Deleting Curves - Siemens LMV37.4 Series Basic Documentation

23 Ho mod Modulating
separate electronic
circulation
control
24 Ho 2 stage 2-stage
separate
circulation
control
25 Ho mod Modulating
without electronic
circulation
control
26 Ho 2 stage 2-stage
without
circulation
control
27 Ho 3 stage 3-stage
without
circulation
control
28 G mod mech Modulating
only air mechanical
actuator
29 Gp2 mod Modulating
mech only air mechanical
actuator
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Building Technologies
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(Also refer to chapter Fuel trains)
The VSD can be used with any of the operating modes (refer to chapter VSD).
No. Parameter
Activation of VSD / PWM fan
0 = deactivated
542
1 = active
2 = activated (no repetition)
Note
For configuration of the analog output when the VSD is activated, refer to chapter
Load output X74 pin 3!

8.1 Deleting curves

To delete curves, the operating mode must be set to undefined «--». In that case, only
the fuel curves are deleted, the direction of rotation or the reference position of the
actuators is not changed.
Basic documentation LMV37.4...
8 Selection of operating mode
Description
Heavy oil direct ignition, with circulation control, electronic
modulating ratio control.
Optional with VSD with speed feedback signal
Heavy oil direct ignition, with circulation control, electronic 2-stage
ratio control.
Optional with VSD with speed feedback signal
Heavy oil direct ignition, without circulation control, electronic
modulating ratio control.
Optional with VSD with speed feedback signal
Heavy oil direct ignition, without circulation control, electronic 2-
stage ratio control.
Optional with VSD with speed feedback signal
Heavy oil direct ignition, without circulation control, electronic 3-
stage ratio control.
Optional with VSD with speed feedback signal
Gas direct ignition, only air actuator, mechanical modulating ratio
control.
Optional with VSD with speed feedback signal
Gas pilot ignition 2, only air actuator, mechanical modulating ratio
control.
Optional with VSD with speed feedback signal
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CC1P7546en
17.12.2018