Vacon OPTAF - Page 49

THERMISTOR FUNCTION (ATEX) vacon • 47
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
8System Fault37…40 Single hardware problem
detected in STO inputs.
- Change the OPTAF board
or the VACON
®
NXP con-
trol board
.
8System Fault41…43 Single hardware problem
detected in the thermistor
input.
- Change the OPTAF board.
8System Fault44…46 Single hardware problem
detected in STO inputs or in
the thermistor input.
- Change the OPTAF board
or the VACON
®
NXP con-
trol board.
8System Fault47 OPTAF board mounted in
old VACON
®
NXP control
board.
- Change the VACON
®
NXP
control board to VB00561,
rev. H or newer.
8System Fault48 Parameter Expander
boards/SlotB/Therm
Trip(HW) is set to OFF even
though the jumper wire X12
is not cut.
- Correct the parameter
according to the jumper
settings.
8System Fault49 OPTAF is only compatible
with NXP.
- Remove the OPTAF board.
8System Fault50 Hardware problem.
The fault only appears with
SIL3 compatible control
boards.
- Change the NXP control
board.
8System Fault51 Hardware problem. The
fault only appears with SIL3
compatible configurations.
- Contact your distrib-
utor.
- The power unit may
need to be replaced.
8System Fault52 Hardware problem. The
fault only appears with SIL3
compatible control boards.
- Contact your distrib-
utor.
- Change the NXP con-
trol board.
Table 14. Faults related to the STO & thermistor function
Fault
code
Fault Subcode Possible cause Correcting measures