10
vacon • 202 Fault tracing
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
10. FAULT TRACING
When the option board or the AC drive control diagnostics detect an unusual operating condition,
the drive opens a notification, for example, on the keypad. The keypad shows the ordinal number of
the fault, the fault code and a short fault description.
You can reset the fault with the Reset button on the control keypad, via the I/O terminal or via the
used fieldbus protocol. The faults are stored in the Fault history menu, which can be browsed. The
fault table presents only the fault conditions related to the fieldbus in use.
NOTE! When you contact a distributor or a factory because of a fault condition, always write down
all the texts and codes on the keypad display. Then send the problem description together with the
Drive Info File to the local distributor. See local contacts: www.danfoss.com. If possible, also send a
fieldbus communication log from the situation if applicable.
Table 202. Fieldbus communication log tools
10.1 Typical fault conditions
Table 203. Typical fault conditions
Recommended tool For Boards
Wireshark For Ethernet based fieldbuses OPTEA, OPTE9
ProfiTrace For PROFIBUS OPTE3-E5
CANalyzer For CAN based boards OPTE6, OPTE7
Fault condition Possible cause Remedy
Cabling
Supply or motor cables are
located too close to the
fieldbus cable
Wrong type of fieldbus cable
Too long cabling
Grounding Inadequate grounding Ensure grounding in all the points on the net
Connections
Faulty connections: Exces-
sive stripping of cables
Faulty connections: Conduc-
tors in wrong terminals
Faulty connections: Too
loose connections of con-
ductors
Parameter
Faulty address
Overlapping slave
addresses
Wrong control place
selected
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