VDC, ±15 VDC, +28 VDC

2. +28V Power Output Bank

5 independent local PSA +28V power output channels

1 dedicated remote extended +28V power output channel

4. Special Functional Output Terminals

PS335 Output: 335 VDC dedicated power supply for TRPG flame detection sensors

PSSTAT Output: Power status feedback signal for system operational fault diagnosis

5. Physical Output Connector Layout

Top-side ports: PSA & PSB, serving as main power distribution bus outputs

Bottom-side ports: PS335, PS28, PSSTAT

6.Auxiliary I/O & Functional Hardware

Manual Reset Switch: Front-panel toggle switch for fault manual reset

Status Indication: 3 LED indicators (Green, Yellow, Red), respectively indicating normal operation, pre-alarm warning, and hardware fault alarm status

Thermal Structure: Integrated finned metal heat sink for passive heat dissipation

1. Pre-Wiring Preparation

Disconnect the power supply of the entire VME rack and implement lockout-tagout safety procedures.

Verify that the module is fully seated and locked in the dedicated power slot on the right side of the Mark VI VME rack.

Fasten all terminal screws with a torque of 0.6 Nm; excessive tightening and loose connections are prohibited.

Route all wiring clear of heat sinks and ventilation openings to prevent airflow blockage.

2. Bottom Connector Wiring (Input and Special Output Interfaces)

PS125 / PS24 (Main DC Input Terminals, Bottom Left Area)

Standard setup: The PS125 port connects to the 125 VDC output of the system PDM power distribution module, with positive and negative polarities strictly observed.

Alternative low-voltage setup: The PS24 port is adopted for connection to an external 24 VDC power supply.

The module is equipped with reverse polarity protection, yet incorrect polarity will activate power supply lockout protection.

PS335 Terminal

It is wired to the TRPG flame detection board and provides constant 335 VDC dedicated power for flame sensors. Single independent wiring and isolated wiring harnesses are required.

PS28 Terminal

This remote extended +28 VDC output port is intended for external low-power field auxiliary devices, with adjustable internal jumpers:

Default jumper setting: PS28 is connected to the rack internal 28V bus, exclusively supplying power to internal rack components;

Isolated jumper setting: PS28 serves as an independent external power output for field-side equipment power supply.

PSSTAT Terminal

Two-core feedback wiring is adopted to link with the system DPU monitoring board, transmitting operational status signals including normal state, overvoltage and overcurrent faults.

3. Top Connector Wiring (Main Power Bus Output)

PSA Connector

Composed of 5 independent local +28 VDC output channels, connected to local I/O boards on the VME backplane to deliver operating power to field modules.

PSB Connector

Delivers composite multi-voltage bus outputs (+5VDC, ±12VDC, ±15VDC, +28VDC). Special cables connect this port to the main VME backplane bus to power all main control boards inside the rack.

4. Front Panel Auxiliary Components & Wiring Description

Reset Toggle Switch: No external wiring needed. It is manually toggled to reset locked power faults after power-off maintenance.

Three LED indicators are integrated into internal circuits without external wiring access: Green light stands for normal operation, yellow light for input power abnormality warning, red light for hardware fault alert.

5. Redundant Parallel Connection (Dual-Module Redundant Operation)

For two IS2020RKPSG2A modules running in redundant parallel mode:

The PS125/PS24 input terminals of both modules are connected in parallel to the identical 125VDC power source;

PSA and PSB outputs are commonly wired to the shared VME backplane bus;

PSSTAT signal wires are connected to the same monitoring channel to collect operating status of both power modules.

6. Wiring Verification and Power-On Inspection

Use a multimeter to inspect all circuits for short circuits, open circuits and polarity mistakes prior to power-on.

Implement staged power-on: energize the input power first, then test all output voltages to ensure compliance with rated specifications.

Confirm the green indicator stays steadily lit while yellow and red indicators remain off before official system commissioning.

Frequently Asked Questions (FAQ)

1.How fast will you reply to my inquiry?

We process all inquiries efficiently and will respond promptly once we receive your message.

2.Do you carry large inventory of industrial control parts?

We maintain massive ready stock of mainstream automation spare parts to shorten lead times.

3.Can you source discontinued or obsolete PLC & DCS modules?

Absolutely.
We specialize in sourcing hard-to-find, obsolete and out-of-production industrial control components.

4.Do you inspect goods before shipment?

Every product undergoes thorough inspection before packing and dispatch.

5.Can you ship orders worldwide?

We provide global shipping with flexible logistics for urgent and regular orders.

6.What payment methods are available?

We accept multiple secure payment options. Please contact our sales team for detailed terms.