RELIANCE 490054 Field Regulator Board

Technical Specifications

Model:490054

Brand:RELIANCE

Product type:DC Motor Field Excitation Regulator PCB Board

Weight:0.37kg

Dimension:220mm115mm25mm

Operating temperature:0℃ ~ 60℃

Storage temperature:-40℃ ~ +85℃

Relative humidity:5%~85%,non-condensing

Certification:CE

System compatibility

490054 belongs to RELIANCE CardPak series excitation regulator board.

Installed into CardPak drive rack,matched with 490051 armature control board and Reliance DC drive power unit.

Realize DC motor field winding closed-loop excitation control.

Compatible with AutoMax control system for heavy industry production line.

Commonly used for old DC drive equipment maintenance and spare replacement.

Function

490054 is dedicated field excitation control PCB board for RELIANCE CardPak DC drive system.

Receive excitation current setpoint signal from armature control board.

Complete closed-loop regulation of DC motor field excitation current.

Output SCR gate trigger signal for excitation power circuit.

Collect field current feedback signal and execute overcurrent protection logic.

Onboard test points for field current measurement and excitation parameter tuning.

Detect excitation loss fault and transmit alarm signal to upper control board.

Installation

Power off the whole CardPak drive rack and cut main power supply.

Insert 490054 board into designated slot of drive rack.

Fasten fixing screws.

Connect backplane signal connector and excitation feedback wiring.

Separate high-power excitation cable and low voltage control signal cable.

Power on system,calibrate field current loop parameters.

Test excitation regulation and field loss protection function.

Interface

CardPak backplane edge connector,field current feedback terminal,SCR trigger output port,test measurement points,status LED indicators.

Feature

RELIANCE 490054,CardPak DC motor excitation regulator printed circuit board.

Independent field current closed-loop control for constant power speed regulation.

Hardware excitation loss and overcurrent protection circuit.

Multiple test points for convenient maintenance and onsite debugging.

Standard CardPak plug-in structure,easy replacement together with 490051.

Discontinued obsolete board,supply only for old automation drive system spare replacement.

Suitable for metallurgy,paper-making heavy-duty DC drive production line renovation.

Diagnostic

Field current unstable:loop parameter drift or excitation wiring interference;

No excitation output:backplane connector loose or board power fault;

Excitation loss alarm:field winding open circuit or sampling circuit damage;

LED abnormal:board power supply failure;

Motor cannot reach rated speed:excitation calibration parameter error.

Product Brief

RELIANCE 490054 is CardPak DC motor field regulator board.

It controls DC motor excitation current and outputs trigger signal to excitation SCR unit,widely used as spare part for heavy industry DC drive system 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.