102
FMS Fault Correction
Feedback (E)
Aids
nd
E11 - Continued
If the actual value is outside the 2 monitoring band, there is an immediate
shutdown (3 sec.).
Check control element, actuation and feedback.
A relay may be "sticking”, the system may not have been in the starting
position when starting (all channels closed)
a
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E13
Fault
141
Only on three-point step control output
142
the feedback values vary more rapidly than the maximum specified in the
143
parameter section
144
145
Check potentiometers for short-circuits
otherwise
Change potentiometers
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E14
Text message Channel X does
The range monitoring during pre-ventilation resulted in too low a limit stop
not reach aeration position rapidly
value of the feedback potentiometer. The upper and lower limit value were not
enough and/or fault 600
reached during pre-ventilation.
Check potentiometer, check continuous feedback value
Compare range limits with feedback stop values
If necessary, re-enter range limits
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If limit switches are adjusted after a curve has been programmed in, the range
limits must be re-entered.
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Actuation of the motor possibly defective
Check relay module
Check wiring
The motor is possibly defective (direction of rotation reversed)
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E12
Integral rev. speed sensor
During motor startup, the display increases from ca. 0-7 digits until from
a certain point it suddenly jumps back again to 0-7 digits.
The sensing pulses are too short, or the contact gap between Namur sensor
and measured object is too small, to allow error-free measurement at higher
rev. speeds.
Check the Namur sensor's attachment:
- The measuring point should be made of steel if at all possible
- Contact gap as small as possible
- The measuring point must be at least as large as the sensor element's
are
