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
Drive to Prepurge
Position
Test - Air Pressure Switch
Closed
Prepurge
Drive to Ignition Position
Trial for Ignition
Flame Detection
Interval 1: Pilot
Stabilization
Safety Time 2: Pilot and
Main Overlap
Interval 2: Main
Stabilization
Operation
Drive to Low Fire
Shutdown
Drive to Postpurge
Position
Postpurge
Home Run
Phase LOC OFF 21 22 24 22 30 36 40 42 44 50 52 oP oP1 70 72 74 10
Param. 259 225 260 257 230 231 232 240 212 234
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 Note 3 X M
X5-01.2 Gas Pressure Switch(es) Note 4
X9-04.2 High Gas Pressure Switch
POC (P237.00 = 1)
POC (P237.00 = 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
X7-01.3 Pilot Valve Note 1 X X X X X X X X X X X X X X X
X7-04.4 Main Valves Note 1 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
X2-09.3 Drive to High Fire X X X X X X X X X X X X X X X
X2-09.2 Drive to Low Fire X X X X X X X X X X X X X X X X X
X7-02.3 Drive to Ignition 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
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
STARTUP OPERATION
INPUTS
X2-02.4
ACTUATOR OUTPUTS
X
X10-05.1
X10-06.2
X
PME75.812A1 Phase Diagram
X
SAFETY
TIME 1
Flame Signal
SHUTDOWN
SCC Inc. Page 10 Section 4

Siemens LME7 Series Specifications

General

Brand	Siemens
Model	LME7 Series
Category	Controller
Language	English