HV580L Series Frequency Inverter
151
P9-63
Protection upon load becoming 0
Default
0
Setting Range
0
Disabled
1
Enabled
P9-64
Detection level of load becoming 0 Default
10.0%
Setting Range
0.0%
~
100.0% (rated motor current)
P9-65
Detection time of load becoming 0
Default
1.0s
Setting Range
0.0s
~
60.0s
If protection upon load becoming 0 is enabled, when the output current of the AC drive is lower than the
detection level (P9-64) and the lasting time exceeds the detection time (P9-65), the output frequency of the
AC drive automatically declines to 7% of the rated frequency. During the protection, the AC drive automatically
accelerates to the set frequency if the load resumes to normal.
P9-67
Over-speed detection value
Default
20.0%
Setting Range
0.0%
~
50.0%( maximum frequency)
P9-68
Over-speed detection time
Default
1.0s
Setting Range
0.0s
~
60.0s
This function is valid only when the AC drive runs in the CLVC mode. If the actual motor rotational speed
detected by the AC drive exceeds the maximum frequency and the excessive value is greater than the value
of P9-67 and the lasting time exceeds the value of P9-68, the AC drive reports Err43 and acts according to the
selected fault protection action.
If the over-speed detection time is 0.0s, the over-speed detection function is disabled.
P9-69
Detection value of too large
speed deviation
Default
20.0%
Setting Range
0.0%
~
50.0%(maximum frequency)
P9-70
Detection time of too large speed
deviation
Default
5.0s
Setting Range
0.0s
~
60.0s
This function is valid only when the AC drive runs in the CLVC mode. If the AC drive detects the deviation
between the actual motor rotational speed detected by the AC drive and the set frequency is greater than the
value of P9-69 and the lasting time exceeds the value of P9-70, the AC drive reports Err42 and according to
the selected fault protection action.
If P9-70 (Detection time of too large speed deviation) is 0.0s, this function is disabled.