IFM PN7 Series, Operating Instructions Manual, Page: 28 / 33

28
10.2 Self-diagnostics / fault indications
The unit has many self-diagnostic options�
• It monitors itself automatically during operation�
• Warnings and faults are displayed (even if the display is deactivated), in
addition they are available via IO-Link�
Display
Status LED
OUT1
Status LED
OUT2
Type of fault *
)
Fault / warning Corrective measures
none F Supply voltage too low� ► Check / correct the supply
voltage�
SC
flashes
flashes flashes F Excessive current on
switching outputs OUT1 and
OUT2 **
)
�
► Check switching outputs for
short-circuit or excessive
current; remove the fault�
SC1
flashes
flashes F Excessive current on
switching output OUT1 **
)
�
► Check switching output
OUT1 for short-circuit or
excessive current; remove
the fault�
SC2
flashes
flashes F Excessive current on
switching output OUT2 **
)
�
► Check switching output
OUT2 for short-circuit or
excessive current; remove
the fault�
Loc W Parameter setting locked via
pushbuttons�
► Unlock buttons (→ 9.1
Parameter setting in
general) →"Locking /
unlocking"�
C�Loc W Parameter setting locked
via pushbuttons, parameter
setting is active via IO-Link
communication (→ 9.1) �
► Wait until parameter setting
via IO-Link is finished�
S�Loc W Setting buttons locked
via parameter software�
Parameter change is rejected
(→ 9.1) �
► Unlocking only possible via
IO-Link interface/parameter
setting software�
OL W Process value too high
(measuring range exceeded)�
► Check / reduce system
pressure / select unit with
corresponding measuring
range�