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Building Technologies Division
Basic documentation LMV36...
CC1P7544en
Infrastructure & Citiies Sector
11 Electronic fuel-air ratio control
25.09.2013
11.3.2 Traveling speed/maximum curve slope
The time required to modulate from low-fire to high-fire can be set via parameter 544.
In connection with the actuator’s ramp in the basic unit, the following positioning angles
or speed changes between maximum 2 curvepoints can be covered:
Modulation
32 s
Modulation
48 s
Modulation
64 s
Modulation
80 s
Type of
ac
tuator
Po
si
ti
o
n
in
g
sp
e
e
d
Po
si
tioning a
ngle
²)
Po
si
tioning a
ngle
²)
Po
si
tioning a
ngle
²)
Po
si
tioning a
ngle
²)
Actuators (3 Nm)
5 s / 90°
31°
46°
62°
77°
Actuator SQM33.6
10 s / 90°
15°
22°
30°
37°
Actuator SQM33.7
17 s / 90°
9° 1)
13°
18°
22°
VSD
5 s / 100%
40 %
60 %
80 %
100 %
10 s / 100%
20 %
30 %
40 %
50 %
20 s / 100%
10 %
15 %
20 %
25 %
30 s / 100%
6,6 % ¹)
10 %
13 %
16 %
40 s / 100%
5 % ¹)
7.5 % ¹)
10 %
12 %
¹) Depending on the setting, restricting the maximum positioning angle or the maximum
speed differential does not allow the maximum position of 90° or 100% to be reached.
²) Maximum difference between 2 curve points
No. Parameter
522 Ramp
up
523 Ramp
down
544 Ramp
modulating
The setting also acts outside the operating position (refer to chapter
Traveling speed
).