Siemens 3RS2

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Mounting

12.7 Disassembling from a level surface

3RS2 temperature monitoring relay

92 Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002

Main Page

Table of Contents3
Introduction7
Required Basic Knowledge7
Scope of the Manual7
Operating Instructions7
Siemens Industry Online Support7
Siemens Industry Online Support App9
Support Request9
Security Information9
Recycling and Disposal10
Safety Instructions, Standards11
Product-Specific Safety Instructions11
Hazardous Voltage11
Intended Use11
Radio Interference12
Standards, Approvals and Certificates12
Atex15
Safety and Commissioning Instructions for Hazardous Areas15
Use in Areas Subject to an Explosion Hazard Due to Gases or Dust16
Analog Devices17
Applications17
General Functions17
Performance Characteristics18
Connection Systems18
Sensor Types19
Measuring Ranges19
Temperature Monitoring20
Operator Control21
Operator Controls and Display Elements, Settings, Measuring Ranges21
Time Diagrams22
Digital Devices25
Applications25
General Functions26
Standard Function26
Special Functions27
Safety Function27
Temperature Limiter TB28
Temperature Monitor TW30
Communication31
Performance Characteristics31
Connection Systems32
Sensor Types32
Measuring Ranges33
Using Sensors34
Operator Control34
Operator Controls and Display Elements34
Display36
Menu-Based Operation37
Reset43
Time Diagrams44
Diagnostics47
Digital Devices with IO-Link49
Performance Characteristics49
Communication50
Connection Options for IO-Link50
Time Diagrams52
Configuring with STEP 755
Configuring with STEP 7 - Prerequisites55
Configuring with STEP 7 and S7-PCT56
Configuring with STEP 7 and S7-PCT /GSD Variant)56
Configuring Without STEP 757
Configuring Without STEP 7 - Prerequisites57
Module Replacement58
Module Replacement (Replacement of an IO-Link Device)58
Module Replacement with PG/PC58
Module Replacement Without PG/PC58
Integration into the SIMATIC Environment59
Acyclic Data Exchange with the FB IOL_CALL59
Diagnostics Via IO-Link60
Sensor Expansion Module63
Versions63
Communication63
Connection Systems63
Sensor Types63
Operator Control64
Leds64
Status Display65
Thermocouples67
Definition67
Characteristic Curves of Thermocouples67
Resistance Sensors69
Definition69
Characteristic Curves69
Circuit Diagrams71
Using the 3RS25 Analog Device to Implement a Simple 2-Step Controller71
Using the Digital Device to Implement a Simple 2-Step Controller with Simultaneous Output of an Alarm Value72
Using the Digital Device to Implement a Simple 3-Step Controller with Simultaneous Output of an Alarm Value73
Connection75
Warning Notices75
General Information75
Connection Data for Terminals76
Terminal Assignment76
Connection Tool78
Connecting the Screw Terminals79
Disconnecting Screw Terminals80
Wiring Rules for Spring-Type Terminals (with Push-In Technology)80
Connect the Spring-Type Terminal (Push-In)81
Disconnect the Spring-Type Terminal (Push-In)82
Attaching the Terminals83
Removing the Terminals84
Connection of Thermocouples and Resistance Sensors85
Mounting87
Warning Notices87
Mounting Position, Installation Width/Overall Depth, Layout87
Terminal Coding88
Mounting on a Standard Rail88
Disassembling from a Standard Mounting Rail89
Mounting on a Level Surface90
Disassembling from a Level Surface91
Technical Data93
Technical Data in Siemens Industry Online Support93
Insulation Concept of the Plant93
Cax Data97
Cax Data Types97
Spare Parts/Accessories99
Overview99
Terminals100
Device Fusing100
Process Data and Data Sets101
Data Sets - Structure101
Data Sets - Overview101
Process Image Output (PIQ) and Input (PII)102
Identification Data103
Data Set 92 - Diagnostics104
Data Set 94 - Measured Values106
Data Set 95 - Measured Values (Floating-Point Format)107
Data Set 131 - Parameters107
Glossary113
Index117

Table of Contents

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