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RVW26.000B27
Siemens RVW26.000B27 User Manual
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CC1P7873.1en
15.10.2002
Siemens Buil
ding Technol
ogies
HV
AC Produc
ts
RVW26.000B2
7
Electronic Air / Fuel Ratio Control Sy
stem
Basic Documentation
The RVW26... and this Basic Documentation are intended f
or use by OEMs which integrate the ratio control system
in
their products!
2
Table of Contents
Default Chapter
2
Table of Contents
2
1 Safety Notes
4
Warning Notes
4
Mounting Notes
4
Installation Notes
4
Commissioning Notes
4
Norms and Standards
4
Service Notes
5
Disposal Notes
5
2 Front View and Basic Design
6
3 General
7
Application
8
4 Product Range Overview
11
5 Description of Functions
13
Burner Startup
13
Startup
14
Burner Operation
15
Shutdown
18
Function Description of Power on and Reset
19
Selection of Type of Fuel
20
Compensation of Hysteresis
22
Application of a Correcting Variable
24
Load Signal Output "X1
26
6 Sequence of Functions
27
Rvw25
27
Explanations Relating to the Sequence Diagram
27
Sequence Diagram
28
7 Basic Diagram
29
8 Block Circuit Diagram
30
9 Assignment of Terminals and Description of Inputs / Outputs (I / O)
31
Assignment of Terminals
31
Description of the Inputs / Outputs
32
10 Display on the Control Unit
33
11 Handheld Terminal AZW20.20
34
12 Data Storage Module RZD20
35
Procedure for Replacing the RVW26
36
13 Functional Readiness and Faults
37
14 Error Codes and Rectification of Faults
38
Types of Faults and Troubleshooting
38
Error Code Table with Hints on Troubleshooting
39
15 Programming the RVW26
42
Structure of the Display
44
16 Applications
51
Basic Diagram of a Plant with a Modulating Burner (One Type of Fuel)
51
Basic Diagram of a Plant with a Modulating Burner (One Type of Fuel)
52
17 Engineering Notes
53
Requirements Placed on Burner Design
53
Engineering
55
Requirements Placed on the Actuators and Potentiometers
56
Requirements Placed on the Variable Speed Drive and the Fan Speed Feedback Signal
58
18 Notes on the Commissioning of a Burner
59
Setting Instructions for the RVW26
61
Permissible Range of Curvepoints
63
Setting Report
64
19 Technical Data
68
4
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Siemens RVW26.000B27 Specifications
General
Brand
Siemens
Model
RVW26.000B27
Category
Control Systems
Language
English
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