4 Operation
4.2.7 Holding Brakes
4-16
(1) Wiring Example
Use the SERVOPACK contact output signal /BK and the brake power supply to form a brake ON/OFF circuit.
The following diagram shows a standard wiring example.
The timing can be easily set using the brake signal (/BK).
(2) Signal Setting
This output signal controls the brake.
The /BK signal turns OFF when an alarm is detected or the servomotor power is OFF. The brake OFF timing
can be adjusted with Pn506.
The allocation of the /BK signal can be changed. Refer to
(3) Brake Signals (/BK) Allocation
for details.
• Configure the relay circuit to apply the holding brake by the emergency stop.
Linear servomotor
SERVOPACK
Power supply
M
BK
ENC
U
V
W
CN2
AC
DC
BK-RY
BK-RY
+24 V
L1
L2
L3
L1C
L2C
(/BK+)
1
2
(/BK-)
CN1
Brake power
supply
AC side
DC side
1D
0 V
Relay Circuit Example
0 V
Emergency stop
5 to 24 VDC
SERVOPACK
Photocoupler
Type
Name
Connector
Pin Number
Setting
Meaning
Output
/BK
CN1-1, CN1-2
ON (close)
Releases the brake.
OFF (open)
Applies the brake.
The /BK signal remains ON during overtravel. The brake is released.