Shenzhen Hpmont Technology Co., Ltd.
Chapter 6 Function Introduction
HD3N Series User Manual V1.1
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Non-stop at instantaneous power loss (F19.12 - F19.15)
When voltage decreases or instantaneous under-voltage, HD3N compensates the voltage and
decrease output frequency. With load feedback energy, HD3N runs non-stop.
Ref. code
Function Description
Setting Range [Default]
F19.12
Non-stop at instantaneous power loss
0,1 [0]
If instantaneous power loss occurs when HD3N is
running (DC busbar voltage of main circuit V
DC
＜
F19.15), HD3N runs non-stop by decreasing output
frequency and maintain DC busbar voltage.
0: Forbid non-stop at instantaneous power loss.
1: Enable non-stop at instantaneous power loss.
Compensate to under-voltage.
F19.13
Voltage compensation gain for non-stop running
0.010 - 1.000 [0.500]
When F19.12 = 1, HD3N judges the difference between current DC busbar and F19.15 as well as voltage
compensation gain. By real time adjusts output frequency, HD3N maintains DC busbar voltage to avoid stop
due to under-voltage.
•
Under-voltage can not fully compensate if compensation gain and and load feedback energy is too small;
•
Output frequency will fluctuate even system oscillates if compensation gain and and load feedback
energy is too big.
F19.15
Voltage for action judgement at instantaneous power loss
400 - 670 [430V]
Restart after power failure (F19.16 - F19.17)
This function decides whether HD3N starts automatically or not and the waiting time before restart
when HD3N restarts after power failure.
Ref. code
Function Description
Setting Range [Default]
F19.16
Restart after power failure
0,1 [0]
0: Disabled.
1: Enabled. In the occation that power failure occurs to HD3N that is running,when HD3N is powered on
again and the run command is still valid, it will wait until time of F19.17 is finished and then restart the
motor.
F19.17
Waiting time for restart after power failure
0.00 - 10.00 [2.00s]
Voltage
Frequency
Time
Time
Bus voltage
Setting
frequency
Given
frequency
F19.15
6
