Operating instructions
MM420 Parameter List 04/02
MICROMASTER 420 Parameter List
66 6SE6400-5BA00-0BP0
P1210 Automatic restart Min: 0
CStat: CUT Datatype: U16 Unit: - Def: 1
P-Group: FUNC Active: first confirm QuickComm. No Max: 5
Configures automatic restart function
Possible Settings:
0 Disabled
1 Trip reset after power on, P1211 disabled
2 Restart after mains blackout, P1211 disabled
3 Restart after mains brownout or fault, P1211 enabled
4 Restart after mains brownout, P1211 enabled
5 Restart after mains blackout and fault, P1211 disabled
Dependency:
Automatic restart requires constant ON command via a digital input wire link.
Caution:
P1210 > 2 can cause the motor to restart automatically without toggling the ON command !
Notice:
A "mains brownout" is where the power in interrupted and re-applied before the display on the BOP (if one
is fitted to the inverter) has gone dark (a very short mains break where the DC link has not fully collapsed).
A "mains blackout" is where the display has gone dark (a long mains break where the DC link has fully
collapsed) before the power is re-applied.
P1210 = 0:
Automatic restart is disabled.
P1210 = 1:
The inverter will acknowledge (reset) faults i.e. it will reset a fault when the is re-applied. This means the
inverter must be fully powered down, a brownout is not sufficed. The inverter will not run until the ON
command has been toggled.
P1210 = 2:
The inverter will acknowledge the fault F0003 at power on after blackout and restarts the drive. It is
necessary that the ON command is wired via digital input (DIN).
P1210 = 3:
For these settings it is fundamental that the drive only restarts if it has been in a RUN state at the time of the
faults (F0003, etc.). The inverter will acknowledge the fault and restarts the drive after a blackout or
bronwout. It is necessary that the ON command is wired via digital input (DIN).
P1210 = 4:
For these settings it is fundamental that the drive only restarts if it has been in a RUN state at the time of the
fault (F0003). The inverter will acknowledge the fault and restarts the drive after a blackout or bronwout. It is
necessary that the ON command is wired via digital input (DIN).
P1210 = 5:
The inverter will acknowledge the faults F0003 etc. at power on after blackout and restarts the drive. It is
necessary that the ON command is wired via digital input (DIN).
Following table presents an overview of parameter P1210 and its functionality.
Fault acknowledge
Blackout
F0003
P1210
0
−− − −
1
−−
2
+
−−
+
3
++ +
−
4
++
−
−−
−
−
5
+
−
−−
−
+
Fault acknowledge
Fault acknowledge Fault acknowledge
Fault acknowledge
Fault acknowledge
Fault acknowledge
Fault acknowledge
Fault acknowledge
Fault acknowledge Fault acknowledge
restart
restart
restart
restart
restart
restart restart
restart
restart
Brownout
F0003
All other faults
without
power cycle
ON command
enabled during
Power OFF
−
−−
−
−
−
−
+
−
−−
−
Fault acknowledge
restart
All other faults
with
power cycle
+
Fault acknowledge
restart
Flying start must be used in cases where the motor may still be turning (e.g. after a short mains break) or
can be driven by the load (P1200).
Level:
2










