General information
2.6 Time synchronization between the control and converter
Communication
28 Function Manual, 12/2018, 6SL3097-5BD00-0BP0
2.6.1 Setting SINAMICS time synchronization
Setting time synchronization
1. Using p3100, changeover the time format from operating hours into the UTC format (see
"Changing the time format").
2. Set the synchronization technique:
– Basic synchronization (p3103 = 2)
– Time synchronization with ping compensation (p3103 = 0)
3. Using p3104, set the ping source:
– If you are working with one of the telegrams 390, 391 or 392, then the source of the
ping (p3104) is internally connected with bit 1 of the CU control word
(DO1:CU_STW.1). In this case, parameter p3104 is blocked.
– If you are using a free telegram (999), interconnect the ping source (p3104) via BICO
in the control word.
– If you are working with CANopen, interconnect a free bit in the CANopen control word
with p3104 via a BICO connection.
Result:
After time synchronization, the current time is obtained from the time transferred by the time
master plus the necessary delay time associated with the transfer (ping-snap time).
The actual UTC time is displayed in the drive system using r3102.
At certain intervals, synchronization (according to the same technique) is repeated
(depending on the setting in the time master).
If a previously defined tolerance window is exceeded, then alarm A01099 is output. Define
the tolerance window for time synchronization using p3109. If alarm A01099 occurs, then
generally the synchronization interval is too long.
In this case, reduce the synchronization interval in your control system.
Changing the time format
The time format is entered via parameter p3100. This parameter cannot be changed online
To change the value, proceed as follows:
1. Connect Startdrive ONLINE with the converter.
2. Carry out an upload using the "Load from device" function.
3. In Startdrive, exit the ONLINE mode.
4. Offline, make the setting p3100 = 1.
5. Reactivate the ONLINE mode.
6. Carry out a parameter download ("Load to device").
7. Save the settings in a non-volatile fashion on the memory card of the drive.
You have now changed over the converter time format to the UTC format.
Application example
You can find an application example for SINAMICS time synchronization in the SIEMENS
"Industry Online Support":
Example: Specific SINAMICS time synchronization
(https://support.industry.siemens.com/cs/de/en/view/88231134)
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