Description
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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | IS220PSVOH1B |
| Functional Acronym | PSVO |
| Product Type | Servo Control I/O Pack |
| System Compatibility | GE Mark VIe / Mark VIeS |
| Servo Valve Outputs | 2 current outputs |
| LVDT Inputs | 8 |
| Pulse Rate Inputs | 2 |
| Associated Driver | Works with WSVO servo driver module |
| Communication | Dual RJ-45 Ethernet (IONet) |
| Terminal Connection | DC-62 pin connector to TSVO terminal board |
| Power | 28 V DC via terminal board |
4. Product Introduction (Anti-Template)
The GE IS220PSVOH1B is a Servo Control I/O Pack (PSVO) designed for the Mark VIe and Mark VIeS turbine control systems. It provides the electrical interface between one or two I/O Ethernet networks and a TSVO servo terminal board. The pack handles the signal conditioning and data exchange required for precise servo valve position control.
It supports two servo valve current outputs, eight LVDT position feedback inputs, and two pulse-rate inputs. In operation it works in conjunction with an adjacent WSVO servo driver module to close up to two servo valve position loops, with output currents typically in the 10–120 mA range depending on the configuration. Power is supplied through the terminal board, communication occurs over dual RJ-45 Ethernet ports, and the physical connection to the terminal board is made via a DC-62 pin connector. Front-panel LEDs provide basic status indication. The module is used for critical actuator control functions on gas and steam turbines.
IS220PSVOH1B
IS220PSVOH1B
IS220PSVOH1B
IS220PSVOH1B
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full part number (IS220PSVOH1B), revision level, connector condition, and any conformal coating status. Photograph all labels.
- Functional Testing – Mount on a compatible TSVO terminal board where possible, apply power, and verify status LEDs and Ethernet link. Full validation requires the host controller and servo/LVDT hardware.
- QA & Packaging – Protect the DC-62 and Ethernet connectors, clean the module, and pack in anti-static protective packaging.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial turbine control I/O modules. Packaging must protect against electrostatic discharge; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Terminal Board Matching – The pack must be paired with the correct TSVO servo terminal board. Incorrect pairing prevents proper LVDT and servo signal conditioning.
WSVO Driver – Confirm the presence and compatibility of the adjacent WSVO servo driver module required for closed-loop position control.
ControlST Version – Certain ControlST software versions require specific I/O upgrades before the pack can be used. Verify software compatibility before installation.
Servo Current Limits – Do not exceed the configured current range for the servo valve outputs. Incorrect settings can damage the valve or the pack.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified IS220PSVOH1B?
As a specialized Mark VIe servo control pack, availability depends on surplus stock. Typical lead time after verification is 5–20 business days plus standard shipping.
What is the primary function of this module?
It is a Servo Control I/O Pack that interfaces a TSVO servo terminal board with the Mark VIe IONet network for servo valve position control.
How many LVDT inputs does it support?
8 LVDT inputs.
What other signals does it handle?
2 servo valve current outputs and 2 pulse-rate inputs.
What system is it used with?
GE Mark VIe and Mark VIeS turbine control systems.
Is the module still in production?
Mark VIe remains an active platform. Specific PSVO revisions are available through GE channels and surplus specialists depending on current production status.
What should be confirmed before ordering a replacement?
Exact part number and revision (IS220PSVOH1B), compatible TSVO terminal board, presence of the WSVO driver, ControlST software version, and servo/LVDT configuration requirements.
