Emheater EM12 Series, Руководство пользователя

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EM12 User’s Manual 5. Description of Function Codes
75
Range
1 Enabled
bb-15
Off load detection level
Default
10.0%
Setting Range 0.0%~100.0% (rated motor current)
bb-16
Off load detection time
Default
1.0s
Setting Range
0.0s~60.0s
Ifoff load protection is enabled, when the output current of the frequency inverter is lower than the detection level
(bb-15) and the duration time exceeds the detection time (bb-16), the output frequency of frequency inverter
automatically declines to 7% of the rated frequency. During the protection, the frequency inverter automatically
accelerates to the set frequency if the load restore to normal.
bb-17
Over-speed detection value Default
20.0%
Setting Range 0.0%~50.0% (maximum frequency)
bb-18
Over-speed detection time Default 1.0s
Setting Range
0.0s~60.0s
This function is valid only when the frequency inverter runs in the VC+PG mode.
If the actual motor rotational speed detected by the frequency inverter exceeded the maximum frequency and the
excessive value is greater than the value of bb-17 and the lasting time exceeded the value of bb-18, the frequency
inverter reports Err43 and acts according to the selected fault protection action.
If the bb-18(over-speed detection time) is 0.0s, the over-speed detection function is disabled.
bb-19
Detection value of too large speed deviation
Default 20.0%
Setting Range
0.0%~50.0% (maximum frequency)
bb-20
Detection time of too large speed deviation
Default
5.0s
Setting Range 0.0s~60.0s
This function is valid only when the frequency inverter runs in the VC+PG mode.
If the frequency inverter detects the deviation over than bb-19 between the actual motor rotational and the
settingmotor frequency, and the duration time exceeds the value of bb-20, the frequency inverter reports Err42 and
act according to the selected fault protection action.
If bb-20 (Detection time of too large speed deviation) is 0.0s, this function is disabled.
bb-21
Action selection at instantaneous power failure Default 0
Setting
Range
0 Invalid
1 Decelerate
2 Decelerate to stop
bb-22
Judging voltage of instantaneous power failure restoring
Default 90.0%
Setting Range 60.0%
～
100.0%(standard bus voltage)
bb-23
judging time of Instantaneous power rise
Default
0.50s
Setting Range
0.00s
～
100.00s
bb-24
Judging voltage of instantaneous power failure
Default 80.0%
Setting Range
60.0%~100.0% (standard bus voltage)
Of instantaneous power failure or sudden voltage dip, the DC bus voltage of the Frequency inverter reduces. This
function enables the Frequency inverter to compensate the DC bus voltage reduction with the load feedback
energy by reducing the output frequency so as to keep the Frequency inverter running continuously.

If bb-21 = 1, when instantaneous power failure or sudden voltage dip, the frequency inverter decelerates until
DC bus voltage restore to normal, the frequency inverter accelerates to the set frequency. If the DC bus voltage
remains normal for the time exceeding the value set in bb-22, it is considered that the DC bus voltage restores