Connecting The Holding Brake - HEIDENHAIN TNC 410 M Technical Manual

7.6 Connecting the Holding Brake

April 2007
The HEIDENHAIN synchronous motors can be supplied with a holding brake
(optional).
The brake is a permanent-magnet single-disk brake, operated by direct
current. It serves to hold the motor shaft at standstill.
The electrical connection of the brake is made via the power connection. See
"Power Connection of the HEIDENHAIN Motors" on page 7–24.
Note
The brake is a holding brake and not a service brake.
When connecting the brake, particular attention should be paid to electrical
noise immunity!
The brake is engaged when it is not under power. The rated voltage for
releasing the brake is 24 V (± 10 %).
Warning
The holding brakes are permanent-magnet brakes! Observe the correct
polarity of the dc voltage. Otherwise the brake will not be released.
The shield of the lines for the holding brake is to be kept as close as possible
(< 30 mm) to ground. The best solution is to fasten the shield with a metal
clamp directly onto the sheet-metal housing of the electrical cabinet.
Note
After mounting the motor you must verify the trouble-free functioning of
the brake.
Connecting the Holding Brake
7 – 33