Description

GE IS200TSVCH2A Servo Terminal Board

The GE IS200TSVCH2A, also cataloged as the IS200TSVC Servo Terminal Board, provides physical signal interfacing for electro-hydraulic servo valve control within the GE Mark VI Speedtronic turbine control system. The board processes analog servo command signals and LVDT feedback connections to execute closed-loop actuator positioning through dedicated servo channels.

Hardware Specifications

Parameter	Specification
Model	IS200TSVCH2A
Brand	GE
Origin	United States
Board Type	Servo Terminal Board
System Compatibility	Mark VI Speedtronic turbine control system
Signal Type	Analog servo control signals
Servo Channels	4 independent servo channels
Operating Voltage	24 VDC / 125 VDC
Output Voltage Range	-10 V to +10 V
Output Current	+/-100 mA per channel
Communication Interface	VMEbus / backplane bus
Weight	0.45 kg
Dimensions	200 mm x 150 mm x 35 mm
Operating Temp	-20 to +65 deg C
Power Consumption	Approx. 15 W

Industrial Control Signal Conditioning and Servo Interface

The IS200TSVCH2A integrates with the GE Mark VI Speedtronic architecture through backplane communication and dedicated terminal connections. The board supports analog servo command output, LVDT feedback signal processing, and electro-hydraulic actuator loop control.

The servo interface uses differential signal paths and signal conditioning circuits to reduce electrical noise influence in actuator feedback loops. The board supports servo valve current regulation through independent channels and provides connection points for turbine fuel valves, inlet guide vane actuators, and steam admission valve systems.

The module design supports GE turbine control configurations using redundant control architectures. Firmware flash compatibility and backplane bus communication functions allow integration with Mark VI controller assemblies.

Frequently Asked Questions

Q: What type of actuator signals does the IS200TSVCH2A process?
A: The board processes analog servo control signals for electro-hydraulic servo valves and interfaces with LVDT feedback devices for closed-loop positioning.

Q: How many servo control channels are available on the IS200TSVCH2A?
A: The module provides 4 independent servo channels for actuator control and feedback signal termination.

Q: Can the board be replaced during system operation?
A: Hot replacement depends on the Mark VI rack configuration and operating procedure. Servo loops should be placed in an appropriate maintenance state before module replacement.

Field Installation Guidelines

Install the IS200TSVCH2A in the designated Mark VI control rack location and verify correct terminal assignments before connecting field wiring. Use shielded twisted-pair cables for analog servo and feedback signals where required by the installation design.

Terminate cable shields according to the turbine control cabinet grounding practice to reduce EMI/RFI coupling. Separate low-level analog signal wiring from high-current power conductors and switching circuits. Verify actuator loop polarity, feedback direction, and terminal identification before energizing the control system.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems