Figure 6-34 AC drive action diagram upon instantaneous power
failure
PA.59 Protection upon load becoming 0 Setting Range: 0～1 1
PA.60 Detection level of load becoming 0 Setting Range:
0.0%～100.0%
10.0%
PA.61 Detection time of load becoming 0 Setting Range:
0.0s～60.0s
1.0s
0：Disabled；1：Enabled
If protection upon load becoming 0 is enabled, when the output
current of the AC drive is lower than the detection level (PA.60)
and the lasting time exceeds the detection time (PA.61), 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.
PA.63 Over-speed detection value Setting Range:
0.0%～50.0%
20.0%
PA.64 Over-speed detection time Setting Range:
0.0s～60.0s
1.0s
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 PA.63 and the lasting time
exceeds the value of PA.64, the AC drive reports E-29 and acts according to the selected
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