Mitsubishi Electric GENERAL PURPOSE AC SERVO MR-E- A/AG Instruction Manual page 271

15. MR-E- AG SERVO AMPLIFIER COMPATIBLE WITH ANALOG INPUT
(4) Servo-on
Switch the servo-on in the following procedure:
1) Switch on power supply.
2) Switch on the servo-on (SON).
When placed in the servo-on status, the servo amplifier is ready to operate and the servo motor is
locked.
(5) Start
Using speed selection 1 (SP1) and speed selection 2 (SP2), choose the servo motor speed. Turn on
forward rotation start (ST1) to run the motor in the forward rotation (CCW) direction or reverse
rotation start (ST2) to run it in the reverse rotation (CW) direction. At first, set a 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, load factor, etc. of the servo motor.
When machine operation check is over, check automatic operation with the host controller or the like.
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) 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
simultaneous ON or simultaneous OFF of stroke end (LSP, LSN) OFF and forward rotation start
(ST1) or reverse rotation start (ST2) has the same stop pattern 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.
(e) Simultaneous ON or simultaneous OFF of forward rotation start (ST1) and reverse rotation start
(ST2)
The servo motor is decelerated to a stop.
POINT
A sudden stop indicates deceleration to a stop at the deceleration time
constant of zero.
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