09/01 AWB8230-1412GB
Automatic restart after a fault
97
Automatic restart after a fault
With the default settings, each malfunction triggers a fault
message. An automatic restart is possible after the following fault
messages have occurred:
• Overcurrent (PNU E01 to E04, up to four restart attempts within
10 minutes before a fault message is issued)
• Overvoltage (PNU E07 and E15, up to three restart attempts
within 10 minutes before a fault message is issued)
• Undervoltage (PNU E09, up to 16 restart attempts within 10
minutes, then a fault message is issued)
Warning!
When a fault has occurred, this function initiates an auto-
matic restart of the frequency inverter if a start command
is present after the set waiting time has expired. Ensure
an automatic restart does not present a danger for
personnel.
PNU Name Adjustable in
RUN mode
Value Function WE
b01 Restart mode – 00 The above fault messages are displayed when the associated fault occurs
(restart is not activated).
00
01 A restart at the start frequency after the time set under PNU b03 has
elapsed.
02 After the time set under PNU b03 has elapsed, the inverter synchronizes
to the current motor rotation speed and the motor accelerates for the set
acceleration time.
03 After the time set under PNU b03 has elapsed, the inverter synchronizes
to the current motor rotation speed and the motor brakes for the set dece-
leration time. A fault message is then displayed.
b02 Permissible
power failure
duration
– 0.3 to 25 s Here, you set a time duration during which the undervoltage condition is
met without the corresponding fault message in PNU E09 being initiated.
1.0
b03 Delay time
until restart
– 0.3 to 100 s Here, set a time which is to expire before an automatic restart is initiated
after a fault signal. This time can be used in conjunction with the FRS func-
tion. During the delay, the following message appears on the LED display:
1.0
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