GE IS220PSVOH1A Servo Control I/O pack
Description：
IS220PSVOH1A is part of GE MKVIe series PSVO Servo Control I/O module. It is can be used in hazardous locations. The Ambient Temperature Rating is from -30℃ to +65℃. The PSVP servo pack WSVO servo driver and the SSVP terminal board provide anelectro-hydraulic control for both new and retrofit steam turbine applications. The followingare salient features for this product:
Six position sensor nput channels
Iwo servo outputs with a parallel feature allowing isolation of a failure in electronics
Iwo excitation outputs with a hot-backup redundancy feature for single position sensorwalves
A pulse rate input optimized for turbine speed feedback similar to the PTUR and PPROpulse rate inputs
The product firmware supports single, minimum-select or maximum-select dual, and mid-selecttriple position sensor input position regulators. The single and maximmum-select dual pilotcylinder position regulators are available. The product does not support the flowrate regulatorsfor liquid-fuel control or any of the position regulators supporting the land and marine (LM)gas turbines
Input to the pack 1s through dual RJ-45 Ethernet connectors, and 28 V dc power is suppliedrom the terminal board. The PSVP output 1s through a 62-pin connector that connects directly with the associated terminal board connector. Visual diagnostics are provided through indicator light emitting diodes (LEDs).