Manually Adjust Motor Current Detection Signal Offset (Fn00F) - YASKAWA SGD7S Product Manual

13.4 Utility Function (Fn) Operations on the Panel Operator

13.4.14 Manually Adjust Motor Current Detection Signal Offset (Fn00F)

13.4.14 Manually Adjust Motor Current Detection Signal Offset
(Fn00F)
Refer to the following section for information on this utility function other than the procedure.
6.16.2 Manual Adjustment on page 6-103
Step
1
2
3
4
5
6
7
8
9
10
11
*
Examples of the Amount of Change to Adjust Offsets
• First time: 10 units at a time
• Second time: 5 units at a time
• Third time: 1 unit at a time
The above values are guidelines. Vary the amount of change and the number of repetitions according to your sys-
tem.
13-22
Panel Display after
Operation
MODE/SET
MODE/SET
MODE/SET
MODE/SET
MODE/SET
MODE/SET
MODE/SET
MODE/SET
MODE/SET
MODE/SET
Reduce the amount by which you change the offsets each time and repeat steps 3 to 10* to fine-tune
the amounts of offset.
Keys
Press the MODE/SET Key to enter Utility Function
Mode.
DATA/
Press the UP Key or DOWN Key to display Fn00F.
DATA/
First you adjust the offset for phase U (Cu1-o). Press
the DATA/SHIFT Key for approximately one second.
DATA/ The display shown at the left will appear.
Press the DATA/SHIFT Key. The amount of offset for
phase U will be displayed.
DATA/
Press the UP Key or DOWN Key to change the
amount of offset. Change the setting by approximately
10 units at a time in the direction that reduces the
torque ripple to find the value that minimizes the torque
DATA/
ripple, and set that value.
Adjustment range: -512 to +511
Press the DATA/SHIFT Key. The display shown on the
left will appear again.
DATA/
Next you adjust the offset for phase V (Cu2-o). Press
the MODE/SET Key for approximately one second.
The display shown at the left will appear.
DATA/
Press the DATA/SHIFT Key. The amount of offset for
phase V will be displayed.
DATA/
Press the UP Key or DOWN Key to change the
amount of offset. In the same way as for the phase-U
adjustment, change the setting by approximately 10
units at a time in the direction that reduces the torque
ripple to find the value that minimizes the torque ripple,
DATA/
and set that value.
Adjustment range: -512 to +511
Press the DATA/SHIFT Key for approximately one sec-
ond. Cu2-o will be displayed, and then Fn00F will be
DATA/ displayed again.
Operation