KROHNE MFC 300 EN - Manual (Page 114)

6
OPERATION
114
MFC 300
www.krohne.com 02/2012 - 4000498602 - MA MFC 300 R03 en
Application Error
F SE Data Different Sensor electronics (SE) and converter
electronics (BE) have different parameters.
The electronic insert has probably been
replaced.
Copy the parameters from SE to BE or vice
versa in Fct. C1.6.3. For detailed information
refer to Replacing the sensor or converter
electronics on page 122.
F SE Drive Failure Error in sensor electronics (SE), drive
amplitude no longer controllable.
Replace electronic unit.
F SE Wiring Error Fault in wiring (remote version) Check wiring and rectify.
F Interface PCB Failure RAM or ROM error detected. Replace electronic unit.
F Hardware Settings (also
when changing modules)
The set hardware parameters do not match
the identified hardware. A dialogue appears
in the display.
Answer queries in dialogue mode, follow
directions.
After module change, confirm query for
changed configuration. If device
configuration unchanged: defective, replace
electronic unit.
F Hardware Detection Existing hardware cannot be identified.
Defective or unknown modules.
Replace electronic unit.
F RAM/ROM error IO1 A RAM or ROM error is detected during the
CRC check.
Defective, replace electronic unit or
input/output module (I/O module).
F RAM/ROM error IO2
F Fieldbus Malfunction of the Fieldbus interface. Defective, replace electronic unit or
input/output module (I/O module).
Messages on the display Description Actions
Status: F _ _ _ _ _ Application fault, device OK, but
measured values affected. Application test or operator action
necessary.
F Application Error Application-dependent fault, but device is
OK.
Group message, when errors as described
below or other application errors occur.
F Sensor Exceeding Limit Mass flow is greater than max. flowrate.
Accuracy is not guaranteed!
Reduce flowrate or increase meter size.
F Open Circuit A Load on current output A/B/C too high,
effective current too low.
Current not correct, mA output cable has
open circuit or load too high. Check cable,
reduce load (set < 1000 ohm).
F Open Circuit B
F Open Circuit C
F Over Range A The current or the corresponding measured
value is limited by a filter setting.
Check with Fct. C3.1 hardware or sticker in
terminal compartment, which output is
connected to the terminal.
If current output: extend Fct. C3.x.6 range
and Fct. C3.x.8 limitation.
If frequency output: extend values in
Fct. C3.x.5 and Fct. C3.x.7.
F Over Range B
F Over Range C
F Over Range D
F Over Range A The pulse rate or the corresponding
measured value is limited by a filter setting.
Or the demanded pulse rate is too high.
F Over Range B
F Over Range C
F Over Range D
F Wiring A Wiring error. Check connections at terminals A or B.
F Wiring B
F Stop Mode Device is in stop mode. Check Fct A8.
Messages on the display Description Actions
Status: F _ _ _ _ _ Operational fault in device, mA output ≤
3.6 mA or set fault current (depending
on the seriousness of the fault), status
output open, pulse / frequency output:
no pulses Repair necessary.
.book Page 114 Monday, February 6, 2012 11:01 AM