User's Manual

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Table Of Contents

SITRANS LR250 (PROFIBUS PA)
Legal information
Table of contents
1 Introduction
- 1.1 The manual
- 1.2 Firmware revision history
2 Safety notes
- 2.1 Safety marking symbols
- 2.2 FCC Conformity
- 2.3 CE Electromagnetic Compatibility (EMC) Conformity
3 Description
- 3.1 SITRANS LR250 overview
- 3.2 Programming
- 3.3 Applications
- 3.4 Approvals and certificates
4 Installing/mounting
- 4.1 Pressure applications
  - 4.1.1 Pressure Equipment Directive, PED, 97/23/EC
- 4.2 Mounting location
- 4.3 Installation instructions
- 4.4 Flange bolting, Flanged encapsulated antenna only
5 Connecting
- 5.1 Power
- 5.2 Connecting SITRANS LR250
  - 5.2.1 Basic PLC configuration with PROFIBUS PA
- 5.3 Wiring setups for hazardous area installations
- 5.4 Instructions specific to hazardous area installations
6 Commissioning
- 6.1 Operating via the handheld programmer
- 6.2 Application examples
7 Remote operation
- 7.1 Operating via SIMATIC PDM
- 7.2 Operating via FDT
8 Parameter reference
- 8.1 Alphabetical parameter list
9 Service and maintenance
- 9.1 Maintenance
- 9.2 Unit repair and excluded liability
- 9.3 Part replacement
10 Diagnosing and troubleshooting
- 10.1 Device status icons
- 10.2 General fault codes
- 10.3 Operation troubleshooting
11 Technical data
- 11.1 Power
- 11.2 Performance
- 11.3 Interface
- 11.4 Mechanical
- 11.5 Environmental
- 11.6 Process
- 11.7 Approvals
- 11.8 Programmer (infrared keypad)
12 Dimension drawings
- 12.1 Threaded horn antenna
- 12.2 Threaded horn antenna with extension
- 12.3 Flanged horn antenna
- 12.4 Flanged horn antenna with extension
- 12.5 Flanged encapsulated antenna (2"/DN50/50A sizes only)
- 12.6 Flanged encapsulated antenna (3"/DN80/80A sizes and larger)
- 12.7 Threaded PVDF antenna
- 12.8 Threaded connection markings
- 12.9 Raised-Face flange per EN 1092-1 for flanged horn antenna
- 12.10 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna
- 12.11 Flat-Face flange
- 12.12 Process connection tag (pressure rated versions)
A Appendix A: Technical reference
- A.1 Principles of operation
- A.2 Echo processing
- A.3 Maximum Process Temperature Chart
- A.4 Process Pressure/Temperature Derating Curves
B Appendix B: PROFIBUS PA profile structure
- B.1 PROFIBUS Level Device Design
- B.2 Block Model
C Appendix C: Communications via PROFIBUS
- C.1 Device configuration
  - C.1.1 SIMATIC PDM
  - C.1.1.1 Electronic Device Description
- C.2 Network configuration
  - C.2.1 The GSD file
- C.3 Bus termination
- C.4 Power demands
- C.5 PROFIBUS address
- C.6 Operating as a profile device
  - C.6.1 Configuring a new device
  - C.6.2 Configuring PROFIBUS PA with an S7-300/ 400 PLC
- C.7 Cyclic versus acyclic data
  - C.7.1 Cyclic data
- C.8 Status byte
- C.9 Condensed status
- C.10 Diagnostics
D Appendix D: Certificates and Support
- D.1 Certificates
- D.2 Technical support
13 List of abbreviations
14 LCD menu structure
Glossary
Index

Connecting

5.2 Connecting SITRANS LR250

SITRANS LR250 (PROFIBUS PA)

Operating Instructions, 01/2014, A5E32221386-AB

Wiring instructions

1. Strip the cable jacket for approximately 70 mm (2.75") from the end of the cable, and thread

the wires through the gland. (If cable is routed through conduit, use only approved suitable-

size hubs for waterproof applications.)

2. Connect the wires to the terminals as shown: the polarity is identified on the terminal block.

3. Ground the device according to local regulations.

4. Tighten the gland to form a good seal.

5. Close the lid and secure the locking screw before programming and device configuration.

Note

•

PROFIBUS PA cable shield must be terminated at both ends of the cable for it to work

properly.

•

If a Weidmüller or other current limiting junction box is connected to this device, please

ensure that the current limit is set to 40 mA or higher.

•

Please refer to the PROFIBUS PA User and Installation Guidelines (order number 2.092)

for information on installing PROFIBUS devices at:

PROFIBUS PA (

http://www.profibus.com/)