Products Description
RELIANCE 0-52854 VCTC Analog Comparator Circuit Board

Technical Specifications
Model:0-52854
Brand:RELIANCE
Product type:VCTC Analog Comparator PCB Board
Substrate:FR4 printed circuit board
Weight:0.32kg
Dimension:160mm110mm2.8mm
Operating temperature:0℃ ~ 60℃
Storage temperature:-40℃ ~ +85℃
Relative humidity:5%~85%,non-condensing
Certification:CE
System compatibility
0-52854 belongs to RELIANCE MaxPak series VCTC analog comparator board.
Designed for Reliance legacy MaxPak DC drive rack.
Work cooperatively with ACCA control board 0-52837 and IRFA firing board 0-52850.
Used for analog voltage signal comparison and threshold detection inside DC drive control loop.
Commonly used for old drive equipment maintenance and spare replacement.
Function
0-52854 VCTC is analog comparator card for RELIANCE MaxPak DC drive.
Sample and compare multiple analog voltage signals from drive control loop.
Detect current and voltage threshold value for drive protection logic.
Output level signal to trigger interlock and fault alarm when signal exceeds preset limit.
Provide threshold reference voltage for speed and current loop monitoring.
Coordinate with other MaxPak boards to complete drive limit protection and status judgement.
Installation
Power off the whole drive cabinet and cut main power supply.
Insert 0-52854 board into MaxPak designated slot.
Fasten front panel fixing screws.
Connect edge connector and analog sampling signal terminals.
Check wiring tightness and shielding of analog signal cables.
Power on system,calibrate comparison threshold potentiometer.
Test protection trigger function under simulation condition.
Interface
MaxPak edge connector,analog signal sampling terminal strip,fault status LED indicators.
Feature
RELIANCE 0-52854,MaxPak VCTC analog comparator PCB assembly.
Multiple on-board adjustable potentiometers for threshold calibration.
High precision analog comparison circuit for real-time signal monitoring.
Clear terminal marking for convenient field adjustment and troubleshooting.
Discontinued obsolete board,supply only for old drive equipment spare replacement.
Suitable for metallurgy,paper-making heavy-duty MaxPak DC drive renovation.
Diagnostic
Drive false fault alarm:comparator threshold drift or component aging;
Protection no response:sampling signal missing or comparator circuit failure;
Abnormal loop operation:reference voltage deviation;
LED indicator not light:board auxiliary power failure or connector poor contact.
Product Brief
RELIANCE 0-52854 VCTC is MaxPak analog comparator circuit board.
It samples and compares analog loop voltage signal and outputs threshold trigger signal for Reliance MaxPak DC drive,widely used as spare part for heavy industry DC motor drive maintenance.

Disclaimer
All parameters are for reference only and not for quotation basis. Goods are scarce and will be powered on for inspection before shipment. Overseas delivery lead time 3-7 working days. This item is only used for equipment maintenance and retrofit.