Yaskawa AC Servo Drives DC Power Input Sigma-5 Series - Manual (Page 42)

4.2 Inspection and Checking before Trial Operation
4-3
4
T
rial Operation (Checking Servomotor Operation)
4.2
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 a brake, is the brake released beforehand? To release the
brake, apply the specified voltage (24 VDC). The following diagram shows an
example of the circuit wiring needed to release the holding brake before a trial
operation.
An Example of Wiring for Circuits
∗ A 24-VDC power supply for the brake is not included.
Servomotor with
holding brake SERVOPACK
Power
supply
M
BK
ENC
U
V
W
CN2
L1
L2
C1
C2
FG
CN3 CN4
Brake power supply*
Insulated AC/DC
converter for main
circuit power supply
Insulated AC/DC
converter for control
circuit power supply