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4. OPERATION
4.2.3
Speed control mode
(1) Power on
(a) Switch off the servo on (SON) signal.
(b) When main circuit power/control circuit power is switched on, "r (motor speed)" appears on the
parameter unit.
(2) Test operation
Using jog operation in the "test operation mode" of the Parameter unit, make sure that the servo motor
operates. (Refer to Section 6.8.2.)
(3) Parameter setting
Set the parameters according to the structure and specifications of the machine. Refer to Chapter 5 for
the parameter definitions and to Sections 6.5 for the setting method.
Parameter
Name
Setting
Description
No. 0
Select the control mode
2
First digit
: Speed control mode
No. 2
Auto tuning
104
First digit
: Middle response (initial value) is selected.
Second digit : Ordinary machine
Third digit
: Used
No. 8
Internal speed command 1
1000
Set 1000r/min.
No. 9
Internal speed command 2
1500
Set 1500r/min.
No. 10
Internal speed command 3
2000
Set 2000r/min.
No. 11
Acceleration time constant
1000
Set 1000ms.
No. 12
Deceleration time constant
500
Set 500ms.
No. 13
S-pattern acceleration/deceleration
time constant
0
Not used
After setting the above parameters, switch power off once. Then switch power on again to make the
set parameter values valid.
(4) Servo on
Switch the servo on in the following procedure:
(a) Switch on main circuit/control power.
(b) Switch on the servo on signal (SON) (short SON-SG).
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.
