Lenze POWERLINK E84DGDV Series, Communications Manual, Page: 37 / 70

Lenze · Decentralised frequency inverter 8400 motec (POWERLINK Option) · EDS84DMOTPL EN 1.0 - 11/2018
37
Monitoring
Interruption of POWERLINK communication
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8 Monitoring
8.1 Interruption of POWERLINK communication
An interruption of POWERLINK communication in the OPERATIONAL state, e.g. by cable break or
failure of the managing node, is detected by the controlled node. The response to this interruption
of communication depends on the following settings:
1. The watchdog monitoring time defined in the managing node is transferred to the controlled
node when the POWERLINK communication is initialised.
If the controlled node being in the OPERATIONAL state does not receive valid process data, the
process data are handled according to the setting in C13885 . (The last data sent by the
managing node can either be used or set to zero.)
If communication fails, the controlled node state changes to PRE-OPERATIONAL (see
C13861 )
and the red LED "ERR" is activated (see LED status displays
(

38)
).
By default, there is no response in the controlled node.
2. In order to trigger a response in the controlled node, additionally set a response of the controlled
node ( C13880/1 ).
8.2 Interruption of internal communication
• The response in the case of a communication error between the Communication Unit and the
Drive Unit can be set via code C01501 .
• The Communication Unit reports interrupted communication via an emergency telegram to the
master and changes to the "Safe-Operational" state.
• The error message " EPL: Lost connection to 8400 target [0x01bc3100] "
(

42)
is output.