Lenze ECS series User Manual

System bus (CAN / CAN−AUX) configuration
Determining the boot−up master for the drive system
8
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162
EDBCSXA064 EN 3.2
8.3 Determining the boot−up master for the drive system
If the bus initialisation and the related state change from "Pre−Operational" to
"Operational" is not carried out by a higher−level host system (PLC), another node can be
determined as boot−up master to carry out this task.
The master functionality only is required for the initialisation phase of the drive system. A
boot−up time for the master in the initialisation phase can be set via C0356/C2456
( 163).
By means of the NMT telegram start_remote_node (broadcast telegram) all nodes are
shifted to the NMT−state "Operational" by the master. A data exchange via the process
data objects can only be effected in this state.
Use C0352/C2452 for configuration.
Code Possible settings IMPORTANT
No. Designation Lenze/
{Appl.}
Selection
C0352 CAN mst 0
Boot−up master/slave
configuration for CAN bus
interface X4
 162
0 Slave
1 Master boot−up Device is active as CAN boot−up
master.
2 Master node guarding
3 Slave heartbeat producer
4 Slave node guarding
C2452 CANa mst 0
Configuration of master/slave
for CAN bus interface X14
(CAN−AUX)
 162
0 Slave
1 Master
Save changes with C0003 = 1.
The settings are only accepted after carrying out one of the following actions:
ƒ Renewed switch−on of the 24 V low−voltage supply
ƒ Reset node via the bus system (by the network management (NMT))
ƒ Variable CAN_bResetNode_b or CANaux_bResetNode_b = TRUE
ƒ Reset node with C0358/2458 = 1
 Note!
If reset node is executed via GDC, communication will be interrupted. You
therefore have to log in again manually or find the devices connected to the
bus once again (fieldbus scan).

Lenze ECS series Specifications

General

Brand	Lenze
Model	ECS series
Category	Control Unit
Language	English