97
FMS Fault Correction
Continuous output (C)
Aids
C1
Control element does not react
Measure continuous output in order to make sure that the FMS is
Changes to continuous output
working correctly.
of the FMS
Check output circuit to the control element
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It is recommended that the FMS output signal be simulated with current
transmitter, making it very easy to locate the fault.
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See also C2 and C4
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C2
No current signal measurable on the
Hardware probably defective
continuous output, although a
figure >0 appears on "continuous
First change continuous additional cards
output value" display
if fault persists, change processor card
if fault persists, change backplane
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C4
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Fault
371
The monitor output of the FMS constantly monitors the current flowing
(terminals 47 and 49), (only if set to "Internal Load"). A current must flow at
all times if the monitor output is configured to "Internal Load".
If the output is not used, the terminals must be short-circuited.
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Check wiring
Measure current
(Maximum apparent ohmic resistance 600W)
Short-circuit terminals directly
Reset fault
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If the current can no longer flow entirely via the negative input (terminal 49)
because of an external earth connection, this fault will occur even though the
output current is correct.
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