Siemens LME7 Series Technical Instructions

LME Series
Technical Instructions
Document No. LME-1000
Lockout
Standby, Waiting for Call
for Heat
Test - Air Pressure Switch
Open
Blower On
D
rive to Prepurge
Position
Test - Air Pressure Switch
Closed
Prepurge (Note 2)
D
rive to Ignition Position
Trial for Ignition
Flame Detection
Interval 1: Pilot
Stabilization
Safety Time 2: Pilot and
Main Overlap
Interval 2: Main
Stabilization
Operation
D
rive to Low Fire
Drive to Postpurge
Position
Postpurge (Note 2)
H
ome Run
Evacuate
Atmospheric Test
Fill
Pressure Test
Phase LOC OFF 21 22 24 22 30 36 40 42 44 50 oP1 oP oP1 72 74 10 80 81 82 83
Param. 259 225 260 257 230 231 232 240 212 234 242 243 244 245
Terminal Description Notes
X3-04.5 Main Voltage
X3-04.1 Safety Loop X X
X5-03.1 Burner On M
X3-02.1 Air Pressure Switch X M
X5-01.2 Gas Pressure Switch(es)
X9-04.2 Valve Proving Pressure Switch X
POC (P237 = 1)
POC (P237 = 2) X
X2-02.3 POC Source X X
X6-03.3 Safety Valve X X
X2-01.3 Blower X X X
X4-02.3 Ignition Transformer X X X X X X X X X X X X X X X X X X X X X
X7-01.3 Pilot Valve Note 1 X X X X X X X X X X X X X X X X X X
X7-04.4 Main Valve V1 Note 1 X X X X X X X X X X X X X X X X X
X7-02.3 Main Valve V2 X X X X X X X X X X X X X X X X X
X2-03.3 Alarm X X X X X X X X X X X X X X X X X X X X X
X2-09.3 Drive to High Fire X X X X X X X X X X X X X X X X X X
X2-09.2 Drive to Ignition / Low Fire X X X X X X X X X X X X X X X
X2-09.1 Drive Closed X X X X X X X X X X X X X X X X X X X X
X2-09.4 Position Feedback M M M M M
Legend :
Energized X De-energized
Energized or de-energized M
Must be energized by end of phase
INPUTS
X2-02.4
ACTUATOR
Flame Signal
OUTPUTS
SHUTDOWNOPERATION STARTUP VALVE PROVING
X
X10-05.2
X10-06.1/2
X
PME73.811A1 Phase Diagram
X
SAFETY
TIME 1
SCC Inc. Page 10 Section 3

Siemens LME7 Series Specifications

General

Brand	Siemens
Model	LME7 Series
Category	Controller
Language	English