1 behaviour of the status signal bsyncinsidewindow, Ing subchapter, Behaviour – Lenze 9400 User Manual
Page 365: Of the status signal bsyncinsidewindow ( 365), 9"can on board" system bus
Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06
365
9
"CAN on board" system bus
9.11
System block "LS_SyncInput"
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Synchronisation of PDOs via sync telegram
9.11.1
Behaviour of the status signal bSyncInsideWindow
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.
Up to and including software version V6.0 the following applies:
Due to an error in the implementation, the phase position set in
is included in the
calculation of the time slot. The time slot effective for monitoring around the expected time of the
synchronisation signal is thus increased by the amount of the set phase position.
Example:
• Sync phase position (
) = 400 μs
• Sync tolerance (
) = 20 μs
The time slot for monitoring has a size of 420 μs!
The following applies from software version V7.0 onwards:
The faulty inclusion of the phase position set in
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
.
Example:
• Sync phase position (
) = 400 μs
• Sync tolerance (
) = 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 (
) by the amount of the phase position set in
, the compatible state is restored.
SYNC_bProcessDataInvalid
BOOL
Status signal "Synchronous PDO invalid"
TRUE Synchronous PDO is invalid.
Identifier
Data type
Value/meaning