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4. OPERATION
(4) Servo-on
Switch the servo-on in the following procedure:
1) Switch on main circuit/control power supply.
2) Switch on the servo-on signal (SON).
When placed in the servo-on status, the servo amplifier is ready to operate and the servo motor is
locked.
(5) Command pulse input
Entry of a pulse train from the positioning device rotates the servo motor. At first, run it at low speed
and check the rotation direction, etc. If it does not run in the intended direction, check the input
signal.
On the status display, check the speed, command pulse frequency, load factor, etc. of the servo motor.
When machine operation check is over, check automatic operation with the program of the positioning
device.
This servo amplifier has a real-time auto tuning function under model adaptive control. Performing
operation automatically adjusts gains. The optimum tuning results are provided by setting the
response level appropriate for the machine in parameter No. 2. (Refer to chapter 7)
(6) Home position return
Make home position return as required.
(7) Stop
In any of the following statuses, the servo amplifier interrupts and stops the operation of the servo
motor:
Refer to Section 3.9, (2) for the servo motor equipped with electromagnetic brake. Note that the stop
pattern of stroke end (LSP/LSN) OFF is as described below.
(a) Servo-on (SON) OFF
The base circuit is shut off and the servo motor coasts.
(b) Alarm occurrence
When an alarm occurs, the base circuit is shut off and the dynamic brake is operated to bring the
servo motor to a sudden stop.
(c) Emergency stop (EMG) OFF
The base circuit is shut off and the dynamic brake is operated to bring the servo motor to a sudden
stop. Alarm AL.E6 occurs.
(d) Stroke end (LSP/LSN) OFF
The servo motor is brought to a sudden stop and servo-locked. The motor may be run in the
opposite direction.
POINT
A sudden stop indicates that a stop is made with the droop pulses erased.