Siemens LME7 Series Technical Instructions page 47

LME Series
LEGEND - Password Level: S = Service; O = OEM; S/O = View - Service, Write - OEM; Info = Info Menu; Ser = Service Menu
Parameter
Shaded Parameters = Frequently Used
Parameter Name
Number
PW Level
247 Intermittent Pilot
Flame Failure Response
254 Time
(FFRT)
257 Trial for Ignition
259 Actuator Opening Time
Actuator Closing
260
Time
Actuator Purge
515.00
Position
515.01 Actuator Activation
654 Analog Input
SCC Inc.
Default Range
0 0-1
1 0-1
S/O
811 - 4.116 sec
812 - 4.116 sec 0-13.23 sec
840 - 2.205 sec
811 - 58.212 sec
812 - 58.212 sec 0-1237 sec
840 - 300.762 sec
811 - 58.212 sec
812 - 58.212 sec 0-1237 sec
840 - 300.762 sec
500 Level: Actuator Configuration (These parameters are found at the end of the 200 level parameters)
1 0-1
S/O
1 0-1
S 1 0-5
Sets the type of pilot being used. If set to 1, the pilot valve will remain open from phase 40 to the end of
main operation (oP...).
0 = interrupted pilot
1 = intermittent pilot
Sets the flame failure response time (FFRT). The FFRT is the maximum length of time that the flame signal
can go away before a lockout occurs. This setting also doubles as the length of time the signal from the air
pressure switch can go away before a lockout occurs. On PME73.840A1, the FFRT is fixed at 1 second.
0 = 1 second
1 = 3 seconds
This setting defines the overlap of the spark (output X4-02.3) and the pilot valve (output X7-01.3) if a pilot
is used. The LME7 has a base time of 0.3 seconds. This setting adds seconds to the base time. Sets the
length of phase 40.
Set slightly longer than the time it takes for the actuator to drive from fully closed to fully open.
Set slightly longer than the time it takes for the actuator to drive from fully open to fully closed.
Determines the position of the actuator during prepurge and postpurge. Note: This parameter is found at
the end of the 200 level parameters.
0 = Purge at low fire
1 = Purge at high fire
Used to activate or deactivate the use of an actuator. Note: This parameter is found at the end of the 200
level parameters.
0 = deactivated (no actuator)
1 = activated (with actuator)
600 Level: Analog Input Configuration
Sets the type of input signal being connected to terminal X65 or X5-03. This input signal is used to
determine the actuator position during operation.
0 = 3-position
1 = 0-10 VDC
2 = 0-135 Ohm
3 = 0-20 mA
4 = 4-20 mA with lockout when input is less than 4 mA
5 = 4-20 mA without lockout when input is less than 4 mA
Page 7
Description
Technical Instructions
LME-1000
PME73. PME73. PME73.
811A1 812A1 840A1
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Section 3