Siemens SINAMICS S120 Operating Instructions Manual page 53

Synchronization settings can be made under "Additional settings":
Synchronization (factory setting: None)
● None
The times for the AOP and drive unit are not synchronized.
● AOP->Drive
– If you activate this option, the AOP and drive unit are synchronized immediately
– The current AOP time is transferred to the drive unit every time the AOP is started.
– Depending on the set synchronization interval, the current AOP time is transferred to
Note
Flashing "S"
If the AOP detects a difference between RAM and ROM during synchronization to the
drive unit, this is indicated by a flashing "S" at the top right in the display or, if operator
input and/or parameter assignment has been disabled, by a flashing key symbol.
● Drive->AOP
– If you activate this option, the AOP and drive unit are synchronized immediately
– The current drive unit time is transferred to the AOP every time the AOP is started.
– Depending on the set synchronization interval, the actual drive unit time is transferred
Note
Time-of-day master
The time in the drive must be set by the time-of-day master (e.g. SIMATIC).
Synchronization interval
The interval for time synchronization is set from 1 hour (factory setting) to 99 hours.
For the interval, the time in the AOP from the time of the last change of the interval is
decisive.
Cabinet Modules Operator Panel AOP30
Operating Instructions, 04/2014, A5E03263551A
whereby the current AOP time is transferred to the drive unit.
the drive unit.
whereby the current drive unit time is transferred to the AOP.
to the AOP.
Control via the operator panel
4.6 Menu commissioning / service
53