RELIANCE 0-49020-4 Current Feedback Board

Technical SpecificationsModel:0-49020-4 Brand:RELIANCE Product type:Current Feedback Board Weight:1.07kg Dimension:231mm161mm28mm Operating temperature:0℃ ~ 60℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE

System compatibility0-49020-4 belongs to RELIANCE CardPak series current feedback board. Installed into CardPak rack,works with summing board and limit module board. It samples and processes loop current feedback signal for CardPak DC drive system. Commonly used for old industrial DC drive equipment maintenance and spare replacement.

Function0-49020-4 is dedicated current feedback processing board for RELIANCE CardPak DC drive system. Receive raw current sampling signal from transductor module. Perform signal conditioning,filtering and proportional conversion. Output standard analog current feedback signal for closed-loop current regulation. Onboard potentiometer for current signal gain calibration. Detect overcurrent trend and send early warning signal to protection board. Suppress commutation noise from SCR power unit.

InstallationPower off the whole drive cabinet and cut main power supply. Insert 0-49020-4 board into designated CardPak slot and lock retaining latch. Connect backplane bus connector and current signal wiring. Separate low voltage control wiring from high power main circuit cable. Power on system,calibrate current gain via front potentiometer. Verify feedback signal linearity under different load current.

InterfaceBackplane bus connector,current signal input,feedback analog output terminal,calibration potentiometer,status LED indicators.

FeatureRELIANCE 0-49020-4,CardPak rack mount current feedback board. Current signal conditioning and linear conversion. Onboard potentiometer for field gain calibration. Built-in noise filtering for SCR commutation interference. Galvanic isolation between power sampling and control circuit. Industrial PCB design for long continuous running in harsh factory environment. Discontinued obsolete board,supply only for old CardPak DC drive system spare replacement. Suitable for metallurgy,paper-making production line DC drive renovation.

DiagnosticDrive current unstable:feedback gain calibration drift or signal noise; Inaccurate current reading:potentiometer offset or component aging; No current feedback output:input circuit damage or backplane poor contact; Frequent overcurrent alarm:signal distortion caused by component degradation; Current reading fluctuates with load:filter circuit failure.

Product BriefRELIANCE 0-49020-4 is CardPak current feedback board. It conditions and converts raw current sampling signal for closed-loop current control of Reliance CardPak 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.