GE IS200VSVOH1B VME Servo Card
Description:
IS200VSVOH1B is GE Mark V The Servo Control (VSVO) board controls four electro-hydraulic servo valves that actuate the steam/fuel valves. These four channels are usually divided between two servo terminal boards (TSVO or DSVO). Valve position is measured with linear variable differential transformers (LVDT). The loop control algorithm is run in the VSVO.
Three cables connect to VSVO on J5 plug on the front panel and the J3/J4 connectors on the VME rack. TSVO provides simplex signals through the JR1 connector, and fans out TMR signals to the JR1, JS1, and JT1 connectors. Plugs JD1
or JD2 are for external trips from the protection module.

Q&A:
1. How to install IS200VSVOH1B?
Firstly, the VME processor rack need to be power down.
Secondly, slide in the IS200VSVOH1B board, push the top and bottom levers in with your hands to seat its edge connectors.
At last, tighten the captive screws at the top and bottom of the front panel