Toshiba VF-FS1 - Manual (Page 163)

E6581381
F-67
6
6.17.16 Evasion from Overvoltage and Imput phase failure
H : Power supply compensation filter
H : Inhibitor filter
H : Inhibitor gain
• Function
When connecting input reactor or voltage regulator or the impedance of power supply is too big, the
following phenomenon are happened.
•Overvoltage trip (QR, QR, QR)
•Input phase failure (GRJ)
•Unusual noise of inverter
If these phenomenon is occurred, the following parameter should be adjusted.
[Parameter setting]
Title Function Adjustment range Default setting
H Power supply compensation filter 0-9999 (µs) 0
H Inhibitor filter 0-9999 (µs) 442
H Inhibitor gain 0.0 – 300.0 (%) 100.0
At first, please set H as 442 and over. Next, set H and H as bigger value when no effect by
setting H as 1000 and over.