N700 Operating Instructions and Parts Manual
8. Explanation of b-Group
77
(3) Non-stop selection at instantaneous power failure (Stopping deceleration at power OFF)
①
This is a function that decelerates and stops the inverter not to exceed over voltage level
(0V-LADSTOP : b023) where power is off while running.
②
When selection of non-stop function at instantaneous power failure is valid (b021), if
power stop during running and at voltage less than starting voltage of non-stop function at
instantaneous power failure, at first the inverter would decelerate at width of starting
deceleration at non-stop instantaneous power failure (b025) in width of frequency, and
then it would decelerate at non-stop deceleration time at instantaneous power failure
(b024). If it becomes over voltage due to generating during deceleration (more than non-
stop 0V-LADSTOP level at instantaneous power failure : b022), the condition would be in
LAD stop until over voltage is released.
Code
Function name
Initial
value
Unit
Setting range
Contents
0
Non-stop function at instantaneous
power failure invalid
b021
Non-stop function selection at
instantaneous power
Failure
0 -
1
Non-stop function at instantaneous
power failure valid
b022
Starting voltage of non-stop
function at instantaneous
power failure
0.0 V 0.0~999.9
b023
Non-stop instantaneous
power failure LADSTOP level
0.0 V 0.0~999.9
b024
Non-stop deceleration time at
instantaneous power failure
1.00
Sec.
0.01~3600 0.01~99.99/100.0~999.9/1000~3600
b025
Starting deceleration width at
instantaneous power failure
0.00
Hz
0.00~10.00
Table 8- 16 Non-stop selection at instantaneous power failure (Stopping deceleration at power
OFF) (b021~b025)
Fig. 8- 6 The waveform for Non-stop selection at instantaneous power failure
