Unitronics UMI-B1 UL Series Operation Manual page 89

UMI-B1 UL Series Inverter
Function
Name
code
restart
mode
Multi-step
P10.37
time unit
selection
P11 Group Protective parameters
Phase loss
P11.00
protection
Frequency
-decreasin
P11.01 g at
sudden
power loss
Frequency
decreasing
P11.02 ratio at
sudden
power loss
Detailed instruction of parameters
running (cause by the stop command, fault or
power loss), run from the first stage after
restart.
1: Continue to run from the stop frequency;
stop during running (cause by stop command
and fault), the inverter will record the running
time automatically, enter into the stage after
restart and keep the remaining running at the
setting frequency.
0: Seconds; the running time of all stages is
counted by second
1: Minutes; the running time of all stages is
counted by minute
0x00–0x11
LED ones:
0: Input phase loss protection disable
1: Input phase loss protection enable
LED tens:
0: Output phase loss protection disable
1: Output phase loss protection enable
0: Enabled
1: Disabled
Setting range: 0.00Hz/s–P00.03 (the Max.
frequency)
After the power loss of the grid, the bus
voltage drops to the sudden
frequency-decreasing point, the inverter
begin to decrease the running frequency at
P11.02, to make the inverter generate power
again. The returning power can maintain the
bus voltage to ensure a rated running of the
inverter until the recovery of power.
Voltage degree
Frequency-decreasing
220V 460V
260V 530V
87
Function parameters
Default
Modify
value
◎
0
○
0x10
○
0
10.00
○
Hz/s