3–34

“B” Group: Fine Tuning FunctionsInstantaneous Power Failure / Under-voltage Alarm

Configuring

Drive Parameters

 

 

Use parameter B004 to disable or enable the instantaneous power failure / undervoltage alarm. When the alarm is enabled, parameter settings B001 (Selection of Automatic Restart Mode) and B002 (Allowable Under-voltage Power Failure Time) are not valid.

 

 

“B” Function

Run

 

Defaults

 

 

 

 

 

Mode

 

 

 

Func.

Name /

 

 

–FE(F)

–FU

 

 

Description

Edit

Units

Code

SRW Display

Lo Hi

(EU)

(USA)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B001

Selection of automatic

Select inverter restart method,

✘ ✔

00

00

 

restart mode

 

four option codes:

 

 

 

 

 

 

 

00... Alarm output after trip,

 

 

 

 

 

IPS POWR

ALM

 

 

 

 

 

no automatic restart

 

 

 

 

 

 

 

 

 

 

 

 

 

 

01... Restart at 0Hz

 

 

 

 

 

 

 

02... Resume operation after

 

 

 

 

 

 

 

frequency matching

 

 

 

 

 

 

 

03... Resume previous freq.

 

 

 

 

 

 

 

after freq. matching, then

 

 

 

 

 

 

 

decelerate to stop and display

 

 

 

 

 

 

 

trip info.

 

 

 

 

 

 

 

 

 

 

 

B002

Allowable under-

The amount of time a power

✘ ✔

1.0

1.0

sec.

 

voltage power failure

input under-voltage can occur

 

 

 

 

 

time

 

without tripping the power

 

 

 

 

 

 

 

failure alarm. Range is 0.3 to

 

 

 

 

 

IPS Time 0001.0s

 

 

 

 

 

25 sec. If under-voltage exists

 

 

 

 

 

 

 

 

 

 

 

 

 

 

longer than this time, the

 

 

 

 

 

 

 

inverter trips, even if the restart

 

 

 

 

 

 

 

mode is selected.

 

 

 

 

 

 

 

 

 

 

 

B003

Retry wait time before

Time delay after under-voltage

✘ ✔

1.0

1.0

sec.

 

motor restart

 

condition goes away, before

 

 

 

 

 

 

 

the inverter runs motor again.

 

 

 

 

 

IPS Wait 0001.0s

 

 

 

 

 

Range is 0.3 to 100 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B004

Instantaneous power

Two option codes:

✘ ✔

00

00

sec.

 

failure / under-voltage

00... Disable

 

 

 

 

 

trip alarm enable

 

01... Enable

 

 

 

 

 

 

 

 

 

 

 

 

 

IPS TRIP

OFF

 

 

 

 

 

 

 

 

 

 

 

 

B005

Number of restarts on

Two option codes:

✘ ✔

00

00

sec.

 

power failure / under-

00... Restart 16 times

 

 

 

 

 

voltage trip events

01... Always restart

 

 

 

 

 

 

 

 

 

 

 

 

 

IPS RETRY

16