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LMV37.4 Series
Siemens LMV37.4 Series User Manual
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Software version
V03.70
CC1P7546en
17.12.2018
Building Technologies
LMV37.4...
Basic unit with integrated fuel-air ratio control for
forced draft burners
Basic Documentation
The LMV37.4 and this Basic Documentation are intend
ed for OEMs which integrate the units in their
products!
2
Table of Contents
Default Chapter
3
Table of Contents
3
1 Safety Notes
10
Warning Notes
10
Mounting Notes
11
Installation Notes
12
Electrical Connection of the LMV37.4
13
Connection BC Interface Via Integrated RJ11 Jack (X56)
14
Electrical Connection of Flame Detectors
15
Commissioning Notes
15
Notes on Settings and Parameter Settings
17
Standards and Certificates
18
Service Notes
19
Life Cycle
19
Disposal Notes
19
2 Makeup of Structure / Function Description
20
For Europe
20
For North America
20
General Information
21
3 Type Summary
21
4 Technical Data
22
Basic Unit LMV37.4
22
Terminal Loading "Inputs
23
Terminal Loading "Outputs
23
Analog Output / Load Output X74 Pin 3
25
Cable Lengths
25
Cross-Sectional Areas
25
Connections of Actuators
25
Signal Cable AGV50 from AZL2 BC Interface
26
Environmental Conditions
26
Flame Detector
27
Ionization Probe
27
UV Flame Detectors QRA2 / QRA4 / QRA10
29
Photoresistive Flame Detectors QRB1 / QRB3
30
Yellow Flame Detector QRB4
31
Blue-Flame Detectors QRC
32
5 Dimensions
33
Lmv37.4
33
6 Display and Diagnostics
34
7 Basic Unit LMV37.4
34
Description of Inputs and Outputs
34
Flame Detectors
35
Loss of Flame
35
Extraneous Light
36
No Flame at the End of Safety Time
36
Flame Intensity
36
Supervision of Flame Detector
36
Flame Detection Sensitivity
37
Digital Inputs
38
Safety Loop X3-04 Pin 1 and 2
38
Burner Flange X3-03, Pin 1 and 2
39
Input for External Load Controller (on / OFF) X5-03, Pin 1
39
Inputs X5-03 Pin 2 and 3 (Open / Close or Stage 2 / Stage 3)
39
Air Pressure Switch X3-02
40
Gas Pressure Switch Valve Proving - or Heavy Oil Direct Start X9-04
41
Gas / Oil Pressure Switch-Min, Start Release Gas X5-01
43
Setting the Time for Making the Pressure Switch Test
45
Gas / Oil Pressure Switch-Max / or POC Contact, Start Release Oil / Additional Speed-Dependent Air Pressure Switch X5-02
46
Reset X8-04, Pin 1
49
Digital Outputs
50
Output Alarm Type No-SI - X3-05, Pin 2
50
Fan Motor Contactor Type si - X3-05, Pin 1
50
Fan Continuous Purging X3-05, Pin 3
50
Output Ignition Type si (IGNITION) X4-02
51
Outputs Fuel Valves Type si V1 / V2 / V3 / PV) X8-02, X7-01, X7-02
52
Output Safety Valve Type si X6-03
52
Output for Indication of Operation X8-04, Pin 2
52
Program Sequence
53
Time Parameters
53
Valve Proving
54
Valve Proving with Separate Pressure Switch X9-04
55
Valve Proving Via Gas Pressure Switch-Min X5-01
56
Lockout Phase (Phase 00)
56
Safety Phase (Phase 01)
57
Special Functions During the Program Sequence
58
Reset / Manual Lockout
58
Alarm Upon Start Prevention
59
Possible Start Preventions
60
Repetition Counter
60
Start Without Prepurging (as Per en 676)
63
Gas Shortage Program
64
Program Stop Function
65
Forced Intermittent Operation (<24 Hours)
65
Low-Fire Shutdown
65
Continuous Fan
66
Test Function for Approval of Burner - Loss-Of-Flame Test (TÜV Test)
67
Postpurging in the Lockout Position
68
Switching Back to Pilot
69
Fuel Trains (Application Examples)
71
Sequence Diagrams
80
Gas Direct Ignition "G", "G Mod", "G Mod Pneu
81
Gas Pilot Ignition 1 "Gp1", "Gp1 Mod", "Gp1 Mod Pneu
82
Gas Pilot Ignition 2 "Gp2", "Gp2 Mod", "Gp2 Mod Pneu
83
Light Oil Direct Ignition "Lo", "Lo Mod", "Lo 2-Stage", "Lo 3-Stage
84
Light Oil Pilot Ignition "Logp" "Logp Mod" "Logp 2 Stage
85
Heavy Oil Direct Ignition "Ho", "Ho Mod Separate Circulation Control", "Ho 2-Stage Separate Circulation Control
86
Heavy Oil Direct Ignition "Ho", "Ho Mod Without Circulation Control", "Ho 2- Stage Without Circulation Control", "Ho 3-Stage Without Circulation Control
87
Legend to the Sequence Diagrams
88
8 Selection of Operating Mode
91
Deleting Curves
93
9 Connection to Load Controllers
94
Load Controller on Contact X5-03 Pin 1
94
External Load Controller Via Contacts X5-03, Pin 2 / Pin 3
94
Default Output Via Building Automation - X92
97
Manual Output
99
Output with Curve Settings
99
External Load Controller Via Analog Input X64 Pin 1 / X64 Pin 2
100
Switching Thresholds for Modulating Operation
100
Switching Thresholds for Multistage Operation
101
Prioritization of Load Controller Sources
102
Emergency Operation with Several Load Controller Sources
103
Manual Control
103
10 Electronic Ratio Control
104
General
104
Behavior Outside the Operating Positions
104
Traveling Speed
104
Home Position
104
Prepurging
105
Ignition
105
Postpurging
105
Modulating Operation
106
Definition of Curves
106
Traveling Speed / Maximum Curve Slope
107
Entering the Running Position
108
Operating Position
108
Limitation of Modulation Range
109
Setting the Minimum and Maximum Output
110
Multistage Operation
111
Definition of Curves
111
Traveling Speed
111
Adjustment of Output
112
Entering the Operating Position
112
Operating Position
112
Limitation of Modulation Range
113
End of Operating Position
113
Notes on Settings and Parameter Settings
114
11 Actuators X53 / X54
115
Function Principle
115
Definition of Angles
115
Referencing
116
Reference Travel
118
Direction of Rotation
120
Monitoring the Actuator Positions
121
Changing the Error Detection Band for Monitoring the Actuator Positions
123
Forced Travel
123
Detection of Line Interruptions
123
Protection against Actuator Mixup
124
Proposal for Implementation
124
12 Fan Control
125
Function Principle
125
Activation of VSD/PWM Fan
125
VSD Control X74 Pin 3
126
PWM Fan Control X64 Pin 3
126
Safe Separation of Mains Voltage and Protective Extra Low-Voltage
127
Ramp Time
127
Acquisition of Speed
128
Acquisition of Speed with Proximity Switch
128
Acquisition of Speed with Hall Generator
129
Forced Travel Fan
130
Speed Control
130
Speed Supervision
131
Extended Speed Supervision
132
Setting the Parameters of VSD
133
Standardization of Speed
134
Control of Fan Motor with Pneumatic Fuel-Air Ratio Control
138
EMC of LMV37.4 and VSD
138
Special Conditions for PWM Fan in Electronic Fuel-Air Ratio Control System
138
Characteristics PWM Fan
139
Acquisition of Speed PWM Fan
140
Trim Function
141
Settings and Mode of Operation
142
Optional Internal Checks
143
External Tests (Optional)
145
Description of Connection Terminals
147
Vsd
147
PWM Fan
147
13 Load Output X74 Pin 3
148
Safe Separation of Mains Voltage and Extra Low-Voltage
148
Modulating Operation
149
2-Stage Operation
149
14 Fuel Meter Input X75 Pin 1 / X75 Pin 2
150
Configuration of Fuel Meter
150
Types of Fuel Meters
150
Configuration of Pulses Per Volume Unit
150
Reading and Resetting the Meter Readings
150
Fuel Throughput
151
Configuration
151
Reading out the Fuel Throughput
151
15 Connection and Internal Diagram
152
16 Special Feature: Burner Identification
153
17 Connection to Superposed Systems
153
General Information and Building Automation Functions
153
Modbus
155
18 PC Software ACS410
156
19 Error History
157
Error Classes
157
Makeup of Error History
158
20 Lifecycle Function
158
21 Safety Notes on Use of the AZL2
159
22 Operating Via AZL2
160
Description of Unit/Display and Buttons
160
Meaning of Symbols on the Display
161
Brightness of Display
161
Special Functions
161
Manual Lockout
161
Manual Control (Manual Request for Output)
162
Timeout for Menu Operation
162
Backup / Restore
163
Backup
164
Restore
166
23 Operation of LMV37.4 Via the AZL2
168
Normal Display
168
Display in Standby Mode
168
Display During Startup / Shutdown
168
Display of Program Phases
168
Display of Program Phase with Remaining Running Time until End of the Phase Is Reached
168
List of Phase Displays
169
Display of Operating Position
170
Fault Status Messages, Display of Errors and Info
171
Display of Errors (Faults) with Lockout
171
Reset
171
Activating Info / Service Mode from Lockout
171
Error with Safety Shutdown
172
General Information
172
Prevention of Startup
172
Safety Loop
172
24 Menu-Driven Operation
173
Assignment of Levels
173
25 Info Level
174
Display of Info Level
174
Display of Info Values (Examples)
175
Identification Date
175
Identification Number
175
Burner Identification
176
Number of Startups Resettable
177
Total Number of Startups
178
End of Info Level
178
26 Service Level
179
Display of Service Level
179
Display of Service Values (Example)
180
Number of Faults
180
Error History
180
Intensity of Flame
180
End of Service Level
181
27 Parameter Level
182
Entry of Password
183
Entry of Burner Identification
185
Change of Heating Engineer's Password
187
Change of Oem's Password
188
Use of Parameter Level
188
Structure of Parameter Levels
189
Parameters Without Index, with Direct Display
190
Using the Example of Parameter 208: Program Stop
190
Parameters Without Index, with no Direct Display (with Parameters Having a Value Range >5 Digits)
192
Using the Example of Parameter 162: Operating Hours Resettable
192
Parameter with Index, with Direct Display
194
Using the Example of Parameter 501: No-Flame Positions Fuel Actuator
194
Parameters with Index, with no Direct Display
196
Using the Example of Parameter 701: Errors
196
Fuel-Air Ratio Curves - Settings and Commissioning
199
Initial Commissioning
199
Setting Curvepoints P0 and P9 for Modulating Operation ("G Mod", "Gp1 Mod", "Gp2 Mod" and "Lo Mod")
202
Setting Curvepoints P0 and P9 for "G Mod Pneu", "Gp1 Mod Pneu" and "Gp2 Mod Pneu
203
Warm Settings for Modulating Operation ("G Mod", "Gp1 Mod", "Gp2 Mod" and "Lo Mod")
204
Warm Settings for Modulating Mode ("G Mod Pneu", "Gp1 Mod Pneu" and "Gp2 Mod Pneu")
209
Cold Settings for "G Mod", "Gp1 Mod", "Gp2 Mod" and "Lo Mod
209
Cold Settings for "G Mod Pneu", "Gp1 Mod Pneu" and "Gp2 Mod Pneu
210
Editing the Curvepoints
211
Interpolating the Curvepoints
212
Setting of Curvepoints for Multistage Mode ("Lo 2-Stage" and "Lo 3-Stage")215
215
Warm Settings for "Lo 2-Stage" and "Lo 3-Stage
216
Cold Settings for Multistage Mode ("Lo 2-Stage" and "Lo 3-Stage")
220
Intensity of Flame During Curve Settings
221
28 Parameter List LMV37.4
222
29 Error Code List (All LMV2 Types / LMV3 Types)
238
30 Revision History of LMV37.4
255
31 List of Figures
260
4
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Siemens LMV37.4 Series Specifications
General
Brand
Siemens
Model
LMV37.4 Series
Category
Controller
Language
English
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