Siemens LMV5 Quick Start Manual page 105

Menu Path Parameter
Scale20mA perc
Scale20mA temp
Scale20mA press
Params & Display>
Load Controller>
Scale20mA angle
Configuration>
AnalogOutput
Scale 0/4mA
StartAdaption
Params & Display>
LoadController>
Adaption
AdaptionLoad
LMV5 QSG Rev 4
U = User O = OEM
S = Service
Scales the analog output for the percent values (other than Load). Specifically, this parameter defines what
percentage of Pos Air, Load 0, Speed VSD, Flame, etc.. will output 20mA. Range = 0 to 999%, Def / Typ =
100%
Scales the analog output for the temperature values. Specifically, this parameter defines what temperature
(read by Temp Pt1000, Temp Ni1000, etc..) will output 20mA. Range = 0 to 3632 F, Def = 1562 F, Typ =
400 F
Scales the analog output for the pressure value. Specifically, this parameter defines what pressure (read by
Press X61) will output 20mA. Range = 0 to 1449 psi, Def = 2 psi, Typ = 150 psi
Scales the analog output for the actuators. Specifically, this parameter defines what angular degrees will
S
output 20mA. Range = 0 to 90 deg, Def = 90, Typ = 90
Sets the start of the scale for every process value other than Load. (The start of the scale Load 0 can be set
here, but if Load is selected above this parameter has not effect.) For example : If Parameter
"OutValueSelection" is set to Pos Air, "CurrMode 0/4mA" is set to 4mA, "Scale 20mA angle" is set to 90
and "Scale 0/4mA" is set to 0%, then 12 mA will be output when the air actuator is at 45 degrees, and 20mA
will be output at 90 degrees. If all other values are unchanged and "Scale 0/4mA" is now set to 50%, then 4
mA will be output when the air actuator is 45 degrees, and 20mA will be output when the actuator is at 90
degrees. Range = 0 to 999% Def = 0 Typ = 0
This starts the Adaption process. During the Adaption process the LMV will determine the thermal response
of the system (burner / boiler and attached thermal users). Values for PID will be calculated based on this
information.
The LMV does this by modulating to minimum load letting the system "settle" to a particular pressure or
temperature. After this "settling" period the LMV will modulate up to the Adaption Load and see how long it
takes for the system temperature / pressure to respond.
Based off of this response the LMV will choose values for P I and D. These calculated values are
implemented by choosing Adaption under StandardParam.
U
Note : Adaption has to be started when the burner is running and a representitve load exists on the system.
This load is used to determine the thermal response of the system during Adaption only.
LMV will travel to this load during the heating phase of the Adaption.
Range = 40 to 100% Def / Typ =100
Sec 4 Pg 49
Descriptions / Notes
All
o
,
60-62
www.scccombustion.com