Siemens SINAMICS G120 List Manual page 181

Value: 0:
1:
4:
6:
14:
16:
26:
Recommendation: For brief line supply failures, the motor shaft may still be rotating when restarting. The "flying restart" function (p1200)
might need to be activated to restart while the motor shaft is still rotating.
Dependency: The automatic restart requires an active ON command (e.g., via a digital input). If, for p1210 > 1, there is no active
ON command, then the automatic restart is interrupted.
When using an Operator Panel in the LOCAL mode, then there is no automatic start.
For p1210 = 14, 16, a manual acknowledgment is required for an automatic restart.
Refer to: p0840, p0857
Refer to: F30003
Danger: If the automatic restart is activated (p1210 > 1) if there is an ON command (refer to p0840), the drive is switched on
as soon as any fault messages that are present can be acknowledged. This also occurs after the line supply returns
or the Control Unit boots if the DC link voltage is present again. This automatic switching-on operation can only be
interrupted by withdrawing the ON command.
Notice: A change is only accepted and made in the state "initialization" (r1214.0) and "wait for alarm" (r1214.1). When faults
are present, therefore, the parameter cannot be changed.
For p1210 > 1, the motor is automatically started.
Note: For p1210 = 1:
Faults that are present are automatically acknowledged. If new faults occur after a successful fault acknowledgment,
then these are also automatically acknowledged again. p1211 has no influence on the number of acknowledgment
attempts.
For p1210 = 4:
An automatic restart is only performed if fault F30003 has occurred on the power unit. If additional faults are present,
then these faults are also acknowledged and when successful, starting continues. If, for external 24 V power supplies
of the Control Unit, additional faults subsequently occur, these are no longer interpreted as line faults and are
therefore also not acknowledged.
For p1210 = 6:
An automatic restart is carried out if any fault has occurred.
For p1210 = 14:
as for p1210 = 4. However, active faults must be manually acknowledged.
For p1210 = 16:
as for p1210 = 6. However, active faults must be manually acknowledged.
For p1210 = 26:
as for p1210 = 6. For this mode, the switch-on command can be entered with a delay. The restart is interrupted with
either OFF2 or OFF3. Alarm A07321 is only displayed if the cause of the fault has been removed and the drive is
restarted by setting the switch-on command.
p1211 Automatic restart start attempts / AR start attempts
Access level: 3
Can be changed: U, T
Unit group: -
Min
0
Description: Sets the start attempts of the automatic restart function for p1210 = 4, 6, 14, 16, 26.
Dependency: A change is only accepted and made in the state "initialization" (r1214.0) and "wait for alarm" (r1214.1).
Refer to: p1210, r1214
Refer to: F07320
Notice: After fault F07320 occurs, the switch-on command must be withdrawn and all of the faults acknowledged so that the
automatic restart function is re-activated.
After a complete power failure (blackout) the start counter always starts with the counter value that applied before the
power failure, and decrements this start attempt by 1. If a further attempt to acknowledge is started by the automatic
restart function prior to power failure, e.g. when the CU remains active on power failure longer than the time p1212 /
2, the fault counter will already have been decremented once. In this case, the start counter is thus decreased by the
value 2.
SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
Inhibit automatic restart
Acknowledge all faults without restarting
Restart after line supply failure w/o additional start attempts
Restart after fault with additional start attempts
Restart after line supply failure following man. acknowledgment
Restart after fault following manual acknowledgment
Acknowledging all faults and reclosing for an ON command
Calculated: -
Scaling: -
Unit selection: -
Max
10
2 Parameters
2.2 List of parameters
Data type: Unsigned16
Dyn. index: -
Func. diagram: -
Factory setting
3
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