Products Description
XYCOM 121470-001 Digital Input Module

Technical Specifications
Model:121470-001
Brand:XYCOM
Product type:VME Bus Rack Mount Digital Input Module
Power supply:5V,±12VDC
Bus type:VME bus
Input signal:24VDC,optically isolated digital input
Channel:8 isolated digital input channels
Mounting:3U VME rack slot
Weight:0.70kg
Operating temperature:0℃ ~ +70℃
Storage temperature:-40℃ ~ +85℃
Relative humidity:5%~95%,non-condensing
Certification:CE,UL
System compatibility
121470-001 belongs to XYCOM VME series digital input module.
It can work with XYCOM VME bus SBC such as XYCOM 1840 and XVME series I/O modules.
Compatible with turbine,compressor and legacy DCS control systems.
Commonly used for power plant,oil & gas,petrochemical old equipment monitoring,maintenance and spare replacement.
Function
8-channel opto-isolated digital signal acquisition.
Collect field switch status,limit switch,interlock and alarm contact signals.
Optocoupler isolation separates field 24V circuit and VME control bus to suppress interference.
On-board overvoltage and surge protection for field input channels.
Support VME bus data reading,channel status query and hardware self-diagnosis.
Installation
Insert the module into 3U VME rack slot and fasten front panel screws.
Connect VME backplane power and bus signal.
Wire field 24VDC digital signal to terminal block.
Power on,set VME base address.
Test each channel signal acquisition and fault detection function.
Interface
VME backplane connector,digital signal terminal block,LED indicators:RUN,FAULT,CHANNEL STATUS.
Feature
Standard 3U VME single-width module,easy to install in existing XYCOM VME rack.
8-way optoelectronic isolation design,strong anti-interference ability for industrial site.
Suitable for turbine interlock logic,valve position feedback and equipment status monitoring.
Discontinued obsolete industrial board,supply only for old production system spare replacement.
Rugged PCB design,shock and vibration resistance for continuous long-time operation.
Diagnostic
Check RUN,FAULT,CHANNEL STATUS LED;no communication:check VME backplane power and address setting;channel no input:inspect field 24V power and contact wiring;fault alarm:check overvoltage or short circuit on field side.
Product Brief
XYCOM 121470-001 is VME bus 3U 8-channel optically isolated digital input module.
It collects field switch and interlock signals for legacy turbine and compressor control system,widely applied to spare replacement for 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.