Siemens SINAMICS G120 Operating Instructions Manual page 302

Low voltage converter with the cu240b-2 and cu240e-2 control units
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Advanced commissioning
6.7 Application-specific functions
Parameter for setting the automatic restart
Parameter
p1210
p1211
p1212
302
Explanation
Automatic restart mode (factory setting: 0)
0:
Disable automatic restart.
1:
Acknowledge all faults without restarting.
4:
Restart after power failure without further restart attempts.
6:
Restart after fault with further restart attempts.
14:
Restart after power failure after manual acknowledgement.
16:
Restart after fault after manual acknowledgement.
26:
Acknowledgement of all faults and restart with ON/OFF1 = 1 command.
Automatic restart start attempts (factory setting: 3)
This parameter is only effective for the settings p1210 = 4, 6, 14, 16, 26.
You define the maximum number of start attempts using p1211. After each successful
acknowledgement, the inverter decrements its internal counter of start attempts by 1.
p1211 = 0 or 1: The inverter only tries to start once. After an unsuccessful start attempt,
the inverter issues fault F07320.
p1211 = n, n > 1: The inverter tries to start n-times The inverter outputs fault F07320 if
the nth starting attempt was unsuccessful.
The inverter sets the start attempt counter back again to the value of p1211, if one of
the following conditions is fulfilled:
After a successful start attempt, the time in p1213[1] has expired.
After fault F07320, switch off the motor (OFF1) and acknowledge the fault.
You change the start value p1211 or the mode p1210.
Automatic restart wait time start attempt (factory setting: 1.0 s)
This parameter is only effective for the settings p1210 = 4, 6, 26.
Examples for setting this parameter:
1. After a power failure, a certain time must elapse before the motor can be switched-
on, e.g. because other machine components are not immediately ready. In this case,
set p1212 longer than the time, after which all of the fault causes have been re-
moved.
2. In operation, the inverter develops a fault condition. The lower you select p1212,
then the sooner the inverter attempts to switch-on the motor again.
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC

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