Manual

0198441113730, V2.02, 03.2011
BRS3 4 Installation
3-phase stepper motor 63
4.4.3 Holding brake connection
Controlling the holding brake A motor with a holding brake requires a holding brake controller which
releases the holding brake when a movement is to be started and ap-
plies the holding brake after a motor stop. The holding brake must be ap-
plied in the case of a voltage drop or when the power stage is disabled.
Wiring diagram of holding brake
Figure 4.6 Wiring diagram of holding brake
The connector is a part of the scope of supply.
Connector designation: Hirschmann type G4 A 5M
@ WARNING
LOSS OF BRAKING FORCE DUE TO WEAR OR HIGH TEMPERATURE
Applying the holding brake while the motor is running will cause ex-
cessive wear and loss of the braking force. Heat decreases the brak-
ing force.
• Do not use the holding brake as a service brake.
• Note that "EMERGENCY STOPS" may also cause wear
• At operating temperatures of more than 80°C (176°F), do not
exceed a maximum of 50% of the specified holding torque when
using the brake.
Failure to follow these instructions can result in death, serious
injury or equipment damage.
@ WARNING
LOAD FALLS DURING SWITCHING ON
When the holding brake of stepper motor drives is released and ex-
ternal forces are applied (vertical axes), the load may fall if the friction
is low.
• In such applications, limit the load to a maximum of 25% of the
static holding torque.
Failure to follow these instructions can result in death, serious
injury or equipment damage.
24V
dc
Pin Signal Meaning I/O
1, 2 24Vdc Power supply of holding brake (non-polar-
ized)
I