Troubleshooting; Precaution Statement; Vibration At Higher Area Than Near The Base Frequency - Toshiba TOSVERT VF Series Manual

3. TROUBLESHOOTING

If you have any problems by setting according to "Procedure for IE3 motor parameters setting" of chapter 2, please refer
to this section or the instruction manual of each models.
If the problem is not solved, please contact our distributor.

3.1. Precaution statement

- In case of IE3 motors, Comparerd with the current motor, the slip is reduced and there is a tendency that the
rotational speed of motor increases at the same frequency.
If that becomes a problem, the adjustment of the frequency command and the slip frequency gain are required.
- In case of the primary resitance value is low and the current at the start-up is large compared with the current motor,
please reduce the torque boost value or the parameter of the primary resistance.
In addition, please also refer to the website of the Japan Electrical Manufacturers' Association (JEMA).

3.2. Vibration at higher area than near the Base frequency

If the motro vibrates at near the Base frequency or higher area than it, please change the following settings for
sutabilization.
3.2.1 VF-nC3, VF-AS1, VF-PS1, VF-S15*
*(In case of the software version of VF-S15 is V112 or V114, proceed to 3.2.2 section)
- For VF-S15, VF-nC3
Change f458 (Motor specific coefficient 2) to the recommended value described in Table 3.1.
If the problem is not solved, reduce f458 in steps of 5 by range of minimum value described in Table 3.1.
- For VF-AS1, VF-PS1
Set "1" to f495, change f458 (Current control proportional gain) to the recommended value described in Table
3.2.
If the problem is not solved, reduce f458 in steps of 5 by range of minimum value described in Table 3.2.
- For VF-FS1
Adjustment is not required.
Table 3.1 VF-S15 (Software version: V110 or earlier version / V116 or later version) / VF-nC3
Type
pt
0,1,2,7
VF-S15
4,5
0,1,2
VF-nC3
f458
(Recommended value)
65
3 45
－
65
3 45
f458
(Minimum value)
30
30
－
30
30
* "-" in this table, adjustment is not required.
10
Ｅ６５８２０５６
f458
(Default setting)
0
0
―
0
0