Siemens LMV37.4 Series User Manual

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Building Technologies Basic documentation LMV37.4... CC1P7546en
8 Selection of operating mode 17.12.2018
Operating mode parameter 201 Fuel train Fuel-air ratio control Fuel actuator Air actuator Feedback signal VSD
Description
23 Ho mod
separate
circulation
control
Modulating
electronic
● ● ● Heavy oil direct ignition, with circulation control, electronic
modulating ratio control.
Optional with VSD with speed feedback signal
24 Ho 2 stage
separate
circulation
control
2-stage ● ● Heavy oil direct ignition, with circulation control, electronic 2-stage
ratio control.
Optional with VSD with speed feedback signal
25 Ho mod
without
circulation
control
Modulating
electronic
● ● ● Heavy oil direct ignition, without circulation control, electronic
modulating ratio control.
Optional with VSD with speed feedback signal
26 Ho 2 stage
without
circulation
control
2-stage ● ● Heavy oil direct ignition, without circulation control, electronic 2-
stage ratio control.
Optional with VSD with speed feedback signal
27 Ho 3 stage
without
circulation
control
3-stage ● ● Heavy oil direct ignition, without circulation control, electronic 3-
stage ratio control.
Optional with VSD with speed feedback signal
28 G mod mech
only air
actuator
Modulating
mechanical
● ● Gas direct ignition, only air actuator, mechanical modulating ratio
control.
Optional with VSD with speed feedback signal
29 Gp2 mod
mech only air
actuator
Modulating
mechanical
● ● Gas pilot ignition 2, only air actuator, mechanical modulating ratio
control.
Optional with VSD with speed feedback signal
(Also refer to chapter Fuel trains)
The VSD can be used with any of the operating modes (refer to chapter VSD).
No. Parameter
542
Activation of VSD / PWM fan
0 = deactivated
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.

Siemens LMV37.4 Series Specifications

General

Brand	Siemens
Model	LMV37.4 Series
Category	Controller
Language	English