GE VMIVME2170A 32-Channel Opto-Isolated Digital Output Board

GE VMIVME2170A is a double-height VMEbus optically isolated digital output board developed by VMIC (GE Intelligent Platforms). It provides 32 opto-coupled output channels, used to drive relays, solenoids and field actuators in VME-based turbine control and real-time industrial control systems, isolating field high-voltage interference from the VME backplane.

This board supports configurable sink/source logic, two output current grades of 2.5mA and 300mA, and polarity inversion selection via DIP switch. It is a classic discontinued spare, commonly matched with VMIVME1150 DI board for complete interlock control rack maintenance.

Data Parameters

• 1. Brand: GE (VMIC)

• 2. Model: VMIVME2170A

• 3. Product Type: 32-Channel Opto-Isolated DO VME Board

• 4. Application: VMEbus rack, turbine & real-time interlock control system

• 5. Feature: 32 isolated outputs, 1kV continuous isolation, 6kV pulse withstand

• 6. Characteristic: 2.5mA / 300mA selectable, sink/source configurable

• 7. Bus Interface: VMEbus short I/O space, D08/D16 data transfer

• 8. Form Factor: 6U double height Eurocard

• 9. Max Output Voltage: 30VDC

• 10. Operating Temperature: -20℃ ~ +60℃

Core Functions

• 1. Convert VME controller logic commands into isolated switching signals for field actuators.

• 2. Isolate ground loop and high voltage noise to protect VME backplane and CPU card.

• 3. Support positive/negative logic setting and pull-up resistor configuration on site.

• 4. Control solenoid valves, contactors and relay coils for sequence and interlock logic.

• 5. Cooperate with VMIVME1150 DI board to build complete digital input/output control group.

Application Scenarios

• 1. GE gas and steam turbine VME control cabinet interlock output rack.

• 2. Industrial simulation test system and real-time hardware-in-loop equipment.

• 3. Power generation unit auxiliary control and protection logic retrofit.

• 4. Legacy VMIC VME platform overhaul and spare parts replacement.

• 5. Matching digital output spare for VMIVME1150 DI rack system.

FAQ

• 1. Q: What is GE VMIVME2170A?
      A: It is a 32-channel optically isolated digital output VME board for VMIC VME control racks.

• 2. Q: What is the difference between VMIVME2170A and VMIVME1150?
      A: VMIVME2170A is digital output board, VMIVME1150 is digital input acquisition board.

• 3. Q: Can it work without VME backplane?
      A: No, it must be installed on standard VME backplane with VME master controller.