BASIC USES OF Σ-SERIES PRODUCTS
2.4.3 Step 2: Conducting a Test Run with the Motor Connected to the Machine
44
(4) To change motor speed or the direction of rotation, reset the user constants shown
below.
Cn-24,Cn-25
Electronic gear ratio (see page 81)
Cn-02 bit 0 Reverse rotation mode (see page 54)
If an alarm occurs or the motor fails to rotate during the above operation, connec-
tor 1CN wiring is incorrect or the user constant settings do not match the host con-
troller specifications.
In this case, check the wiring and review the user constant settings, then repeat
step 1.
Refer to Appendix E List of Alarm Displays and Appendix D List of User Constants.
This is all that is required to complete step 1 (conducting a test run for motor without load).
Whenever possible, perform tuning associated with the host controller and other neces-
sary adjustments in step 1 (before installing the motor on the machine).
2.4.3 Step 2: Conducting a Test Run with the Motor Connected to
the Machine
After step 1 is complete, proceed to step 2 in which a test run is conducted with the motor
connected to the machine. The purpose of step 2 is to adjust the Servopack according to the
machine characteristics.
Conduct a test run according to the procedure described below.
Purposes: 1) Autotuning
2) Speed adjustment
SGDA
Servopack
Servomotor
Connect to the machine.
NOTE Before proceeding to step 2, repeat step 1 (conducting a test run for the motor without load)
until you are fully satisfied that the test has been completed successfully. Operation faults that
arise after the motor is connected to the machine not only damage the machine but may also
cause an accident resulting in injury or death. Therefore, all items including user constants
setting and wiring should be tested as conclusively as possible before step 1 is complete.
2
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