IS200VAOCH1A | New Surplus GE VAOC PCB

Description

Product Introduction (Anti-Template)

Analog outputs are how your control system talks to actuators, positioners, and drives—and this board gives you the versatility to generate the right signal for each device. The IS200VAOCH1A is the VAOC (Versatile Analog Output Card) variant for the Mark VIe system, a termination board designed for configurable analog output signals. This board handles the interface between the Mark VIe controller and analog actuators, positioners, and other field devices that require voltage or current control signals.

The ‘H1A’ designation indicates a specific variant with the ‘A’ revision. The key value of the VAOC board is its versatility—each channel can typically be configured for different output types (voltage or current) via jumpers. The ‘A’ revision brings improved output accuracy and better load drive capability. Compared to the base IS200VAOCH1, the ‘A’ offers more stable output under varying load conditions. This board is a drop-in replacement for the IS200VAOCH1, with no software changes required.

Key Technical Specifications

Compatible Replacement Models

✅ Drop-in Replacement: IS200VAOCH1 — The base revision without the ‘A’ suffix. Identical pinout, mounting, and software interface. The ‘A’ revision has improved output accuracy and load drive capability. No software changes required.

⚠️ Software Compatible: IS200TBCI1A — General-purpose analog I/O board. Similar but less versatile. Verify compatibility with your specific signals.

⚠️ Software Compatible: IS200TSVOH1A — Servo output board. Different signal type (servo-specific). Requires software reconfiguration.

❌ Hardware Incompatible: IS200TBQGH1A — Excitation termination board. Different pinout and application.

Frequently Asked Questions (FAQ)

Q: What types of signals can the VAOC board generate?

A: The VAOC board can be configured for voltage outputs (typically 0-10V) or current outputs (typically 4-20mA) depending on jumper configuration. This versatility makes it suitable for a wide range of actuator and positioner applications.

Q: What improvements does the ‘A’ revision have over the base VAOCH1?

A: The ‘A’ revision has improved output accuracy and better load drive capability, providing more stable output under varying load conditions.

Q: Can I replace a VAOCH1 board with a VAOCH1A without any changes?

A: Yes. The ‘A’ is a drop-in replacement. No software changes, no wiring changes, no configuration changes.

Q: Is the VAOC board hot-swappable?

A: We advise against hot-swapping analog output boards. Interrupting control signals could cause actuator or valve instability. Power down the cabinet segment before swapping.

Q: What bench testing should I do before installing a VAOC board?

A: Standard analog output protocol. First, visual inspection—verify jumper settings for your output types. Second, verify continuity. Third, apply power and verify output signal ranges using a precision voltmeter or current meter. Fourth, test load drive capability by connecting representative loads. Fifth, run a 24-hour stability test at 50°C ambient.

Q: How do I verify I’m getting a genuine VAOC board?

A: Check component markings against GE documentation. Weigh the board; should be about 355 grams. Look for the GE holographic security label.

Q: Where do I find the official wiring diagram for the VAOCH1A?

A: GE document GEK-130570 covers the VAOC series. The H1 variant is detailed in the section specific to that configuration. Pay special attention to the jumper configuration table for different output types. Always cross-reference against your cabinet’s as-built drawings. Verify every channel before terminating.

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