RELIANCE 0-52808 OLVC Protection Circuit Board

Technical Specifications

Model:0-52808

Brand:RELIANCE

Product type:OLVC Over Voltage Limit Control PCB Board

Substrate:FR4 printed circuit board

Weight:0.33kg

Dimension:160mm110mm2.8mm

Operating temperature:0℃ ~ 60℃

Storage temperature:-40℃ ~ +85℃

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

Certification:CE

System compatibility

0-52808 belongs to RELIANCE MaxPak series DC drive protection board.

Designed for Reliance MaxPak legacy DC drive units.

Work with MaxPak main control boards in the same drive rack.

Applied for overvoltage monitoring and protection of DC drive power section.

Commonly used for old drive equipment maintenance and spare replacement.

Function

0-52808 is OLVC overvoltage limit control card for RELIANCE MaxPak DC drive.

Continuously monitor DC bus voltage of the thyristor power circuit.

Trigger protection action when bus voltage exceeds preset threshold.

Send interlock signal to block thyristor firing pulse to suppress overvoltage risk.

Prevent power components from breakdown caused by regenerative voltage spike.

Provide overvoltage fault latch and alarm signal output.

Installation

Power off the whole drive cabinet and cut main power supply.

Insert 0-52808 board into MaxPak designated slot.

Fasten front panel fixing screws.

Connect edge connector and high voltage sampling terminals.

Check wiring tightness and insulation safety of high voltage sampling line.

Power on system,calibrate overvoltage threshold value.

Test protection function by simulation and verify fault alarm output.

Interface

MaxPak edge connector,high voltage sampling terminal strip,fault LED indicators.

Feature

RELIANCE 0-52808,MaxPak OLVC overvoltage protection PCB assembly.

High voltage sampling circuit with isolation design.

Hardware fast protection response for sudden voltage surge.

Fault latch function to record overvoltage event.

Clear terminal marking for safe maintenance 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 reports overvoltage false alarm:sampling circuit drift or board component aging;

No protection response during overvoltage:sampling circuit failure;

Drive cannot run normally:protection circuit locked and interlock triggered;

LED indicator no light:board auxiliary power supply failure.

Product Brief

RELIANCE 0-52808 is MaxPak OLVC overvoltage limit control circuit board.

It monitors DC bus voltage and implements hardware overvoltage protection 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.