Siemens SINAMICS S120 Function Manual page 299

Startup attempts (p1211) and wait time (p1212)
p1211 is used to specify the number of startup attempts. The number is internally
decremented after each successful fault acknowledgement (line supply voltage must be re-
applied or the infeed signals that it is ready). Fault F07320 is signaled if the number of
parameterized startup attempts is exceeded.
When p1211 = x, x + 1 startup attempts are made.
Note
A startup attempt immediately starts when the fault occurs.
The faults are automatically acknowledged in intervals of half the waiting time p1212.
After successfully acknowledgement and the voltage returns, then the system is
automatically powered-up again.
The startup attempt has been successfully completed if the flying restart and the motor
magnetization (induction motor) have been completed (r0056.4 = 1) and one additional
second has expired. The starting counter is only reset to the initial value p1211 after this
time.
If additional faults occur between successful acknowledgement and the end of the startup
attempt, then the startup counter, when it is acknowledged, is also decremented.
Monitoring time line supply return (p1213)
The monitoring time starts when the faults are detected. If the automatic acknowledgements
are not successful, the monitoring time runs again. If the drive has not successfully started
again after the monitoring time has expired (flying restart and motor magnetization must
have been completed: r0056.4 = 1), fault F07320 is output. The monitoring is deactivated
with p1213 = 0.
If p1213 is set lower than the sum of p1212, the magnetization time r0346 and the additional
delay time due to flying restart, then fault F07320 is generated at each restart. p1210 = 1
prevents a restart The monitoring time must be extended if the faults that occur cannot be
immediately and successfully acknowledged (e.g. when faults are permanently present).
Commissioning
1. Activate the function for drive object VECTOR and X_INF (all drive objects "Infeed"; i.e.
2. Set the startup attempts (p1211).
3. Set the wait times (p1212, p1213).
4. Check the function.
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
A_INF, B_INF, S_INF).
– Automatic restart: Set mode (p1210).
– Flying restart: Activate function (p1200).
Basic functions
7.10 Automatic restart
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