Vacon OPTAF - Page 38

vacon • 36 STO AND SS1 SAFETY FUNCTIONS
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 thermis-
tor 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
VB00761.
8System Fault48 Parameter Expander
boards/SlotB/Therm
Trip(HW) is set to OFF
even though the jumper
wire X12 is not cut.
- Correct the parame-
ter 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 con-
trol boards.
- Change the NXP
control board.
8System Fault51 Hardware problem. The
fault only appears with
SIL3 compatible configu-
rations.
- 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
control board.
Table 11. Single hardware problems detected in the STO safety function
Fault code Fault Subcode Possible cause Correcting measures