39
3 System Operation
F1
Fault 121...125
The monitoring processor checks whether the present correction values lies within the range
set.
Check correction range
Otherwise A7
F2
Fault 301, 302
Correction input is configured for 4 ... 20 mA, but the instantaneous value is < 4 mA.
Wire is possibly broken or connection poles are transposed.
Check wiring
Check parameter 431, 432
F3 Selector switch on LR1 on "Measure”
at output 0... 20 mA but no 10 mA,
at output 4... 20 mA but no 12 mA
Centre position potentiometer P4 on power unit LPE 1/S possibly set incorrectly
(see LR 1 operating instructions)
Turn potentiometer to 10 or 12 mA (on LPE 1/S)
F4 A value other than200 or +/-100 is displayed.
The maximum correction range according to the standard software setting is 200 points.
Other range sizes are available for special cases.
F5 50% is not displayed
Either 10 or 12 mA are not fed to the FMS
Measure current
Check wiring
Otherwise the same as F2 or F3
or
Jumpers are incorrectly inserted on the back of the front panel.
Check current
F6
Fault 381, 382
The values of the correction input signals are compared between main and monitoring proces-
sor.
Change processor card
F8 Message "Correction effect switched off, since over 97% for longer than 1 hour”.
TIP:
The correction signal is monitored in order to be able to detect an error function of the correc-
tion signal source (in O
2
regulation). If a correction signal >97% is present on the input for 1
hour a defect is assumed and the correction influence is disregarded.
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