Process Sync Telegram; Selecting The Synchronization Source - BONFIGLIOLI Active Cube User Manual

7.9.2 Process SYNC telegram

If synchronous PDO's have been created in a frequency inverter, their processing is
synchronized with the SYNC telegram. The Sync event can either by a SYNC telegram
or a RxPDO telegram and is set up via 1180
The SYNC telegram is generated by the system bus master and is a telegram without
data or 1 byte data. The data byte is ignored.
The identifier is 128 according to the Predefined Connection Set.
If a PC or PLC is used as a master, the identifier of the SYNC telegrams can be
adapted
identifier of the SYNC telegram must be set identically in all clients on the system
bus.
Atten-
tion:
The setting of the identifier of the SYNC telegram is done via parameter
Identifier
Parameters
No.
918 SYNC identifier
The setting "0" results in identifier assignment according to the Predefined Connec-
tion Set.
The data of the Rx-PDO's are forwarded to the application after the arrival of the
SYNC telegram. At the same time, the Tx-PDO's with the currently available data
from the application are sent.
This method enables pre-occupancy of set points in the system bus subscribers and a
synchronous / parallel take-over of the data.

7.9.3 Selecting the synchronization source

The operating system (OS) of the frequency inverter can be synchronized with a PLC
or another device. Synchronizing the operating system will improve the operating
behavior of the machine.
Synchronization via CANopen:
If CANopen is used without system bus, synchronization can be turned on or off.
Synchronization is done via CANopen SYNC telegrams.
Synchronization via system bus:
If CANopen is used simultaneously with system bus, synchronization can be done
either on CANopen, system bus or turned off. Synchronization is effected through
system bus SYNC telegrams or system bus RxPDO telegrams.
Note: If the operating system is synchronized via CANopen, the CANopen master
must support the CANopen synchronization mechanisms.
03/12
by parameterization
The identifier range 129..191 may not be used as this range is used for
the emergency telegrams.
918.
Description
SYNC
RxPDO's TxPDO's
EM-ABS-01 for ACU
Operation mode
on the frequency
Settings
Min. Max.
0 2047
SYNC
RxPDO's
synchronization.
inverter. The
SYNC-
Factory setting
0
Zeit
TxPDO's
55