Servomotors With Brakes - YASKAWA MECHATROLINK Sigma 2 Series User Manual

5.4.2

Servomotors with Brakes

Use servomotors with brakes for vertical shaft applications or when external force is applied
to the shaft to prevent the shaft from rotating due to gravity or external force when power is
lost.
The SERVOPACK uses the brake interlock output (/BK) signal to control holding brake
operation when using servomotors with brakes.
Vertical Shaft
To prevent faulty operation due to gravity or external force, make sure that the servomotor and holding
IMPORTANT
brake operate normally with the servomotor disconnected from the machine. When both of them oper-
ate normally, connect the servomotor to the machine to start trial operation.
The following figure shows wiring for a servomotor with brakes. Refer to 6.5.2 Using the
Holding Brake for details on wiring.
Power supply
Three-phase 200 V
Single-phase
200 V
Servomotor
Holding brake
Prevents the
servomotor from
rotating due to gravity .
SGDH
L1 , L2 , L3
SERVOPACK
Magnetic Contactor
Brake power supply
Brake control relay
LPDE-1H01 (100-V input)
LPSE-2H01 (200-V input)
5-7
5.4 Supplementary Information on Trial Operation
Shaft with External Force Applied
External
Servomotor
force
Servomotor with brakes
U , V , W
M
C N 2
(90VDC)
Encoder
PG
5