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Rectifer Operation
DC Magnetic Shoe Brakes   Before checking voltages on the rectifier panel, fully adjust brake.   Input power to the rectifier can be 380, 480, 550 or 600 volts AC. When the rectifier is energized 220 volts DC is applied to the + and - terminals, which are connected to the brake coils. After a time factor of approximately .8 seconds, a holding voltage is applied to the brake to maintain the brake in the released position.   The holding voltage required to "hold in" the brake (released position) is approximately 30 volts DC.   When power to the rectifier is cut-off, the brake will de-energize quickly and the main brake spring will set the brake.   For more information on setting and holding, setting and releasing times, and general electrical information on brakes, see Shunt Brake connections or consult the factory. A wiring diagram will be furnished with each rectifier or upon request.   Two identical brake assemblies can be operated simultaneously by a single rectifier. This applies to TM43, TM63, TM83, TM1035, TM1355, TM1665 and TM1985 brake sizes.   OPTIONAL N4 RECTIFIER ENCLOSURE
	Acceptable AC Voltage Ranges by Tap Voltages All Voltage Ranges are 50/60 Hz

 

RECTIFIER OPERATION; TM BRAKE ASSEMBLY (TYPE TMR)   WIRING DIAGRAM
Open Chassis NEMA 4	E010327 E010326	Open Chassis NEMA 4	E023205 E023204
Rectifier Assembly For TM43 ~ TM1985 (1) Brake		Rectifier Assembly TM2311 and TM3014 (1) Brake or TM43 ~ TM1985 (2) Brakes