Siemens LMV5 Quick Start Manual page 101

Menu Path Parameter
SD_Stage1Off
SD_Stage2Off
Params & Display>
SD_Stage3Off
LoadController>
ControllerParam
ThreshStage2On
ThreshStage3On
TL_Thresh_Off
Params & Display>
LoadController>
TempLimiter
(Temperature
TL_SD_On
ONLY)
LMV5 QSG Rev 4
U = User O = OEM
S = Service
Determines what Temp. / Press. a staged oil combustion burner, will disengage stage1.
Set at a positive % so that the burner will turn off stage1 oil at a set % above the current setpoint.
The % is based on the current setpoint. Range = 0 to +50%, Def / Typ =10%
Determines what Temp. / Press, a staged oil combustion burner, will disengage stage 2.
Set at a positive % so that the boiler will turn off stage 2 oil at a set % above the current setpoint.
The % is based on the current setpoint. Range = 0 to +50%. Def / Typ = 8%
Determines what Temp. / Press. a staged oil combustion burner, will disengage stage 3.
Set at a positive % so that the boiler will turn off stage 3 oil at a set % above the current setpoint.
U
The % is based from the current setpoint. Range = 0 to +50%. Def / Typ = 6%
This value is the integral of a control deviation multiplied by time.
This serves to not call on stage 2 unless the pressure / temperature deviates from the desired setpoint for a
length of time and/or by a large margin.
Range = 0 to 1000. Def / Typ = 300
This value is the integral of a control deviation multiplied by time.
This serves to not call on stage 3 unless the pressure / temperature deviates from the desired setpoint for a
length of time and/or by a large margin.
Range = 0 to 1000. Def / Typ = 600
If a temperature sensor is used, (connected to input X60) this parameter controls at what temperature the
burner goes into alarm, and shutdown, due to an over temperature situation.
LMV5 faults, and does NOT lockout. LMV5 re-starts when temperature goes below TL_SD_On.
This is normally used to prevent hot water boilers from exceeding their design temperatures.
Setting does NOT APPLY to STEAM/PRESSURE, Range = 0 to 2000º F. Def / Typ = 203º F.
S
Creates a negative dead band for the temperature limiter function. If the temperature reaches the threshold
off value (previous parameter), the burner will shut off with a alarm.
This setting controls what temperature under the threshold off value the burner can be restarted.
Setting does NOT APPLY to STEAM/PRESSURE, Range = -50 to 0%. Def / Typ = -5%
Sec 4 Pg 45
Descriptions / Notes
60-62
www.scccombustion.com