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

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.

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.

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.

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.

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.