Traveling Speed/Maximum Curve Slope; Entering The Running Position; Operating Position - Siemens LMV27.100x2 Basic Documentation

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10.3.2 Traveling speed/maximum curve slope

The time required to modulate from low-fire to high-fire can be set via parameter 544.
The following maximum curve slopes (positioning angle) can be achieved depending on
the set ramp-up time (parameter 544):
Type of Positioning
actuator speed
Actuators (3 Nm) 5 s / 90°
Actuator SQM33.6 10 s / 90°
Actuator SQM33.7 17 s / 90°
¹) Depending on the setting, the restriction of the maximum positioning angle does not permit the
maximum position of 90° to be reached
²) Maximum difference between 2 curve points
No. Parameter
544 Ramp modulating
The setting also acts outside the running position (refer to chapter Running speed).
Error Diagnostic
code code
84 Bit 1
Valency 2..3
Bit 2
Valency 4..7
The setting also acts outside the operating position (refer to chapter Traveling speed).
10.3.3

Entering the running position

The burner is ignited when ignition position P0 is reached. When entering operating
phase 60, the actuators follow the defined curves until the low-fire position is reached
(20% or parameter 545).
No. Parameter
Lower output limit
545
undefined = 20 %

10.3.4 Operating position

As demanded by the load controller, the actuators are driven along the defined 20% and
100% curves. Point of ignition P0 can only be reached via the curve settings.
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17.12.2018