Vacon OPTAF, User Manual

Page: 38 / 50

vacon • 36 STO AND SS1 SAFETY FUNCTIONS
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
8 System Fault 37...40 Single hardware problem
detected in STO inputs. - Change the OPTAF
board
or the
VACON
®
NXP con-
trol board
.
8 System Fault 41...43 Single hardware problem
detected in the thermis-
tor input. - Change the OPTAF
board.
8 System Fault 44...46 Single hardware problem
detected in STO inputs or
in the thermistor input. - Change the OPTAF
board
or the
VACON
®
NXP con-
trol board
.
8 System Fault 47 OPTAF board mounted in
old VACON
®
NXP control
board.
- Change the VACON
®
NXP control board to
VB00761.
8 System Fault 48 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.
8 System Fault 49 OPTAF is only compatible
with NXP. - Remove the OPTAF
board.
8 System Fault 50 Hardware problem.
The fault only appears
with SIL3 compatible con-
trol boards. - Change the NXP
control board.
8 System Fault 51 Hardware problem. The
fault only appears with
SIL3 compatible configu-
rations. - Contact your distrib-
utor.
- The power unit may
need to be replaced.
8 System Fault 52 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