Vacon NX - Page 90

Fault codes and software
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91
4
F8
Sys-
tem
fault
S4 1=Power
2=Power
1
3=Power
2
4=Con-
trol
2=Board Failure appears
in the big units,
FR12, FR14.
2=Power
1=starcoupler
3=Power
2=starcoupler
Failure has been dis-
abled, but if it appears
anyway:
1. Check, if the failure is
recursive.
2. Check the ground-
ings.
3. Change the ASIC
boards (VB00451)
4. Change the control
board
S5 1=Power
2=Power
1
3=Power
2
2=Board Communication
problem. Do not
appear in the
unit which
includes star
coupler. There is
MOX contactors
1, 2,3,4 inside
the ASIC board
(VB00451)
which is/are not
swap in time.
1. Check the fibres: con-
nections, connectors on
the ASIC board
(VB00451).
2. Check the connection
between control board
and adapter board
(VB00228).
3. Check the connections
of the optical fibres.
S6 1=Power 1=Unit Feedback of the
charging relay
does not work
correctly. Fail-
ure appears in
the NXS units,
which includes
control board
VB00251.
Failure appears if the
system has external
relays which have longer
delay time than the used
program has. Check
external connections.
Failure appears in the
unit sizes FR9-FR14.
TABLE 16. System software fault codes
Code Sub
code
Module Sub
module
Explanation Fault mode