Chapter 6 Function Introduction Shenzhen Hpmont Technology Co., Ltd
―102― HD30 Series Inverters User Manual
Trip-free operation during momentary power loss (F19.12
F19.15)
The inverter can automatically perform low-
voltage compensation when the voltage decreases or
instantaneous under-
voltage occurs. The inverter can continue to operate without tripping by
reducing its output frequency and feedback energy via motor.
No. Name Description Range
factory setting
F19.12 Trip-free selection at momentary power loss 0,1
0
0: This function is disabled.
1: This function is enabled. And low-voltage
compensation is activated.
• If the bus voltage is lower than F19.15, the
inverter will decrease the operating frequency
according to F19.13.
• If the bus voltage is higher than F19.15 and
maintains the voltage rise diagnosis time
(F19.14), the inverter will reset the setting
frequency to run. Otherwise, the inverter will
continue to decrease the running frequency.
F19.13 Deceleration time at voltage compensation 0.1
6000.0s
5.0
If F19.13 is set too big, the feedback energy of motor will be too small to achieve voltage compensation
effect. If F19.13 is set too small, the feedback energy of motor will be too large and overvoltage
protection might be activated.
F19.14 Voltage rise diagnosis time of trip-free operation at
momentary power loss
0.00
10.00s
0.10
F19.15 Reference voltage of trip-free operation at momentary power
0
999V
dependent on inverter
Restart after power failure (F19.16
F19.17)
This function decides in different control modes whether the inverter starts automatically or not and
the delay time for restart when the inverter is switched off and then switched on.
No. Name Description Range
factory setting
Restart after power failure
0: This function is disabled.
1: This function is enabled. In the terminal two-wire control mode and suddenly power failure during
running process, when the inverter is powered on again and the terminal is still enabled, it will wait
certain time defined by F19.17 and then start operation automatically.
Delay time for restart after power failure
Time
Time
Voltage
F19.15
F19.14
Bus voltage
Setting freq.
Output freq.
Acceleration
time
F19.13
To Next Page
Loading...
Need help?
General