Siemens LMV5 Series - Page 164

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Siemens Building Technologies Basic Documentation LMV51... CC1P7550en
HVAC Products 8 Commissioning instructions for the LMV5... system 01.10.2003
8.1.6 Control parameters of the load controller
The control parameters can be defined in 3 different ways.
The memory of the load controller contains 5 standard parameter sets.
Depending on the characteristics of the controlled system, a PID triple value can be
selected and activated.
The following standard parameter sets can be chosen:
P [%] I [s] D [s]
Very fast 40 55 15
Fast 4 35 17
Normal 7 90 50
Slow 15 320 40
Very slow 30 400 10
Alternatively, the PID parameters can be directly selected and set within the predefined
value range.
Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6
Params & Display
LoadController
ControllerParam
ContrlParamList
StandardParam
Adaption
very fast
fast
normal
slow
very slow
Or
P-Part (Xp)
I_Part (Tn)
D-Part (Tv)
With the method of adapting the control parameters, the characteristic data of the
controlled system are acquired with an adaption procedure whereupon matching PID
parameters will be calculated.
If possible, the adaption load should be 100 %.
Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6
Params & Display
LoadController
Adaption
StartAdaption
AdaptionLoad
1. Selection of the
standard parameter set
2. Individual setting of
the PID parameters
3. Automatic adaption