IFM PI28 Series, Operating Instructions Manual

Page: 29 / 33

29
UK
Display W
arning
Error Status LED Type of fault Corrective measures
*OFF X Supply voltage too low. ► Check / correct the
supply voltage.
► In 2-wire operation:
Check / correct the
connected load.
SC1 OUT1
flashes
Excessive current switching
output 1.
► Check switching output
1 for short-circuit or
excessive current;
remove the fault.
SC2 OUT2
flashes
Excessive current switching
output 2.
► Check switching output
2 for short-circuit or
excessive current;
remove the fault.
SC X OUT1
and
OUT2 are
flashing
Excessive current switching
output 1 and switching
output 2.
► Check switching
outputs 1 and 2 for
short-circuit or excessive
current; remove the
fault.
PARA X Parameter setting outside the
permitted range.
► Repeat parameter
setting.
OL X Above the measuring range:
Measured value higher than
+5 % of the final value of the
measuring range.
► Check / reduce system
pressure.
UL X Below the measuring range:
Measured value lower than
+5 % of the final value of the
measuring range.
► Check / increase the
system pressure.
E100 X Internal sensor error detected. ► Replace the unit.
W531 X Analogue output at the upper
limit (20.5 mA).
► Increase AEP value if
possible (for [OU2] =
[InEG] ASP value) or
reduce system pressure.
* In case of undervoltage (fault no. W403) nothing is displayed.
** 2 = Out of Spec; 4 = failure