Vaidnor VDF650 Series User Manual page 200

VDF650 User Manual
In the prerequisite of no overvoltage occurrence, set P9-03 to a small value.
For small-inertia load, the value should be small. Otherwise, the system dynamic response
will be slow. For large-inertia load, the value should be large. Otherwise, the suppression
result will be poor and an overvoltage fault may occur.
If the overvoltage stall gain is set to 0, the overvoltage stall function is disabled. The
overvoltage stall protective voltage setting 100% corresponds to the base values in the
following table:
Table 6-7 Overvoltage stall protective voltage setting 100% corresponds to base values
Function Code
P9-05
P9-06
When the output current exceeds the overcurrent stall protective current during acceleration/
deceleration of the AC drive, the AC drive stops acceleration/deceleration and keeps the
present running frequency. After the output current declines, the AC drive continues to
accelerate/decelerate.
P9-05 (Overcurrent stall gain) is used to adjust the overcurrent suppression capacity of the
AC drive. The larger the value is, the greater the overcurrent suppression capacity will be. In
the prerequisite of no overcurrent occurrence, set tP9-05 to a small value.
For small-inertia load, the value should be small. Otherwise, the system dynamic response
will be slow. For large-inertia load, the value should be large. Otherwise, the suppression
result will be poor and overcurrent fault may occur.
If the overcurrent stall gain is set to 0, the overcurrent stall function is disabled.
Voltage Class
Single-phase 220 V
Three-phase 220 V
Three-phase 380 V
Three-phase 480 V
Three-phase 690 V
Parameter Name
Overcurrent stall gain
Overcurrent stall protective current
r iption of Function Codes
Desc
Corresponding Base Value
290 V
290 V
530 V
620 V
880 V
Setting Range
0–100
100%–200%
- 199 -
Default
20
150%