Table of Contents
Advertisement
The default value for this parameter is10% that is, the burner will turn off at a temperature 1% higher than the set-point.
Press the ENTER to confirm, the press ESC to exit. Otherwise press ESC to exit without changing data. Press the ESC to exit
6.4.3
PID control parameters
The controller's memory contains 5 standard parameter sets.
If required, 1 of these 5 PID triple values can be copied to the storage locations for the actual values so that it becomes active.
PID standard values for the following applications:
1st level
2nd level
Params & Display
LoadController
It is possible to manually set the PID parameters to any value in the setting range shown below, to activate a PID regulation from the predefined
standard values described below (and edit it further if required), or to use the adaption function (self-setting function) instead of making the settings
manually. The LMV5... then acquires the PID parameters itself.
See the LMV5x Siemens manual for instructions. Generally the choice of the proper pre-set PID that LMV5x suggest (very fast / fast / normal / slow /
very slow) are enough for a proper operation.
Adaption
Very fast
(e.g. for small boiler)
Fast
Normal
Slow
Very slow
(e.g. for large boiler)
Table shows the pre set parameter of the PID regulator according to the internal modulator reaction choice.
The parameter Xp is the proportional band in % of the set-point
3rd level
4th level
ControllerParam
ContrlParamList
The values acquired by the LMV5... adaption
function are
Xp [%]
Tn [s]
42,5
68
14,5
77
6,4
136
4,7
250
3,4
273
5th level
6th level
StandardParam
Adaption
very fast
fast
normal
slow
very slow
Tv [s]
12
14
24
44
48
22
Description
Menu level for making the parameter
settings
Settings for the internal load
controller
Settings for internal load controller
Settings of controller parameter for
internal load controller
Advertisement
Table of Contents
