Service Manual
rev 5.0 with software Ind1V022
After a time delay (normally 0.3s), the delayed contact of the brake contactor opens, which disconnects the
supply from terminal 3 and the rectifier changes to a half wave type. Half wave operation prevents heating of
the brake coil and is enough to keep the brake open.
To close the brake, the brake contactor disconnects the supply to terminals 1 and 2. The released brake
contactor also opens the brake coil DC-circuit, which speeds closing of the brake. The purpose of the varistor
there is overvoltage protection for K7 contacts and the brake coil.
25/58
Drivecon Inc. reserves the right to alter or amend the above information without notice.
Summary of Contents for D2L
Page 59: ......
