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11
System bus "CAN on board"
11.7
Communication phases/network management
714
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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11.7.3
Parameterising the inverter as CAN master
If the initialisation of the system bus and the associated status change from "Pre-Operational" to
"Operational" is not effected by a superimposed host system, the inverter can instead be defined to
be a "quasi" master to execute this task.
The inverter is configured as CAN master in
.
• Being the CAN master, the inverter sets all nodes connected to the bus (broadcast telegram) to
the "Operational" communication status with the "Start remote node" NMT telegram. Only in
this communication status, data can be exchanged via process data objects.
• A delay time can be set in
which must expire after mains switching before the
inverter transmits the "Start remote node" NMT telegram.
Tip!
Master functionality is only required during the initialisation phase of the drive system.
Parameters
Info
Lenze setting
Value Unit
CAN slave/master
slave
CAN delay boot-up - Operational
3000 ms
Note!
The changes of the master/slave operation in
will not be activated until
• another mains switching of the inverter
or
• the "Reset node" or "Reset communication" NMT telegram has been transmitted to
the inverter.
The "CAN reset node" device command (
) is provided as an alternative to the
"Reset node" NMT telegram for the reinitialisation of the CAN-specific device
parameters.