Siemens LME7 Series Technical Instructions page 36

LME Series
Terminal
X3-04.5
X3-04.1
X5-03.1
X3-02.1
X5-01.2
X10-05.2
X10-06.1/2
X2-02.4
X2-02.3
X6-03.3
X2-01.3
X4-02.3
X7-04.4
X2-03.3
X7-01.3
SCC Inc.
PME71.111A1 Phase Diagram
Phase
Param.
Description Notes
Main Voltage
Safety Loop
Burner On
Air Pressure Switch
Gas Pressure Switch(es)
Flame Signal
POC (P237 = 1)
POC (P237 = 2)
POC Source
Safety Valve
Blower
Ignition Transformer
Main Valve V1 Note 1
Alarm
Pilot Valve (P247 = 0) Note 1
Pilot Valve (P247 = 1)
Legend :
LOC OFF 21 22 30 40 42
225 257
STARTUP
SAFETY
TIME 1
X X
M
X M
X X
X X
X X
X X X
X X X X X X
X X X X X X X
X X X X X X
X X X X X
X X X X X
M
Energized
Energized or de-energized
X
De-energized
Page 12
Technical Instructions
44 50 50 oP1 74 10
230 231 254 240 234
OPER-
SHUTDOWN
ATION
X
X
X
X
X
X X X X X X
X X X
X X X X X X
X X X X
X X
Must be energized by end of phase
LME-1000
Section 2