Yaskawa Sigma-5 Series User Manual:: For Use with Large-Capacity Models-Setup. Rotary Motors - Manual (Page 100)

5.2 Inspection and Checking before Trial Operation
5-3
T
rial Operation (Checking Servomotor Operation)
5.2
Inspection and Checking before Trial Operation
To ensure safe and correct trial operation, inspect and check the following items
before starting trial operation.
„ Servomotors
Inspect and check the following items, and take appropriate measures before per-
forming trial operation if any problem exists.
• Are all wiring and connections correct?
• Are all nuts and bolts securely tightened?
• If the servomotor has an oil seal, is the seal undamaged and is the motor oiled?
• If the servomotor has a brake, is the brake released beforehand? To release the
brake, apply the specified voltage (24 VDC or 90 VDC). The following diagram
shows an example of the circuit wiring needed to release the holding brake before a
trial operation.
An example of the circuit wiring
Servomotor with
holding brake
Surge
absorber
Power supply
SERVOPACK and
converter
Red
Black
Blue or yellow
White
M
BK
ENC
U
V
W
CN2
AC DC
BK-RY
BK-RY
+24 V
L1
L2
L3
(/BK+)
(/BK-)
CN1 CN101
Brake power
supply
AC side DC side
1D
0 V
0 V
24 V
24-VDC
power
supply
100/200 VAC
400 VAC
+
-
BK-RY: Brake control relay
A 24-VDC power supply for a 24-VDC brake is not included.
Brake power supply for 90 V Input voltage 200-V models: LPSE-2H01-E
Input voltage 100-V models: LPDE-1H01-E