Eaton M-Max series - Page 29

M-Max Series adjustable frequency drive
MN04020002E
For more information visit: www.eaton.com 19
February 2010
Table 5: List of Fault Messages (F) and Warning Messages (AL) (continued)
Display Designation Possible Cause Instructions
34 Internal
communication
error
Environment interferences or
faulty hardware
If the fault occurs again, please
contact your Eaton representative
or call 877-ETN-CARE (386-2273).
35 Application
error
The application is not working. Please contact your Eaton
representative or
call 877-ETN-CARE (386-2273).
50 4 mA fault
(Analog input)
Selected signal range: 4 – 20 mA
 parameter P2.1
• Current less than 4 mA or voltage
below 2V
• Signal line interrupted
• The signal source is faulty
Check the analog input’s current
source and circuit.
51 External fault Error message on digital input.
The digital input was programmed as
an input for external error messages.
The input is active.
• Check the programming and
check the device indicated by
the error message
• Check the cabling for the
respective device as well
53 Field bus error The communication link between the
master device and the drive’s field bus
has been interrupted.
Check the installation.
If the installation is OK, please
contact your Eaton representative
or call 877-ETN-CARE (386-2273).
54 Slot fault Connection not good Check connection between API
board and fieldbus board