Xycom AOUT XVME-530

The XVME‑530 is an 8-channel isolated analog output module under Xycom, based on the VME‑bus. It is specifically designed for scenarios such as industrial automation, process control, and real-time monitoring. This board adopts a 12‑bit D/A converter and offers two output modes: voltage (0‑5 V, 0‑10 V, ±2.5 V, ±5 V, ±10 V) and current (4‑20 mA). Each output channel achieves 300 V optical isolation, ensuring safe separation between digital logic and analog circuits.

Key Technical Specifications

• Number of Channels: 8 independent analog output channels
• Resolution: 12 bits
• Output Range:Optical Isolation: 300 V isolation per channel
  • Voltage: 0‑5 V, 0‑10 V, ±2.5 V, ±5 V, ±10 V
  • Current: 4‑20 mA
• Power Supply: 5 V ±5 %, typical current 2.6 A
• Operating Temperature: 0 °C ~ 65 °C (Non-operating: -40 °C ~ 85 °C)
• Humidity: 5 % ~ 95 % RH (non-condensing)
• Altitude: Up to 10,000 ft during operation; up to 50,000 ft when non-operating
• Interface: Compliant with VMEbus (IEEE 1014) standard, compatible with Xycom standard I/O architecture
• Programmable Gain/Bias: Each channel can be independently calibrated to zero error

Product Features

• High Reliability: 300 V optical isolation prevents noise coupling, making it suitable for harsh industrial environments.
• Flexible Configuration: It can switch between voltage and current modes via jumpers to meet various control requirements.
• High Precision: 12‑bit resolution and ±0.5 LSB error ensure delicate output adjustment.
• Plug-and-Play: Compliant with VME‑bus specifications, it supports hot swapping for easy system expansion.
• Bidirectional Calibration: The gain and bias of each channel can be calibrated on-site, simplifying on-site debugging.

Structure and Composition

• PCB Main Body: A multi-layer high-frequency board that integrates 8-channel DAC, optocoupler isolation circuit, DC‑DC converter, and power filter.
• D/A Conversion Chip: 12‑bit high-precision DAC (independent for each channel).
• Optocoupler Isolation Unit: Each channel uses an optocoupler to achieve 300 V isolation.
• Jumper Block: Used to select the output mode (voltage/current) and the corresponding range.
• Power Module: Internal 5 V voltage stabilization and current limiting circuit.
• Connector: Standard VME‑bus slot, compatible with Type A, B, and C backplanes.

Typical Application Fields

• Process Control: Valve driving, flow regulation, temperature control loops.
• Instrumentation and Recording: Oscilloscopes, strip chart recorders, data acquisition systems.
• Motor and Servo: Variable-speed motor control, proportional valve driving.
• Industrial Automation: PLC expansion modules, analog output for SCADA systems.
• Laboratory Equipment: Precision power supplies, analog signal sources for calibration instruments.

Installation and Maintenance Guidelines

Installation

1. Insert the PCB into the chassis backplane that meets VME‑bus specifications, ensuring the card slot latch is in place.
2. Use jumpers to configure the voltage or current mode and select the corresponding range according to requirements.
3. Connect the power cable (5 V) and signal cables, and check that the connections are secure and free of short circuits.

Debugging

1. After power-on, use upper computer software to read the module status and confirm that all channels have been initialized to 0 V/0 mA.
2. Perform zero calibration for the gain and bias of each channel using software or on-site calibration tools.

Maintenance

1. Regularly inspect the heat sink and fan (if any) to maintain good ventilation.
2. In high-temperature or high-humidity environments, ensure the chassis is sealed to prevent corrosion.
3. If output abnormalities occur, first check whether the optocoupler isolation is damaged, then check whether the power supply of the DAC chip is stable.

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