RELIANCE 61C-160 16-channel AC digital input module
61C-160 is 16-channel AC digital input module belonging to Reliance AutoMax PLC rack series, standard plug-in I/O card for AutoMax mainframe control system. It collects field switching signal status from on-site sensors, limit switches and relay contacts, converts alternating current field signal into internal logic level and transmits data to CPU mainboard via rack backplane bus. Original production has been discontinued, available products include factory surplus unused stock and fully tested refurbished modules, mainly used for renovation and spare replacement of old papermaking, textile, metallurgy production line AutoMax control cabinets.
Description
Product Introduction
61C-160 is 16-channel AC digital input module belonging to Reliance AutoMax PLC rack series, standard plug-in I/O card for AutoMax mainframe control system. It collects field switching signal status from on-site sensors, limit switches and relay contacts, converts alternating current field signal into internal logic level and transmits data to CPU mainboard via rack backplane bus. Original production has been discontinued, available products include factory surplus unused stock and fully tested refurbished modules, mainly used for renovation and spare replacement of old papermaking, textile, metallurgy production line AutoMax control cabinets.
Model Definition
61C stands for general coding of Reliance AutoMax AC input module family; suffix 160 means 16-point single-group channel layout design, fixed channel quantity and rack installation outline, compatible with all standard AutoMax I/O rack slots of same series without cabinet modification during replacement.
Technical Specifications
Rated field input voltage: 115VAC 50/60Hz, allowable input voltage fluctuation ±15%. Single channel input rated current 8mA; isolated optocoupler isolation design between field circuit and internal control bus. Continuous operating ambient temperature: -10℃ ~ +60℃, storage temperature range: -40℃ ~ +85℃, working humidity 5%~85% non-condensing. Overall dimension follows AutoMax standard single-width plug-in module specification, pass factory high voltage isolation withstand test.
Interface and Communication Configuration
External field wiring via fixed screw terminal row, 16 independent signal input terminals plus common power terminal. Gold finger backplane connector for plugging into AutoMax system rack, all input status data upload to master CPU through proprietary AutoMax backplane bus; no external independent fieldbus communication port.
Core Functions
Real-time detect on-site 115VAC switch on/off state of each channel, opto-isolate external industrial interference noise to avoid field surge damage internal control circuit. Compile 16-channel switching status into bus data frame and cyclically send to rack main controller. Built-in overvoltage and surge suppression circuit for each input channel, automatically filter abnormal pulse signal to prevent mis-triggering input status.
Application Scenarios
Match AutoMax PLC system for signal acquisition of papermaking machine auxiliary interlock switch, textile loom position proximity switch, metallurgical conveyor limit signal, printing equipment safety interlock feedback and traditional packaging machinery digital input collection.
Operation and Maintenance Instructions
Cut off rack cabinet total control power and wait 15 minutes before hot plugging the module. Clean terminal block dust and check wiring looseness during quarterly maintenance, wipe gold finger oxidation with dry cleaning cloth. Avoid long-term field input overvoltage impact; when channel failure occurs, replace whole module after checking external field circuit and load equipment.
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