The controller 7CH4Q90N is a 4 quadrant chopper for PMDC motors powered by battery 24/36V for traction applications and 90 Amps maximum.
The chopper is equipped with a powerful microprocessor for digital control of the speed, current regulation and failures of the motor ; an efficient diagnostics of the failures and wrong wiring connections.
Programmability of the main parameters by handheld programmer 7PROGLCD.
Available also with 45 Amps maximum (7CH4Q45N).
The chopper is designed in accordance with the most important EC standards.