Siemens 6RA8018-6DV62-0AA0 SINAMICS DCM DC Drive Unit

Feature & Principle

It adopts dual B6 bridge thyristor rectifier structure for four-quadrant operation, supports forward and reverse rotation and regenerative braking. The CUD control board executes speed and current closed-loop regulation, communicates with PLC via fieldbus to adjust DC armature voltage and field excitation for stable motor speed control.

Specifications

Model: 6RA8018-6DV62-0AA0 Brand: Siemens Input: 3AC 400V, 25A Armature output: 420VDC, 30A Control type: 4-quadrant (B6)A-(B6)C Control core: CUD control unit Programming tool: STARTER Mounting: Cabinet panel mount Certification: CE, UL, RoHS

Components & Diagnostics

Thyristor power module, CUD main control board, excitation rectifier, cooling fan, pulse transformer and terminal block. Common faults: thyristor breakdown, overcurrent alarm, excitation loss, communication failure, fan fault and overtemperature protection.

Product Brief

6RA8018-6DV62-0AA0 DC converter, Siemens drive spare widely used for winder, extruder, rolling mill and other DC variable speed equipment renovation.