KE600 Inverter Parameter Description
132
The function is that, when instantaneous power off or voltage drops suddenly, the inverter will reduce
output speed to
decrease compensation voltage for DC bus which is generated by the load feedback
energy, so that keep the inverter running.
P9-59=1: When instantaneous power off or voltage drops suddenly, the inverter decelerates, when bus
voltage returns to normal, the inverter accelerates to the setting frequency and runs. Normal bus voltage
lasts for longer than the time set by P9-61 means that bus voltage returns to normal.
P9-59=2: When instantaneous power off or voltage drops suddenly, the inverter decelerates to stop.
Running frequency (Hz)
Time (t)
（
P9-59=2:DEC to stop
）
DEC time
4
DEC time
3
DEC time
3
DEC time 4
Recover ACC time
（
P9-59=1:DEC
）
Instantaneous power off
recover judgment voltage
P9-60
Time (t)
Running frequency (Hz)
Instantaneous power off voltage
recover judgment time P9-61
Instantaneous power off action
judgment voltage P9-62
Bus voltage
Instantaneous power off
recover judgment voltage
P9-60
Figure 6-23 Instantaneous stop action diagram
P9-63
Off-load protection selection
Factory default
0
Setting range
0
Invalid
1
Valid
P9-64
Off-load detection level
Factory default
10.0%
Setting range
0.0% ~ 100.0% (motor rated current)
P9-65
Off-load detection time
Factory default
1.0s
Setting range
0.0s ~ 60.0s
If off-load protection function is valid, when the output current is smaller than off-load detection level P9-64,
lasts for longer than off-load detection time P9-65, the output frequency will reduce to 7% of the rated
frequency automatically. During off-load protection, if load recovers, the inverter will recover and run with
the setting frequency automatically.
