Hitachi SJ Series, User Manual

Page: 356 / 786

12-16-7
Chapter 12 Inverter Function
Parameter
Item Parameter Data Description
Selection of
instantaneous power
failure retry
[bb-20] 0~16 / 255
Detects a decrease in the control power supply and
restarts the motor when the power supply is recovered.
When 0 is specified, the inverter immediately trips when
an instantaneous power failure occurs.
Selection of
under-voltage retry
[bb-21] 0~16 / 255
Detects a decrease in the main power supply and
restarts the motor when the power supply is recovered.
When 0 is specified, the inverter immediately trips when
an under-voltage condition occurs.
Selection of
instantaneous power
failure/under-voltage
retry
[bb-24]
00 Restarts with 0 Hz at retry.
01 Restarts with speed matching at retry.
02 Restarts with frequency pull-in at retry.
04
Restarts with speed matching at retry, and trips after
deceleration stop.
Allowable
instantaneous power
failure time
[bb-25] 0.3~25.0 (s)
Restarts if the instantaneous power failure is within the
set time.Trips if the instantaneous power failure exceeds
the specified time.
Retry wait time after
instantaneous power
failure/under-voltage
[bb-26]
0.3~100.0
(s)
Sets the time before restarting.
Selection of
instantaneous power
failure/under-voltage
trip during stopping
[bb-27]
00 Disabled
01 Enabled
02
Disabled during stopping and during deceleration stop
after the operation command has been turned off.
Selection of output
terminal function
[CC-01]~[CC-05]
017
020
021 017: Outputs [AL] Alarm signal.
020: Outputs [IP] Instantaneous power failure signal
021: Outputs [UV] Under-voltage signal.
Selection of relay
output terminal
function
[CC-06]
Selection of relay
output terminal
function
[CC-07]