XYCOM XVME-531

The XVME‑531 is a 16-channel analog output module launched by XYCOM, compliant with the VMEbus standard (3U single slot). It delivers independent analog outputs of voltage or current in VME systems, making it suitable for industrial control scenarios that require multiple precise analog signals.

Key Technical Specifications

• Number of channels: 16 channels (each channel configurable independently)
• Resolution: 12 bits (corresponding to 4096 levels)
• Output type: Selectable voltage (±10 V, 0‑10 V, etc.) or current (4‑20 mA, 0‑20 mA), available in isolated or non-isolated versions
• Output range: Programmable gain and offset, with a maximum output voltage of 10 V and current of 20 mA per channel
• Isolation level: Up to 500 V optocoupler isolation (for isolated versions)
• Synchronized output: Supports multi-channel synchronous update, ideal for waveform generation or real-time control
• Error: Total voltage output error of approximately 0.5 LSB, current output error of around ±0.66 LSB
• Power supply: VME bus power (+5 V, +12 V)
• Operating temperature: 0 °C ~ +55 °C (industrial grade)

Product Features

• High channel density: 16 independent outputs on a single card, saving chassis space.
• Flexible configuration: Each channel can be individually set for voltage/current type, range, gain, and offset to meet diverse signal requirements.
• Synchronized multi-channel output: All channels update with a single write operation, ensuring consistent signal timing.
• Strong isolation: Isolated versions offer 500 V optocoupler isolation, enhancing system anti-interference capability for high potential difference environments.
• Low power consumption and industrial reliability: Compliant with VMEbus specifications, wide operating temperature range, suitable for harsh industrial sites.

Structure and Composition

• Module body: 3U VME card, mounted on the VME backplane.
• Analog output sub-board: Each channel is equipped with a 12-bit DAC and output drive circuit; isolated versions feature a pre-stage optocoupler per channel.
• Control logic: FPGA/microcontroller handles register mapping, synchronous triggering, and gain/offset programming.
• Power filtering and protection: Input power undergoes filtering and overvoltage/overcurrent protection to ensure long-term stable operation.

Typical Application Areas

• Process control: Analog voltage/current driving for valves and actuators.
• Instrumentation: Signal sources, waveform generators, and calibration equipment.
• Automated testing: Multi-channel analog signal output for equipment function verification.
• Industrial on-site monitoring: Compensation or supplementary signal output for analog acquisition systems.
• Scientific research experiments: Experimental platforms requiring multiple high-precision analog signals.

Installation and Maintenance Guidelines

Installation

1. Insert the XVME‑531 into a VME-C compliant backplane slot, ensuring the card’s rear clips are securely fastened.
2. Connect the power supply and ground wires, verifying that the supply voltage meets VME specifications (+5 V, +12 V).
3. For isolated versions, confirm proper chassis grounding to avoid false triggering caused by ground loops.

Configuration

1. Program each channel’s mode, range, gain, and offset via VME bus register mapping software (e.g., LabVIEW, EPICS).
2. For synchronous updates, use the module’s built-in “synchronous trigger” register or an external trigger signal.

Routine Maintenance

1. Regularly inspect slots and the backplane for dust and corrosion, maintaining adequate heat dissipation.
2. Monitor power supply voltage and temperature; replace the power supply or heat sink promptly if abnormal fluctuations occur.
3. For isolated versions, conduct insulation resistance testing every 2–3 years to ensure 500 V isolation remains within specifications.

Troubleshooting

• No output: Check VME bus power supply and system recognition of the card; confirm register configurations have been saved.
• Output deviation: Calibrate gain/offset settings and compare with reference signals using a high-precision multimeter or oscilloscope.
• Synchronization failure: Verify the integrity of the trigger signal and check if synchronization registers have been accidentally modified.

If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
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