Yaskawa Large Capacity Sigma II Series - Manual (Page 73)

3 Trial Operation
3.2.1 Servomotors with Brakes
3-10
3.2 Supplementary Information on Trial Operation
Always refer to this information before starting trial operation in the following instances:
• 3.2.1 Servomotors with Brakes
• 3.2.2 Position Control by Host Controller
3.2.1 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.
To prevent faulty operation due to gravity or external force, make sure that the servomotor and holding
brake operate normally with the servomotor disconnected from the equipment. When both of them
operate normally, connect the servomotor to the equipment to start trial operation.
The following figure shows wiring for a servomotor with brakes. See 4.4.4 Using the Hold-
ing Brake for details on wiring.
Servomotor
z Vertical Shaft
Holding brake
Prevents the
servomotor from
rotating due to gravity.
z Shaft with External Force Applied
Servomotor
External
force
IMPORTANT
SGDH
SERVOPACK
Servomotor with brakes
Encoder
Power supply
Three-phase 400 V
Single-phase
200 V
Power supply
transformer
(400 V/200 V)
Magnetic Contactor
Brake control relay Brake power supply
LPDE-1H01 (100-V input)
LPSE-2H01 (200-V input)
(90VDC)
L1, L2, L3
U V W
M PG
CN2