RELIANCE 0-51446 Current Feedback Board

Technical SpecificationsModel:0-51446 Brand:RELIANCE Product type:Current Feedback Board Weight:0.52kg Dimension:200mm130mm28mm Operating temperature:0℃ ~ 60℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE

System compatibility0-51446 belongs to RELIANCE current feedback board. Installed inside Reliance DC variable speed drive cabinet,cooperates with main regulator board and armature current transformer. It samples and converts armature current signal for current loop closed-loop regulation. Commonly used for maintenance and spare replacement of old industrial DC drive equipment.

Function0-51446 is dedicated armature current sampling feedback PCB for RELIANCE DC drive system. Receive AC current signal from drive current transformer. Complete signal rectification,amplification and level conversion to generate proportional DC current feedback signal. Transmit processed current feedback signal to main control regulator for current closed-loop control. Provide overcurrent detection signal for drive protection circuit. Filter high-frequency noise generated by SCR commutation. Calibrate full-scale current value through onboard potentiometer.

InstallationPower off the whole drive cabinet and cut main power supply. Mount 0-51446 board to designated bracket and lock fasteners. Connect current transformer input and analog feedback output wiring. Separate high-current sensing wiring from low voltage analog signal cable. Power on system,calibrate full-load current feedback value. Verify current response under no-load and overload test.

InterfaceTerminal block connector,current transformer signal input,analog current feedback output,adjustment potentiometer,shield grounding terminal,status LED indicators.

FeatureRELIANCE 0-51446 analog current feedback sampling board. Precision rectifier and signal amplification circuit for armature current measurement. Onboard potentiometer for full-scale current calibration. Built-in noise filter to suppress SCR commutation interference. Industrial PCB design for long continuous running in harsh factory environment. Discontinued obsolete board,supply only for old Reliance DC drive system spare replacement. Suitable for metallurgy,paper-making production line DC drive renovation and maintenance.

DiagnosticDrive current unstable:feedback signal drift or potentiometer aging; False overcurrent alarm:signal distortion caused by component failure; No current feedback output:CT input wiring break or board auxiliary power loss; Slow current response:amplifier circuit performance degradation; Intermittent current fluctuation:poor shield grounding.

Product BriefRELIANCE 0-51446 is current feedback board. It samples,rectifies and amplifies armature current signal,provides feedback value for current closed-loop regulation and overcurrent protection of Reliance legacy DC drive,widely used as spare part for legacy DC drive equipment maintenance.

DisclaimerAll 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.