Siemens LMV5 Quick Start Manual page 94

Menu Path Parameter
NumFuelActuators
ShutdownBehav
Params & Display>
RatioControl
ProgramStop
Params & Display>
O2ContrGuard> OptgMode
Gas/Oil Settings
LMV5 QSG Rev 4
U = User O = OEM
S = Service
It is possible, though not recommended, to configure the LMV for 1 fuel actuator,
O and link that single actuator to a gas valve AND an oil valve. Also useful if firing 2 gaseous fuels
Range = 1, 2 Def / Typ = 2
Controls the position of the Actuators when a lockout occurs.
Range = HomePos, PostpurgeP, Unchanged
Def / Typ = HomePos
For gas or oil firing, this parameter will stop the sequence, in the selected phase.
S
This is useful for service work, such as; adjusting pilots, measuring prepurge, etc.
The LMV can be held (program stopped) in the following phases:
24 prepurge, 32 Prepurge FGR, 36 Ignition position, 44 Interval 1 (pilot stabilization), 52 Interval 2 (Main
flame Stabilization), 72 Postpurge position, 76 Postpurge FGR Def = deactivated, Typ = deactivated (for
normal operation)
4 choices for each fuel. The default is man deact.
1. man deact - O2 trim controller AND O2 monitor are de-activated. Burner runs on the Ratio Curve (fuel
lean)
2. O2 Limiter - (also called O2 Guard) Only the O2 monitor is activated. Any O2 fault , including low O2 (
levels in the stack will cause a burner shutdown.(O2 guard curve or "rich" curve must be input for this
function.)
3. O2 Control - O2 trim controller AND O2 monitor are activated. Any O2 fault will cause a burner
shutdown.(O2 guard curve or "rich" curve, and O2 setpoint or curve must be input for this function.)
4. conAutoDeact configured to Automatically Deactivate the O2 trim controller AND O2 monitor if any O2
fault occurs. Burner runs on the Ratio Curve (fuel lean) when O2 guard/control deactivates. This is the best
choice to keep the burner on-line and avoid any shutdowns due to any O2 system fault, including O2 sensor
not being up to temperature. Note: auto deact - This status will appear when the O2 control deactivates itself,
due to an operating fault or componenent malfunction.
If the control goes into auto deact, it has to be reactivated under: Operation > O2Ctrl activte .
Sec 4 Pg 38
Descriptions / Notes
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