IS220PSVOH1B – GE Mark VIe Servo Interface I/O Pack
Product at a Glance
IS220PSVOH1B is a servo interface I/O pack from General Electric for Mark VIe control systems.
It links one or two I/O Ethernet networks to a TSVO servo terminal board.
The pack uses the WSVO servo driver module to manage two servo valve position loops.
On‑board LEDs show network status (ENet1/ENet2), power, attention, and enable signals (ENA1/2).
An infrared port is present but not active in this version.
Core Technical Features
- Ethernet Connectivity – dual IONet support (ENet1/ENet2) for redundancy
- Servo Loop Control – handles two valve position loops via WSVO driver
- LED Diagnostics – visual status for networks, power, attention, and enables
- Auto‑Reconfiguration – board can self‑configure after replacement (enable/disable via ToolboxST)
- On‑board Memory – flash and RAM for firmware and operational data
- Internal Temperature Sensor – monitors board thermal conditions
Installation & Configuration
- ToolboxST Application – used for initial configuration and manual reconfiguration
- Auto‑Reconfigurable – option available in Component Editor; can be disabled for manual control
- Terminal Board Replacement – requires manual reconfiguration of the I/O pack
- Servo Testing – use manual mode, position ramping, or step current to check actuator stroke
- Trend Recorder – displays any irregularities in actuator stroke during tests
Typical Applications
- Mark VIe turbine control systems – gas, steam, and wind turbines
- Servo valve position control for fuel and steam admission
- Retrofit of older Mark VI systems with Mark VIe I/O packs
- Industrial process control requiring high‑speed servo loops
Oiltech Controls’s Insight
“The IS220PSVOH1B offers a robust and flexible interface for servo valve control in Mark VIe systems.
Its dual Ethernet capability ensures network redundancy, while the auto‑reconfiguration feature simplifies field replacements.
For maintenance teams, the built‑in temperature sensor and trend recorder provide valuable diagnostic data.
We recommend this pack for any new Mark VIe installation or upgrade that demands precise servo positioning.”
Package, Shipping & Warranty
- Package Contents – 1x IS220PSVOH1B I/O pack, anti‑static packaging, quick start guide
- Warranty – 12 months against manufacturing defects
- Dispatch Time – 24‑28 hours after order confirmation
- Shipping Carriers – FedEx, UPS, DHL (tracking number provided)
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spare parts supply
- Global shipping network – fast and reliable delivery
- Fully tested surplus and refurbished options available
- 12‑month warranty on every product
- Technical verification performed before shipment
- Expert support for obsolete and legacy control systems
Frequently Asked Questions
- Q: Can the IS220PSVOH1B be used with a single Ethernet network?
A: Yes, it supports one or two networks. Both ENet1 and ENet2 are available but not mandatory. - Q: How do I enable auto‑reconfiguration after board replacement?
A: Use the Component Editor in ToolboxST to activate the auto‑reconfiguration option. - Q: What does the Attn LED indicate?
A: The Attn LED signals attention‑worthy conditions, such as configuration errors or hardware faults. - Q: Is the infrared port used for anything?
A: No, the infrared port is present but not active in this I/O pack model. - Q: What testing methods verify servo valve performance?
A: Use manual mode stroking, position ramping, or step current; the trend recorder shows stroke irregularities.
For inquiries: info@oiltechcontrols.com
or +86 158 8020 0923 (WhatsApp)
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