Setting Parameters
01/02 AWB8230-1413GB
132
Automatic restart after a fault
With the default settings, each fault triggers a fault message. An
automatic restart is possible after the following fault messages
have occurred:
• Overcurrent (E01 to E04, up to four restart attempts within ten
minutes before a fault message is issued)
• Overvoltage (E07 and E15, up to three restart attempts within
ten minutes before a fault message is issued)
• Undervoltage (E09 and E16, up to 16 restart attempts within
ten minutes before a fault message is issued)
Under PNU b001, specify the restarting behaviour.
With PNU b002 and b003, specify the behaviour on mains failure
(
a
fig. 131 and fig. 132).
Under PNU b004, define how the DF6 frequency inverter responds
to an intermittent power supply failure or undervoltage.
With PNU b005, define whether the DF6 frequency inverter
attempts a restart up to 16 times or indefinitely in the event of an
intermittent power supply failure or undervoltage.
With PNU b006, you can activate phase failure detection. This
function can not be used if an RFI filter is installed upstream of the
frequency inverter.
Under PNU b007, define the frequency threshold below which the
frequency inverter accelerates the motor from 0 Hz on a restart
(
a
fig. 133 and fig. 134).
Warning!
When a fault has occurred, this function initiates an
automatic restart of the frequency inverter if a start signal
is present after the set waiting time has expired. Make
sure that an automatic restart does not present a danger
to personnel.
Figure 131: Duration of power failure less than set under PNU b002
U
LN
: Supply voltage
U
2
: Output voltage
n
M
: Motor speed
t
0
:
Duration of supply failure
a
Free run stop (coasting)
PNU b002
PNU b003
U
LN
U
2
n
M
t
O
a
Figure 132: Duration of power failure longer than set under PNU b002
U
LN
: Supply voltage
U
2
: Output voltage
n
M
: Motor speed
t
0
:
Duration of supply failure
a
Free run stop (coasting)
Figure 133: Motor frequency higher than set under PNU b007
U
LN
: Supply voltage
U
2
: Output voltage
n
M
: Motor speed
t
0
:
Duration of supply failure
a
Free run stop (coasting)
PNU b002
U
LN
U
2
n
M
t
O
a
U
2
U
LN
n
M
PNU b003
PNU b002
t
0
PNU b007
a
efesotomasyon.com - Klockner Moeller - inverter
