Siemens LMV3 series Technical Instructions page 64

LMV Series
Parameter #
Fuel 0 Fuel 1
Parameter Name
Gas Oil Gas Oil
668
Max Speed Ignition
Speed Range
669
Operation
670 VSD Speed PS Off
671 VSD Speed PS On
701-725
Fault History
903
Actual Load
916 Analog Speed Shift
917 Target Speed Shift
918 Actual Shift
922 Actual Position
932 Target Speed
SCC Inc.
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.
U/S/O Default Range
Not set 20-75%
00 = Not set
10-100%
01 = Not set
S/O
50% 20-90%
80% 45-100%
700 Level: Fault History
Read only
U
900 Level: Operational Data
S
Read only
U
S
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.
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
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).
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).
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)
Displays the real time load percentage. Index 00 (fuel load) and 01 (air load) show identical values.
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.
Displays the real time target of the VSD speed shift as a percentage of standardized speed, with shift limits
and shift attenuation applied.
Displays the real time actual VSD speed shift as a percentage of the standardized speed.
Displays the current position of the actuators in degrees.
Index 00 = fuel actuator. Index 01 = air actuator
Displays the real time target speed for the VSD with all shifts and attenuations applied. Displayed as a
percentage of the standardized speed.
Page 16
Description
Technical Instructions
LV3-1000
Section 3