Lenze E94AxPExxxx - Manual (Page 405)

Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
405
10 "CAN on board" system bus
10.11 System block "LS_SyncInput"
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
 Synchronisation of PDOs via sync telegram ( 350)
10.11.1 Behaviour of the status signal bSyncInsideWindow
C01123 serves to set a time slot for monitoring the synchronisation signal. If the synchronisation
signal received via the bus is in this time slot (around the expected time of the synchronisation
signal), the bSyncInsideWindow output is set to TRUE.
The faulty inclusion of the phase position set in
C01122 into the calculation of the time slot has
been removed. The time slot for monitoring the synchronisation signal only corresponds to the sync
tolerance set in C01123 .
Example:
• Sync phase position ( C01122 ) = 400 μs
• Sync tolerance ( C01123 ) = 20 μs
 The time slot for monitoring has a size of 20 μs!
Feedbacks and their remedies
If the bSyncInsideWindow status signal is used in existing systems, this remedy reduces the
monitoring window by the amount of the phase position if it is non-zero. This may cause an
unwanted activation of the monitoring of the synchronisation signal programmed by the user.
Remedy: When the syn tolerance is increased (
C01123 ) by the amount of the phase position set in
C01122 , the compatible state is restored.
SYNC_bProcessDataInvalid
BOOL
Status signal "Synchronous PDO invalid"
TRUE Synchronous PDO is invalid.
Identifier
Data type
Value/meaning