Wiring The Servopack To The Holding Brake - YASKAWA SGD7S Product Manual

4.4 Wiring Servomotors

4.4.4 Wiring the SERVOPACK to the Holding Brake

4.4.4

Wiring the SERVOPACK to the Holding Brake

Important
Power supply
BK-RY: Brake control relay
1D: Flywheel diode
*
Install the surge absorber near the brake terminals on the Servomotor.
4-32
• If you use a Rotary Servomotor, select a Surge Absorber according to the brake current and
brake power supply. Refer to the following manual for details.
Σ-7-Series Peripheral Device Selection Manual (Manual No.: SIEP S800001 32)
• After the Surge Absorber is connected, check the time required to brake in your application.
The Surge Absorber may affect the time required to brake.
Configure the relay circuit to activate the holding brake for an emergency stop.
Relay Circuit Example
SERVOPACK
Photocoupler
• The /BK (Brake) signal cannot be used with the default settings. You must allocate the output
signal. Refer to the following section for details.
Allocating the /BK (Brake) Signal
• If you use a 24-V brake, install a separate power supply for the 24-VDC power supply from
other power supplies, such as the one for the I/O signals of the CN1 connector. If the power
supply is shared, the I/O signals may malfunction.
SERVOPACK
L1
L2
L3
L1C
L2C
Brake power supply
AC
5 VDC to 30 VDC
Emergency stop
0 V
on page 5-39
U
V
W
CN2
CN1
BK-RY
(/BK+)
1D
(/BK-)
DC side
BK-RY
DC
Servomotor with
Holding Brake
*
+24 V
Surge Absorber
0 V
M
ENC
BK