Siemens SINAMICS G110D Operating Instructions Manual page 123

Parameterizing the automatic restart
Table 6- 42
Parameter
P1210 =
P1211 =
P1200 =
Table 6- 43
P1210 = 0: Automatic restart locked (this is a practical setting for a networked drive)
After the line supply voltage returns, possible faults must be acknowledged. After this, the ON
command must be switched-in again in order that the inverter starts.
P1210 = 1: Fault acknowledgment after ON command (P1211 locked)
After a power failure, the inverter automatically acknowledges all faults (it resets them), as soon as
the line supply voltage returns.
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SINAMICS G110D
Operating Instructions, 2009-05-15, A5E02385577A AB
Parameterizing the automatic restart
Automatic restart mode
0: Automatic restart locked
1: Fault acknowledgment after an ON command; P1211 locked (factory setting)
2: Automatic restart after a power failure; P1211 locked
3: Automatic restart after a line supply undervoltage or fault; P1211 enabled
4: Automatic restart after a line supply undervoltage; P1211 enabled
5: Automatic restart after a power failure and fault; P1211 locked
6: Automatic restart after a line supply undervoltage / failure or fault; P1211 locked
Number of automatic restart attempts [minimum 0 ... maximum 10]
3 (factory setting)
Starts inverter onto a spinning motor by rapidly changing the output frequency of the
inverter until the actual motor speed has been found. Then, the motor runs up to
setpoint using the normal ramp time.
0: Flying start disabled
1: Flying start always active, start --> setpoint
2: Flying start active if power on, fault, OFF2, start --> setp.
3: Flying start active if fault, OFF2, start --> setpoint
4: Flying start always active, only --> setpoint
5: Flying start active if power on, fault, OFF2, only --> setp.
6: Flying start active if fault, OFF2, only --> setpoint
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. Otherwise, overcurrent trips will occur.
Useful for motors with high inertia loads. Settings 1 to 3 search in both directions.
Settings 4 to 6 search only in direction of setpoint.
Principle of operation of the automatic restart
Faults due to a line supply undervoltage are not automatically acknowledged.
The motor does not automatically start.
The motor only starts to rotate again if an ON command is issued again after the line supply
voltage returns.
Functions
6.9 Technological functions
123