6-4
User Manual CM-CAN1
6 Fault rectification
6.2 Error messages Function: Error messages
Data direction: Drive unit > Master
Type: Selective
Messages are only transmitted in the SYSTEM START device state.
• Each error message is indicated by one-time transmission of error
identifier 441.
• When the error state has been eliminated an error identifier 441 with
data content 0 is transmitted.
Error connected with CAN bus
Priority based
on CAL
Display Base ID
Data byte
0/1
Data byte
2
Data byte
3
2 Error active 441 Error no.
Error
location
Reserved
Always 0
Error reset 441 0 0 0
Error number: The number corresponds to the error number of the drive unit (for
definition see Operation Manual >> Error message)
Error location: This number permits more precise definition of the cause of the error on
the devices.
Table 5.9 Error messages
Bus
DM/
KP
Error
location
no.
Error cause Possible remedy
Respons
e no.
16 E-OP2 170 Error in module at option slot 2 1. Check module and identifier; 2. (1) STOP
171
Error on option 2: BUS-OFF state detected. Check contacting of module. If the error still
occurs after switching off and back on again,
the device or the module is faulty.
The error may also be caused by another sta-
tion on the bus.
172
Error on option 2: Transmit protocol could
not be sent.
Check contacting of module. If the error still
occurs after switching off and back on again,
the device or the module is faulty.
173
Error on option 2: Module not responding. Check contacting of module. If the error still
occurs after switching off and back on again,
the device or the module is faulty.
174
Error on option 2: Module has signaled
error.
Check contacting of module. If the error still
occurs after switching off and back on again,
the device or the module is faulty.
Table 5.10 CAN bus error
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