11.8
OS Synchronization
The operating System (OS) of the frequency inverter can be synchronized to the
PLC or other devices. The synchronization of the OS enhances the performance of
the complete plant. Synchronization is used to eliminate phase deviations of the
CPUs between master and slave devices, so that calculations are done at the same
time. The synchronization time must be natural number as multiplier from 1 ms.
OS_SyncSource
1452
Operation mode
Function
0 - Auto
The synchronization source is selected automatically by the
inverter.
1 - CANopen
®
The OS is synchronized via CANopen. Factory setting.
2 - Systembus
The OS is synchronized via Systembus.
3 - Ind. Ethernet
Module
The OS is synchronized via Ethernet Module
4 - Synchronised
Ind. Ethernet
Module
The OS is synchronized via synchronized Ethernet Module
e.g. EtherCAT
®
99 - Off
The OS is not synchronized with other devices.
Operation mode Auto: The selection is done via this decision table:
EtherCAT
®
active
Systembus
active
Synchronization
Yes
Yes
Synchronisation via EtherCAT
®
Yes
No
No
Yes
Synchronization via Systembus
No
No
No Synchronization activated.
1453
OS SyncSource Act
shows the active Synchronization source
The parameter 1451
OS Synctime
can be used to shift the point of the synchroniza-
tion inside of 1 ms. When you experience noises from a motor, shifting the
CANopen
OS Synctime can result in a better behavior.
Parameter
Setting
No.
Description
Min.
Max.
Fact. sett.
1451 OS Synctime
700 us
900 us
800 us
07/13
CM-EtherCAT
31
