9.8.9
Setting Derating Alarm and Temperaturemonitoring
The device has integrated temperature monitoring to protect the device from damage caused by
excessively high interior temperatures.
In case of a temperature increase above the predetermined threshold value the level-control is linearly
reduced until the stated threshold temperatures are reached. To prevent a shut down of the entire
system (in this operating mode, allowable for the controller), no alarm indication occurs via the relay
contacts until the preset threshold value (due to an excessively high interior temperature) is reached
during reduced operation!
Derating Alarm
Derating Alarm
The factory preset for the
“
Derating Alarm
”
is 90 %.
I.e. the device level-control due to excessive interior temperatures only amounts to 90
% of the maximum possible. Therefore a message is issued via the programmed
operational or indicator relay.
Setting range: 1...95 %
9.8.10
Suppression of speeds
Suppression of up to three speed ranges.
Under certain circumstances, it is possible to prevent disturbing noises that can arise at certain
speeds due to resonances.
Example for suppression of 2 ranges (Idealized principle diagram)
A
D
P
50 %
50 %
R
0 %
I
S
100 %
I
35 % max
15 % min
09.05.2007
v_ausblendung_prz.vsd
100 %
1
2
A
Modulation
S
Setpoint
R
Pband
D
Speed controller: setting signal
P
P-controller: control deviation
Setting depending on device type in: %, Hz,
rpm
Suppression1
→
Factory setting no suppression active =
“
OFF
”
→
Suppression1
Range1 min.
→
Setting for
“
Range1 min.
”
Setting range:
“
Shutdown Freq.
”
-
“
Range 1 max.
”
→
Range1 min.
Range1 max.
→
Setting for
“
Range1 max.
”
Setting range:
“
Range 1 max.
”
-
“
Max. Frequency
”
→
Range1 max.
Suppression2
→
Identical procedures for Suppression2 and Sup-
pression3, as far as desired
→
etc.
Operating Instructions
Fcontrol
–
model series FKDM..-C
Programming
L-BAL-E057-GB 1304 Index 009
Part.-No. 00163327-GB
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