Siemens LMS14 User Manual

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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.18.17 Speed-controlled pump
Line no. Operating line
5101 Pump speed min
Line no. Operating line
5102 Pump speed max
The speed of the charging pump motor is limited by a minimum and maximum
permissible speed.
To ensure reliable startup, the pump is started running at the parameterized starting
speed for 10 seconds.
Line no. Operating line
5103 Speed Xp
The proportional band Xp defines the controller’s gain. A smaller proportional Xp-
band leads to higher speeds of the charging pump while maintaining the same
proportional offset.
Line no. Operating line
5104 Speed Tn
The integral action time Tn determines the controller’s rate of response when
correcting proportional offsets. Shorter integral action time's lead to faster
correcting actions.
Line no. Operating line
5105 Speed Tv
The derivative action time Tv defines the time a spontaneous change of the control
deviation continues to be felt. Shorter derivative action times only have a short-time
impact on the manipulated variable.
Line no. Operating line
5106 Pump speed min OEM
Here, you can set the minimum speed (OEM) of the DHW pump.
Line no. Operating line
5107 Pump speed max OEM
Here, you can set the maximum speed (OEM) of the DHW pump.
Line no. Operating line
5108 Starting speed charg pump
Here, you can set the speed of the charging pump for the start kick.
Line no. Operating line
5109 St speed interm circ pump
Here, you can set the speed of the intermediate circuit pump for the start kick.
Pump speed min
Pump speed max
Speed control of
charging pump
Speed Xp
Speed Tn
Speed Tv
Pump speed min OEM
Pump speed max OEM
Starting speed charg
pump
St speed interm circ pump

Siemens LMS14 Specifications

General

Brand	Siemens
Model	LMS14
Category	Control Unit
Language	English