XYCOM XVME-244 Isolated Digital I/O VME Module

Technical Specifications

Model:70244-701 XVME-244

Brand:XYCOM

Product type:6U Single Height VMEbus Optically Isolated Digital I/O Module

Power supply:+5V,+12V VME backplane power

Channel:64 channels,32 optically isolated digital input +32 optically isolated digital output

Input signal:10~35VDC,built-in input debounce circuit,35VDC reverse voltage protection

Output signal:10~30VDC,single channel max 400mA sourcing output,transient suppression protection

Isolation:300VDC between I/O groups,1000VDC between field side and VME bus

Bus interface:Standard VMEbus

Form factor:Single-height 6U VME card

Weight:0.25kg

Operating temperature:0℃ ~ +50℃

Storage temperature:-40℃ ~ +85℃

Relative humidity:5%~95%,non-condensing

Certification:CE,UL

System compatibility

70244-701 XVME-244 belongs to XYCOM XVME series VME I/O board.

It plugs into VME chassis and cooperates with XVME series CPU board.

Compatible with turbine,compressor and legacy DCS control systems via VME bus.

Commonly used for power plant,oil & gas,petrochemical old equipment maintenance and spare replacement.

Function

Collect field discrete switch signals,limit switch,relay contact feedback and alarm trip signals.

Built-in debounce circuit to eliminate mechanical contact bounce interference.

Output control signal to drive on-site relay,solenoid valve and indicator lamp.

Power-up,software reset or SYSFAIL fault condition will disable all outputs automatically for safety protection.

Support software readback of output status for closed-loop monitoring.

Onboard self-test circuit for channel and hardware fault inspection.

Communicate with VME host CPU for digital data read and write.

Installation

Power off VME chassis.

Insert 70244-701 XVME-244 card into empty 6U VME slot,tighten front panel fixing screw.

Connect field digital wiring to module front connector.

Power on chassis,run VME system scan and self-test program.

Test each input and output channel signal status,verify isolation performance.

Interface

VME P1/P2 backplane connector,front field signal connector,LED indicators:PASS,FAIL.

Feature

Single height 6U VME standard board,easy installation in VME rack.

Optical isolation design,separate field circuit and VME control bus,suppress surge interference.

Input debounce function,suitable for mechanical contact signal acquisition.

Safety output protection,automatically turn off outputs during system reset or fault.

Discontinued obsolete VME isolated digital I/O module,supply only for old production system spare replacement.

Vibration resistant PCB design,suitable for continuous long-time industrial operation.

Diagnostic

FAIL LED on:channel overvoltage or backplane poor contact;

Input no reading:check field loop power and wiring,inspect input reverse voltage damage;

Output no action:check load wiring,output burnout and jumper voltage selection.

Product Brief

XYCOM 70244-701 XVME-244 is legacy 6U single height VMEbus optically isolated digital I/O module.

It collects field switch signals and outputs control commands with high isolation protection,widely used as spare part for turbine and compressor control,petrochemical and power plant old DCS renovation.

Disclaimer

Product parameters are for reference only and shall not be used as pricing basis. Goods are in short supply and will be powered on for inspection before shipment. Overseas delivery lead time is 3-7 working days. The product is only used for equipment maintenance and transformation.