Yaskawa SGDB User Manual
Page 54
BASIC USES OF Σ-SERIES PRODUCTS
2.4.2 Step 1: Conducting a Test Run for Motor without Load
42
2.4.2 Step 1: Conducting a Test Run for Motor without Load
Check that the motor is wired correctly.
If the motor fails to rotate properly during a servo drive test run, the cause most frequently lies
with incorrect wiring.
Conduct a test run for the motor without load according to the procedure described below.
For customers who use a servomotor with brake, refer to Section 2.4.4 Supplementary In-
formation on Test Run before starting a test run.
Operate the motor with
a Digital Operator.
Check wiring.
Do not connect
to the machine.
J
Securing the Servomotor
Secure the servomotor to mounting holes to prevent
it from moving during operation. Alternatively, install
the servomotor on the machine and disconect cou-
plings and belts.
J
Verifying the Wiring
Disconnect connector 1CN, then check the motor
wiring in the power supply circuit.
I/O signals (1CN) are not to be used so leave con-
nector 1CN disconnected.
J
Turning the Power ON
Turn the SERVOPACK power ON. If the SERVO-
PACK is turned ON normally, the LED on the Digital
Operator lights up as shown in the figure.
Power is not supplied to the servomotor because the
servo is OFF.
If an alarm display appears on the LED as shown in
the figure above, the power supply circuit, motor wir-
ing or encoder wiring is incorrect. In this case, turn
the power OFF, then correct the problem. For de-
tails, refer to Appendix D List of Alarm Displays.
2
Secure servomotor to mounting holes.
Do not connect
anything to the
motor shaft
(no-load
status).
Disconnect
connector
1CN
Normal display
Alternately displayed
Example of alarm display
Refer to Appen-
dix D List of
Alarm Displays.