LMV Series
Technical Instructions
LV3-1000
Gas Oil Gas Oil U/S/O Default Range Description
LEGEND - Password Access: U = User, S = Service, O = OEM, U/S = View - User, Write - Service, S/O = View - Service, Write - OEM
Shaded Parameters = Frequently Used. ** Parameters = Must Set. Fuel 1 parameters for LMV36 only.
Parameter Name
Max Speed Ignition Not set 20-75%
This is used to guarantee the maximum ignition speed of the VSD is below this setting when using a gas
train with pneumatic fuel-air ratio control. Do not adjust if using the LMV3 for fuel-air ratio control via
parallel positioning.
Speed Range
Operation
00 = Not set
01 = Not set
10-100%
When using a gas train with pneumatic fuel-air ratio control, this defines the minimum and maximum
allowable VSD speeds when the burner is firing. Do not adjust if using the LMV3 for fuel-air ratio control via
parallel positioning.
Index 00 = minimum speed. Index 01 = maximum speed
VSD Speed PS Off 50% 20-90%
If a second air pressure switch is used on terminal X5-02.2 (see parameter 237/337), this parameter sets the
VSD speed below which this pressure switch is expected to be open (off).
VSD Speed PS On 80% 45-100%
If a second air pressure switch is used on terminal X5-02.2 (see parameter 237/337), this parameter sets the
VSD speed above which this pressure switch is expected to be closed (on).
Fault History U
Shows the current status (fault) along with the 24 most recent faults. 701 = current status, 702 = most
recent fault, 703 = next most recent fault, etc. Each fault has indices that provide additional information
about the fault:
Index 01 = code
Index 02 = diagnostic
Index 03 = class (not used in North America)
Index 04 = phase
Index 05 = start number
Index 06 = load
Index 07 = fuel (LMV36 only)
Actual Load Displays the real time load percentage. Index 00 (fuel load) and 01 (air load) show identical values.
Analog Speed Shift
Displays the real time mA signal being measured on terminal X64 as a percentage. The percentage is always
scaled as follows: -15% = 4 mA, 0% = 10 mA, 25% = 20 mA.
Target Speed Shift
Displays the real time target of the VSD speed shift as a percentage of standardized speed, with shift limits
and shift attenuation applied.
Actual Shift Displays the real time actual VSD speed shift as a percentage of the standardized speed.
Actual Position U
Displays the current position of the actuators in degrees.
Index 00 = fuel actuator. Index 01 = air actuator
Target Speed S
Displays the real time target speed for the VSD with all shifts and attenuations applied. Displayed as a
percentage of the standardized speed.
903
922
918
917
916
668
669
670
671
932
900 Level: Operational Data
700 Level: Fault History
701-725 Read only
Read only
S/O
S
SCC Inc. Page 16 Section 3
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