Siemens SINAMICS S120 Function Manual page 189

Automatic restart mode
Table 6-6
0
1
4
6
Starting attempts (p1211) and waiting time (p1212)
p1211 is used to specify the number of starting 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 starting attempts are made.
Note
A start attempt immediately starts when the fault occurs.
The faults are automatically acknowledged in intervals of half the waiting time p1212.
After successfully acknowledgment and the voltage returns, then the system is automatically
powered-up again.
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
Automatic restart mode
p1210 Mode
Disables automatic restart
Acknowledges all faults without
restarting
Automatic restart after line
supply failure, no additional start
attempts
Restart after any fault with
additional start attempts
6.7 Automatic restart (vector, servo, infeed)
Meaning
Automatic restart inactive
When p1210 = 1, faults that are present are
acknowledged automatically when their cause is
rectified. If further faults occur after faults have been
acknowledged, then these are also again
automatically acknowledged. A minimum time of
p1212 + 1s must expire between successful fault
acknowledgement and a fault re-occurring if the
signal ON/OFF1 (control word 1, bit 0) is at a HIGH
signal level. If the ON/OFF1 signal is at a LOW
signal level, the time between a successful fault
acknowledgement and a new fault must be at least
1s.
For p1210 = 1, fault F07320 is not generated if the
acknowledge attempt failed (e.g. because the faults
occurred too frequently).
For p1210 = 4, an automatic restart is only carried
out if in addition fault F30003 occurred at the Motor
Module or there is a high signal at binector input
p1208[1], or in the case of an infeed drive object
(x_Infeed) F06200 has occurred. If additional faults
are present, then these faults are also
acknowledged and when successfully
acknowledged, the starting attempt is continued.
When the 24 V power supply of the CU fails, this is
interrupted as a line supply failure.
When p1210 = 6, an automatic restart is carried out
after any fault or when p1208[0] = 1. If the faults
occur one after the other, then the number of start
attempts is defined using p1211. Monitoring over
time can be set using p1213.
Basic functions
189