Siemens LMV5 Quick Start Manual page 100

Menu Path Parameter
MinActuatorstep
SW_FilterTmeCon
SetpointW1
Params & Display>
LoadController>
SetpointW2
ControllerParam
SD_ModOn
SD_ModOff
SD_Stage1On
LMV5 QSG Rev 4
U = User O = OEM
S = Service
This controls the resolution of the load controller. If the PID loop requires a load change and the load change
is less than this value, the load will not actually change and the actuators will not move. In short, a deadband
adjustment for actuator movement or a deadband for the output of the PID loop. Increasing this setting can
reduce actuator "hunting" during normal operation. Range = 0.5 to 10% Def / Typ = 1%
S/W filter time constant in seconds. This is a filter which is applied to the pressure or temperature that the
LMV is reading. Basically a filter for the input of the PID loop. Range = 1-10, Def = 3
W1 is the normal setpoint of the boiler, in units of temperature or pressure depending on the sensor attached
to the LMV.
Also access at: Operation > Boiler setpoint.
Range = 0 to range of Pressure or Temp sensor. Def / Typ = 0
W2 is an alternate setpoint of the boiler, in units of temperature or pressure depending on the sensor
attached to the LMV.
Also access at: Operation > Boiler setpoint.
U
If the LMV is in Internal load controller mode 2 this setpoint can be switched
to W2 (from W1) by closing a contact between X62.1 and X62.2. ( ) y g
Usually used for a setpoint setback.
Range = 0 to range of Pressure or Temp sensor. Def / Typ = 0
Determines what Temp / Press a modulating burner will cycle on.
Can be set at a positive or negative %, either above or below the current setpoint respectively.
The % is based from the current setpoint. Range = -50% to +50%. Def / Typ = 1% If current setpoint = 200,
and this is set to -3%, then the burner will cycle back on at 194.
Determines what Temp. / Press. a modulating burner will cycle off.
Set at a positive % so that the burner will turn off a set % above the current setpoint.
The % is based from the current setpoint. Range = 0 to +50%. Def / Typ = 10%
Determines what Temp. / Press staged oil combustion burner will engage stage1.
Set at a negative %, so that the burner will turn on stage1 at a set % below the current setpoint.
The % is based on the current setpoint. Range = -50 to +50%, Def / Typ = -2%
Sec 4 Pg 44
Descriptions / Notes
60-62
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