RELIANCE 051865-6 CLDB Current Loop Driver Board

Technical SpecificationsModel:051865-6 Brand:RELIANCE Product type:CLDB Current Loop Driver Board Weight:0.59kg Dimension:210mm135mm30mm Operating temperature:0℃ ~ 60℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE

System compatibility051865-6 is RELIANCE CLDB rack plug-in current loop driver board. It is designed for Reliance MaxPak Plus series spindle DC drive rack,cooperates with USAB summing amplifier board and CGSA gate summing board. It receives error signal and outputs amplified current loop signal for armature current closed-loop regulation. Commonly used for maintenance and spare replacement of old industrial spindle DC drive equipment.

Function051865-6 is dedicated CLDB current loop driver PCB for RELIANCE MaxPak Plus DC drive system. Receive analog error signal from summing amplifier module. Amplify and convert the signal into stable current loop output to control SCR firing angle for armature current regulation. Front panel multi-turn high-precision potentiometers for loop gain and offset calibration. Built-in signal limiting circuit to prevent current overshoot during dynamic load change. Dual LED indicators for normal operation and current fault alarm. Optimized signal isolation design to reduce cross-interference with adjacent rack boards.

InstallationPower off the whole drive cabinet and cut main power supply. Insert 051865-6 CLDB board into drive rack slot and lock retaining screw. Connect gold finger backplane connector for internal signal exchange. Separate low-level analog control wiring from high-power pulse cables. Power on system,calibrate loop gain and zero offset via front potentiometers. Verify current loop stability under dynamic load variation.

InterfaceBackplane edge connector,analog error signal input,current loop driving signal output,auxiliary power terminal,shield grounding terminal,dual status LED indicators,front multi-turn calibration potentiometer bank.

FeatureRELIANCE 051865-6 rack mount CLDB current loop driver board. Discrete analog amplifier and limiting circuit for current loop driving. Front panel multi-turn adjustable potentiometers for gain and offset setup. Gold plated edge connector for reliable rack signal transmission. Dual LED visual indication for running and fault state. Industrial PCB design for long continuous running in harsh factory environment. Discontinued obsolete board,supply only for old Reliance MaxPak Plus DC drive system spare replacement. Suitable for metallurgy,paper-making production line spindle DC drive renovation and maintenance.

DiagnosticDrive current oscillation:loop gain setting too high or component aging; Unstable current output:input signal circuit damage; Fault LED lit:current overshoot or internal circuit saturation; No driving signal output:amplifier circuit failure; Intermittent current fluctuation:backplane pin oxidation and poor contact.

Product BriefRELIANCE 051865-6 is CLDB current loop driver board. It amplifies closed-loop error signal and outputs current driving signal for Reliance MaxPak Plus legacy spindle DC drive armature current regulation,widely used as spare part for legacy DC drive equipment maintenance.

Disclaimer:All parameters are for reference only and not the basis of quotation. Goods are scarce,overseas delivery lead time 3-7 working days. It is only used for equipment maintenance and retrofit.