Siemens SINAMICS G120P, Operating Instructions Manual

Page: 389 / 496

Functions
7.7 Application-specific functions
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
389
Parameters for setting the automatic restart
Parameter Explanation
p1210
Automatic restart mode (factory setting 0)
0:
1:
4:
6:
14:
16:
26:
Disable automatic restart.
Acknowledge all faults without restarting.
Restart after power failure without further restart attempts.
Restart after fault with further restart attempts.
Restart after power failure after manual acknowledgement.
Restart after fault after manual acknowledgement.
Acknowledgement of all faults and restart with ON/OFF1 = 1 command.
p1211 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.
For p1211 = n, up to n + 1 start attempts are made. Fault F07320 is output after n + 1
unsuccessful start attempts.
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 the motor off (OFF1) and acknowledge the fault.
•
You change the start value p1211 or the mode p1210.
p1212 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, the
sooner the inverter attempts to switch the motor on again.
p1213[0] Automatic restart monitoring time (Factory setting: 60 s)
This parameter is only effective for the settings p1210 = 4, 6, 14, 16, 26.
With this monitoring function, you limit the time in which the inverter may attempt to
automatically switch the motor on again.
The monitoring function starts when a fault is identified and ends with a successful start
attempt. If the motor has not successfully started after the monitoring time has expired,
fault F07320 is signaled.
Set the monitoring time longer than the sum of the following times:
+ p1212
+ Time that the inverter requires to start the motor on the fly.
+ Motor magnetizing time (p0346)
+ 1 second
You deactivate the monitoring function with p1213 = 0.