Fault tracing
vacon • 203
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
10
10.2
Other fault conditions
The following fault tracing diagram will help you to locate and fix some of the most usual problems.
If the problem persists, contact your local distributor.
Figure 54. Fault tracing diagram
11612A_uk
Drive does not
start from the
bus
Check
communication
status
Is device in
READY state?
Is fieldbus
selected as
control place in
drive?
Does Master
give RUN
command?
Use
datalogger or
keypad to
monitor
variable
Counter does
not run
Check the
option board
LEDs
Check
parameter
(M1, 15 or
P3.2.1)
Counter for bad
frames increas-
es
Check drives
external
interlockings
(I/O)
Counter OK
No
communication
Check fieldbus
parameters
Check selected
protocol
Check other
fieldbus
parameters
in menu
Check
Master’s
parameters
Check
communica-
tion settings
Poor
communication
Check cabling
Check
connections
Check distance
between cables
Check cable
types and
lengths
Check
stripping of
cables and
conductors
Check
routers or
other com-
munication
modules if
applicable
Check cabling
Check cable
for outs
Check correct
placement of
conductors
inteminals
Other bus
devices
Other bus
devices
Summary of Contents for optea
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