DIY Electric Car Forums banner

contactor fault

  1. Sevcon 4qpm controller problem

    Controllers
    Hello, I am using a sevcon 4qpm controller and a PMG-132 perm motor for an e-car. Problem: When I press the keyswitch the contactor closes immediately, no delay as before, and I am getting the fault: Drive 1 off, contactor 1 did not pulse during power on failsafe checks (failsafe circuit...
Top