Lenze 8400 TopLine - Manual (Page 854)

14 Axis bus
14.3 IO axis bus
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Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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Application notes
In the event of an error in a network, a slave drive should never trigger the "Fault error response as
this causes the pulse inhibit. This deactivates the coupling to the master and hence the network.
Possible solution:
1. Reconfigure the "Fault" error response to "Warning" in the slave axes.
2. Use the "master/slave" function ("release cord") to report errors and warnings to the master.
The master can then initiate the respective response for the entire network.
In the following interconnection example, the slave drive uses the bCollectedFail group error output
of the SB LS_DriveInterface for "pulling the release cord". Non-relevant inputs/outputs of the
SB LS_DriveInterface are hidden for an easier presentation.
[14-7] Configuration for "master/slave" function ("release cord")
In order that this mechanism works, the following parameter setting is additionally required for the
slave drive:
1. Go to C00148 and set bit 6 to "1" in order that warnings are also provided via the bCollectedFail
group error output of the SB LS_DriveInterface .
2. Go to C02444/1 and set bit 0 to "1" in order that the bSetFail_DigOut input is edge-sensitive
instead of level-sensitive. Otherwise, the error set input is "latched" and the slave drive does not
respond anymore to an error reset by the master.