0 .. 100 %
3
4
1
2
09.05.2007
v_hochlaufzeit_ruecklaufzeit.vsd
1
external Signal
2
Setting
3
Rampup time
4
Rampdown time
9.11.3
Setting Startvoltage
Startvoltage
Startvoltage
The power section switch-on point can be adjusted to prevent humming noises in
stationary fans.
With a control variable of approx. 5 %, the modulation is switched from
“
0
”
to 15%. The
new control range is thus 15 - 100 % (Modulation
Info menu).
Setting range: 0 - 50 %
Factory setting: 15 %
9.11.4
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
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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.
Operating Instructions
REPT6 / REPT10
Programming
L-BAL-E081-GB 1237 Index 002
Part.-No. 00163316-GB
59/67
