24 • vacon
fault tracking
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
8
8.
FAULT TRACKING
The table below presents the faults related to the BACnet option board. For more information, see
also Vacon NX User's Manual, Chapter 9.
The BACnet option board status LEDs have been described in more detail in Chapter 5.
Fault
code
Fault
Possible cause
Correcting measures
37
Device change
Option board changed.
Reset
38
Device added
Option board added.
Reset
39
Device removed Option board removed.
Reset
40
Device
unknown
Unknown option board.
53
Fieldbus fault
-The board has lost all contact with other
devices on the network.
- Duplicate MAC ID (Bad Frames in
“Comm. status” is incremented every
time a frame is received from a device
with the same MAC id on the same
segment.)
Check the installation.
If installation is correct contact the
nearest Vacon distributor.
Check that MAC ID is unique.
54
Slot fault
Defective option board or slot.
Check the board and slot.
Contact the nearest Vacon distributor.
Table 8-1. RS-485 option board faults
You can define with parameters how the frequency converter shall react to certain faults:
Code
Parameter
Min
Max
Unit
Step
Default
ID
Note
P2.7.22 Response to fieldbus
fault
0
3
1
0
733
0=No response
1=Warning
2=Fault,stop acc. to 2.4.7
3=Fault,stop by coasting
P2.7.23
Response to slot
fault
0
3
1
0
734
0=No response
1=Warning
2=Fault,stop acc. to 2.4.7
3=Fault,stop by coasting
Table 8-2. Frequency converter responses to faults
These BACnet Specific fault codes can be read from panel V7.x.2.3 (x is the used, D=4, E=5).
Fault
code
Fault
Possible cause
Correcting measures
0
None
1
Sole Master
Only device on the network
Add devices
2
Duplicate MAC ID
Some other device has the same MAC ID
Check MAC Addresses
3
Baudrate fault
Option card notices traffic, but can’t lock
to the selected baudrate.
Check Baudrate
Table 8-3. BACnet specific faults