Lenze Drive PLC - Page 45

System bus (CAN) with Ser vo PLC & Drive PLC
Configuration (AIF interface)
4-7
l PLC-Systembus EN 1.1
4.8.2 Bus off
If the PLC has decoupled itself from the system bus because too many of the received telegrams
were faulty, the signal “BusOffState” (CE14) is set.
The reaction to this can be configured via code C2382/4:
Code LCD
Possible settings
Info
Lenze Choice
C2382
4
XCAN Conf. CE
0
0Off
1 Controller inhibit
2Quickstop
Configuration monitoring
“BusOffState”
• Controller inhibit or quick stop
are only possible with 9300
Servo PLC!
Tip!
Possible reasons for faulty telegrams may be:
• A missing bus termination
• Insufficient screening
• Potential differences in the grounding of the control electronics
• An excessive bus load. See chapter 3.11.3, “Bus load through the PLC”. (^ 3-10)
4.8.3 Reaction to system bus error messages
Overview of the system bus error sources detected by the PLC and the possible settings for the
individual reactions:
Error message Possible settings / Reaction
Display Error
no.
Meaning Ctrl. inhibit Fault/QSP Off Code
XCAN Conf. CE
1)
Communication error XCAN1_IN
(Time monitoring can be set via C2357/1)
ü ü · C2382/1
XCAN Conf. CE
1)
Communication error XCAN2_IN
(Time monitoring can be set via C2357/2)
ü ü · C2382/2
XCAN Conf. CE
1)
Communication error XCAN3_IN
(Time monitoring can be set via C2357/3)
ü ü · C2382/3
XCAN Conf. CE
1)
BUS OFF state
(too many faulty telegrams were received)
ü ü · C2382/4
1)
not available; status can be obtained from C2121. ^ 4-8 · Default setting ü possible - not possible
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