Lamtec FMS Series, Quick Reference For End User

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3 System Operation
TIP:
The feedback can be simulated by means of a current transmitter. This makes it easier to lo-
cate the fault on the feedback circuit.
E6
Fault 361
Main and monitoring processor do not show the same feedback value, although the same sig-
nal is fed to each of them
Check limit switch position
Check connections for transposition and reversal, see also E5, E4, E1.
E7 The feedback values displayed do not correspond to the values indicated.
If the feedback element in its normal position is not at the bottom stop, a higher feedback value
may also be displayed (e.g. in feedback of the fan speed minimum speed).
Make sure that the control element is in the normal position.
E8 The feedback potentiometers do not attain the upper value indicated
The potentiometer connections are possibly transposed (centre with outer).
Check wiring.
E9
Fault 321...325
Broken wire in feedback lead or feedback is not properly connected.
Current feedback poles are possibly reversed or below a minimum value of 4 mA.
Check wiring
Check input current
E10 “---” on the display instead of a figure
Selector switch (2) is on "Setting”
Set selector switch (2) to "Automatic”
E11
Störung 211...215,
221...225
Control element is outside the 2
nd
monitoring band.
TIP:
The 2
nd
monitoring band serves to switch off immediately in the event of an uncontrolled ac-
tion of the control element..