Chapter 12 Description of Parameter SettingsME300
12.1-07-8
Situation 5: Pr.07-13 = 2 and power recovers after the DC BUS voltage is lower than the Lv level.
The drive decelerates to 0 Hz. The DC BUS voltage continues to decrease until the voltage is lower
than the Lv level, and then the drive disconnects the soft start relay. The soft start relay closes again
after the power recovers and the DC BUS voltage is higher than the Lv return level. When the DC
BUS voltage is higher than the dEb return level, the drive maintains the frequency for three seconds
and starts to accelerate linearly, and the dEb warning on the keypad clears automatically.
Dwell Time at Acceleration
Default: 0.00
Settings 0.00–600.00 sec.
Dwell Time at Deceleration
Default: 0.00
Settings 0.00–600.00 sec.
Dwell Frequency at Acceleration
Default: 0.00
Settings 0.00–599.00 Hz
Dwell Frequency at Deceleration
Default: 0.00
Settings 0.00–599.00 Hz
In heavy load situations, the Dwell temporarily maintains stable output frequency. Use this
parameter for cranes, elevators, and so on.
When the load is heavier, use Pr.07-15–Pr.07-18 to avoid OV or OC protection.
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