IS220PSVPH1A - Servo Control I/O Module

SPECIFICATIONS:

Part Number: IS220PSVPH1A
Manufacturer: General Electric
Series: Mark VIe
Product Type: Servo Control I/O Module
Technology: Surface Mount
Common Mode Voltage Range: ±5 V
Dimensions: 11.00 x 9.00 x 3.00
Operating temperature: 0 to 60 °C
No.of Analog Voltage Inputs: 6
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States
Manual: GEH-6721_Vol_II

FUNCTIONAL DESCRIPTION:

IS220PSVPH1A is a Servo Control I/O Module manufactured and designed by General Electric as part of the VIe Series used in GE Distributed Control Systems. The PSVP servo I/O pack, WSVO servo driver, and the SSVP terminal board provide an electro-hydraulic control for both new and retrofit steam turbine applications. The product firmware supports single, minimum-select, maximum-select dual, and mid-select triple-position sensor input position regulators. The single and maximum-select dual pilot cylinder position regulators are available. The product does not support the flowrate regulators for liquid-fuel control or any of the position regulators supporting the land and marine (LM) gas turbines. The following are salient features of this product:

• Six position sensor input channels
• Two servo outputs with a parallel feature allow isolation of a failure in electronics
• Two excitation outputs with a hot-backup redundancy feature for single-position sensor valves
• A pulse rate input optimized for turbine speed feedback similar to the PTUR and PPRO pulse rate inputs
• Simplex uses one PSVP, WSVO, and SSVP set with one or two network connections on each I/O pack.
• Dual uses two PSVP, WSVO, and SSVP sets with one network connection on each I/O pack.
• TMR uses three PSVP, WSVO, and SSVP sets with one network connection on each I/O pack. Input to the PSVP is through dual RJ-45 Ethernet connectors, and 28 V DC power is supplied from the terminal board. The output is through a 62-pin connector that connects directly with the associated terminal board connector. Visual diagnostics are provided through indicator light-emitting diodes (LEDs).

INSTALLATION:

Mechanically secure the I/O pack using the threaded inserts adjacent to the Ethernet ports. The inserts connect with a mounting bracket specific to the terminal board type. The bracket location should be adjusted such that there is no right angle force applied to the 62-pin connector between the I/O pack and the terminal board. The adjustment should only be required once in the service life of the product.

• Plug the WSVO servo driver assembly into the J2 48-pin connector and secure it with the four screws.
• Plug in one or two Ethernet cables depending on the system configuration. The pack operates over either port. If dual connections are used, the standard practice is to hook
• ENET1 to the network associated with the R controller; however, the PSVP is not sensitive to Ethernet connections and negotiates proper operation over either port.
• Plug the 28 V power into the SSVP P28IN 2-pin connector. Be sure the high is connected to pin 1 and the low is connected to pin 2.
• If PSVP redundancy is simple, insert the plug for suicide protection from the protection module.
• If PSVP redundancy is dual, plug the RJ-45 connector from SSVP_R JLA to SSVP_S JUA, and from SSVP_R JLB to SSVP_S JUB.
• Apply power to the PSVP subassembly using the SW1 power switch on the SSVP. Check the indicator lights on the PSVP.

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FREQUENTLY ASKED QUESTIONS:

What is the primary function of the Servo Control I/O Module?

The Servo Control I/O Module is an essential component within General Electric’s Mark VIe Series, designed for electro-hydraulic control in steam turbine applications. It processes multiple position sensor inputs and regulates servo outputs to ensure precise control of turbine components.

How does the module handle position sensor inputs?

This module is equipped with six analog voltage inputs for position sensors, allowing it to monitor and adjust turbine control elements in real-time. It supports various types of position regulators, including single, minimum-select, maximum-select dual, and mid-select triple-position input regulators.

What are the output capabilities of the Servo Control I/O Module?

The module features two servo outputs, designed with parallel isolation to prevent failures from affecting the overall system. It also provides two excitation outputs that include a hot-backup redundancy feature to ensure the continuous operation of single-position sensor valves.