K/iK Series AC Servo Driver
47
In case of interference in reference voltage during speed control,
“-” in the upper left part of the panel operator will flash. When the
servo is ON, the servo motor might run at dead slow speed. For such
occasion, please refer to “Other Wiring” to take corresponding
measures.
(2) Operation steps under speed control mode (P
□
000=H.
□□
0
□
)
The following external input signal circuits and equivalent signal circuits must be configured.
Step
Content
Verification methods and supplementary instruction
1
Please check the power and input signal circuit again
and check the speed reference input (voltage between
V-REF and GND) is 0 V.
Please refer to the input signal circuit shown in the above figure.
2
Turn on the servo ON(/S-ON) input signal.
If the servo motor rotates at an extremely slow speed, see
“Adjustment of Reference Shift”,and use the reference voltage offset
to keep the servo motor from moving.
3
Increase the speed reference input voltage (between
V-REF and GND) slowly from 0 V with.
Factory setting: 150(r/min)/V.
4
Please validate the speed reference (Un004[r/min])
value input to servo driver.
See "Selection and Operation of Basic Mode" for relevant display
methods.
5
Please validate servo motor speed (Un000[r/min]).
See "Selection and Operation of Basic Mode" for relevant display
methods.
6
Please validate the values of Step 4 and 5 (Un004 and
Un000) are equivalent.
Change speed reference input voltage to validate whether Un004 =
Un000 is valid when there are multiple speed reference values.
7
Please validate the speed reference input or motor
rotation direction.
Refer to the following equation when speed reference input gain
(P
□
300) changes.
Un004
=
P
□
300[rpm/V]×(V-REF voltage)[V]
To change the motor rotation direction without changing speed
reference input voltage polarity, see “Rotation Direction Switching of
Motor”.
Start from Step 2 after change.
8
If the servo is OFF when the speed input reference is set
as 0 V, the trial operation of servo motor unit has
completed.
Note:
The position control is configured in command controller
When servo is under speed control and subject to position control in command controller, please validate the
following items after the said “Operation Steps under Speed Control Mode”.