Siemens SITRANS L Compact Operating Instructions
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Siemens SITRANS L Compact Operating Instructions

Siemens SITRANS L Compact Operating Instructions

With ma/hart sensor inputs
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SITRANS LT500 with mA/HART sensor inputs
SITRANS L
Controllers
SITRANS LT500 with mA/HART
sensor inputs
Compact Operating Instructions
7ML60.. (SITRANS LT500 with mA/HART sensor inputs)
05/2022
A5E52003504-AA
Getting started
Introduction
Safety notes
Installing/mounting
Connecting
Commissioning
Service and maintenance
Technical specifications
Product documentation and
support
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Summary of Contents for Siemens SITRANS L

  • Page 1 SITRANS LT500 with mA/HART sensor inputs Getting started Introduction SITRANS L Safety notes Installing/mounting Controllers SITRANS LT500 with mA/HART sensor inputs Connecting Commissioning Compact Operating Instructions Service and maintenance Technical specifications Product documentation and support 7ML60.. (SITRANS LT500 with mA/HART sensor inputs)

  • Page 2: Legal Information

    Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.

  • Page 3: Table Of Contents

    Table of contents Getting started ............................6 Introduction ............................7 Purpose of this documentation .................... 7 Designated use ........................7 Product compatibility ......................7 Checking the consignment ....................10 Security information ......................10 Security note ........................11 Transportation and storage ....................11 Notes on warranty ......................
  • Page 4 Table of contents Connecting ............................26 Basic safety notes ......................26 5.1.1 Not initial connection ......................26 Connecting SITRANS LT500 ....................27 5.2.1 Sensor connections ......................28 5.2.2 Wiring compartment ......................28 5.2.3 Accessing wiring compartment ..................29 5.2.4 Terminal board ........................31 5.2.5 Cables ..........................
  • Page 5 Table of contents Technical specifications ........................95 Power ..........................95 Performance ........................96 User Interfaces ........................96 Outputs ..........................97 Inputs ..........................98 Construction ........................99 Operating conditions ......................99 Communication ....................... 100 Approvals ........................102 Product documentation and support ....................103 Product documentation ....................

  • Page 6: Getting Started

    Getting started Use this chapter as a quick reference. It provides links to the steps required for startup. Before you begin, read the following safety information: • General safety information (Page 12) • Basic safety information: Installing/mounting (Page 15) • Basic safety information: Connecting (Page 26) •...

  • Page 7: Introduction

    Introduction Purpose of this documentation These instructions are a brief summary of important features, functions and safety information, and contain all information required for safe use of the device. Read the instructions carefully prior to installation and commissioning. In order to use the device correctly, first review its principle of operation.
  • Page 8 Introduction 2.3 Product compatibility Modbus RTU Manual Remarks Device revision Compatible version of device integration package edition 10/2021 New device Modbus RTU Not applicable Not applicable features FW: 1.02.00 HW: 1.00.00 Device revision 1 or later 10/2020 First edition Modbus RTU Not applicable Not applicable FW: 1.01.00...
  • Page 9 Introduction 2.3 Product compatibility PROFIBUS DP Manual Remarks Device revision Compatible version of device integration package edition 10/2021 New device PROFIBUS DP Not applicable Not applicable features FW: 1.02.00 HW: 1.00.00 Device revision 1 or later GSD: si0281df.gsd 10/2020 First edition PROFIBUS DP Not applicable Not applicable...

  • Page 10: Checking The Consignment

    Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to...

  • Page 11: Security Note

    The sales contract contains all obligations on the part of Siemens as well as the complete and solely applicable warranty conditions. Any statements regarding device versions described in the manual do not create new warranties or modify the existing warranty.

  • Page 12: Safety Notes

    Safety notes Preconditions for use This device left the factory in good working condition. In order to maintain this status and to ensure safe operation of the device, observe these instructions and all the specifications relevant to safety. Observe the information and symbols on the device. Do not remove any information or symbols from the device.

  • Page 13: Conformity With European Directives

    Safety notes 3.1 Preconditions for use 3.1.3 Conformity with European directives The CE marking on the device symbolizes the conformity with the following European directives: Electromagnetic compatibil- Directive of the European Parliament and of the Council on the ity EMC harmonisation of the laws of the Member States relating to 2014/30/EU electromagnetic compatibility...

  • Page 14: Requirements For Special Applications

    If you need additional information not covered by these instructions, contact your local Siemens office or company representative. Note Operation under special ambient conditions...

  • Page 15: Installing/Mounting

    Installing/mounting Basic safety notes WARNING Improper installation Risk to personnel, system and environment can result from improper installation. • Installation shall only be performed by qualified personnel and in accordance with local governing regulations. 4.1.1 Installation location requirements NOTICE Direct sunlight Damage to device.

  • Page 16: Proper Mounting

    Installing/mounting 4.2 Installing/mounting the device 4.1.2 Proper mounting NOTICE Incorrect mounting The device can be damaged, destroyed, or its functionality impaired through improper mounting. • Before installing ensure there is no visible damage to the device. • Make sure that process connectors are clean, and suitable gaskets and glands are used. •...

  • Page 17: Enclosure Dimensions

    Installing/mounting 4.2 Installing/mounting the device Things to avoid • Exposure to direct sunlight. (Provide a sun shield to avoid direct sunlight.) • Proximity to high voltage/current runs, contactors, SCR or variable frequency motor speed controllers. Note Improper device support Regardless of the mounting surface used, it must be able to support four times the weight of the device or damage to the device may occur.

  • Page 18: Drilling Cable Entry Holes

    Installing/mounting 4.2 Installing/mounting the device 4.2.2 Drilling cable entry holes Cable entry holes can be ordered pre-drilled, or they can be drilled by the customer per the following procedure. Condition • The following have been reviewed: Basic safety notes (Page 15), and General installation notes (Page 16).

  • Page 19: Wall Mounting

    Installing/mounting 4.2 Installing/mounting the device Dimensions in mm (inch) 4.2.3 Wall mounting Condition • The following have been reviewed: Basic safety notes (Page 15), and General installation notes (Page 16). • The correct number of cable entry holes (for this installation) are available; device was ordered with pre-drilled cable entry holes, or customer has completed procedure Drilling cable entry holes (Page 18).
  • Page 20 Installing/mounting 4.2 Installing/mounting the device Procedure 1. Unscrew the lid (six screws) and open it to reveal the mounting holes. 2. Mark and drill four holes in the mounting surface for the four screws (customer supplied). ① Mounting screw holes 3.

  • Page 21: Panel Mounting

    Installing/mounting 4.2 Installing/mounting the device 4.2.4 Panel mounting Panel mount dimensions Dimensions in mm (inch) SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...
  • Page 22 Installing the panel mount device requires making a cutout in the panel. The dimensions for the cutout are provided in the illustration below. A full size cutout template is provided with your device or may be downloaded from Industry Online Support (https://support.industry.siemens.com/cs/ww/en/sc/2067). Dimensions in mm (inch) ①...

  • Page 23: Installing The Communication Card

    Installing/mounting 4.3 Installing the communication card Procedure 1. Select a place for the device and fasten the template onto the panel (use tape or tacks). 2. Drill the four fastener holes. 3. Make the cutout using the appropriate tools. 4. Place the device into the panel and insert hexagonal fasteners through bevel slots and pre- drilled panel holes.

  • Page 24: Installing The Memory Card

    Installing/mounting 4.4 Installing the memory card Installing the memory card Memory card is generally pre-installed. If unit does not have one, follow these steps to install the card: Procedure CAUTION Electrostatic discharge (ESD) Some components in the device (such as communication cards, or memory cards) are sensitive to electrostatic discharge and could be damaged.

  • Page 25: Disassembly

    Installing/mounting 4.5 Disassembly Disassembly WARNING Incorrect disassembly Injury through electric shock may result from incorrect disassembly. In order to disassemble correctly, observe the following: • Before starting work, make sure that you have switched off all physical variables such as pressure, temperature, electricity etc.

  • Page 26: Connecting

    Connecting Basic safety notes WARNING Missing PE/ground connection Risk of electric shock. Depending on the device version, connect the power supply as follows: • Power plug: Ensure that the used socket has a PE/ground conductor connection. Check that the PE/ground conductor connection of the socket and power plug match each other.

  • Page 27: Connecting Sitrans Lt500

    Connecting 5.2 Connecting SITRANS LT500 Connecting SITRANS LT500 ① Remote sensor(s) ⑤ Communication card ② Customer alarm, pump, or control ⑥ Display, chart recorder, or other control de- device vice ③ Customer device, digital output ⑦ Computer running SIMATIC PDM, or FDT. ④...

  • Page 28: Sensor Connections

    Connecting 5.2 Connecting SITRANS LT500 5.2.1 Sensor connections ① To sensor (measurement point 1) Note that for SITRANS LR110, or SITRANS LR120 connection: positive = black wire negative = white wire 5.2.2 Wiring compartment Terminal strips can be removed to improve ease of wiring. Separate cables and conduits may be required to conform to standard instrumentation wiring practices or electrical codes.

  • Page 29: Accessing Wiring Compartment

    Connecting 5.2 Connecting SITRANS LT500 5.2.3 Accessing wiring compartment Procedure 1. Loosen six screws on lid. 2. Lift lid up and to the left on its hinges. 3. The lid can remain open connected by hinges to access wiring compartment. 4.
  • Page 30 Connecting 5.2 Connecting SITRANS LT500 ① Power supply (AC or DC) ⑤ Service port ② Diagnostic LEDs ⑥ Accessory port ③ Communication card (optional) ⑦ Display connector ④ Female connector for optional communication card (2) ⑧ Memory card holder SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...

  • Page 31: Terminal Board

    Connecting 5.2 Connecting SITRANS LT500 5.2.4 Terminal board Note Recommended torque on terminal clamping screws • 0.56 to 0.79 Nm (5 to 7 lb/inch) Do not overtighten. 5.2.5 Cables Connection Cable type Sensors, mA outputs, Input bias, Copper conductors, twisted, with shield /drain wire, 300 VAC Digital inputs, Communication 0.324 ...

  • Page 32: Remote Sensors

    Connecting 5.2 Connecting SITRANS LT500 5.2.6 Remote sensors Up to two sensors (supported sensor, or generic mA sensor) can be connected. 5.2.7 Relays Relay contacts are shown in the de-energized state. All relays are handled identically and can be configured as positive or negative logic using parameter Polarity 2.4.6.13. (per relay). Relay ratings •...

  • Page 33: Ma Output

    Connecting 5.2 Connecting SITRANS LT500 5.2.8 mA output For more information on auxiliary mA outputs, see the complete operating instructions, and consult current output parameters in menu Inputs and outputs (2.4). 5.2.9 Digital inputs The device has a 24 V power bias (terminal 28) for use with the digital inputs, or the digital inputs can be wired using external power.
  • Page 34 Connecting 5.2 Connecting SITRANS LT500 Digital inputs used with internal bias supply Note Proper connection for use with internal bias supply Terminals 23 and 31 must be connected together. Digital inputs used with external bias supply SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...

  • Page 35: Power

    Connecting 5.2 Connecting SITRANS LT500 5.2.10 Power WARNING Improper power connection Risk to personnel, system and environment can result from improper power connection. • Before applying power to the device for the first time, ensure any connected alarm/control equipment is disabled until satisfactory system operation and performance is verified.

  • Page 36: Communication

    Connecting 5.2 Connecting SITRANS LT500 5.2.11 Communication 5.2.11.1 Communication fieldbus Connect, based on protocols that follow. For a list of supported protocols see Communication (Page 100). 5.2.11.2 HART Active Passive For Active HART connection (using LT500 integral power supply), connect terminals 33 and For Passive HART connection (using external power supply), connect terminals 34 and 35.
  • Page 37 The nominal value for the HART resistor is 250 Ohm. For more information see application guide "Working with HART", which can be downloaded from the product page of our website. Go to: Product page (www.siemens.com/sitransLT500) then under Support, click Application Guides.

  • Page 38: Modbus Rtu

    Connecting 5.2 Connecting SITRANS LT500 5.2.11.3 Modbus RTU EIA-RS485 point-to-point connection to Modbus RTU master ① Termination resistors ② Modbus RTU master SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...

  • Page 39: Termination Resistors

    Connecting 5.2 Connecting SITRANS LT500 EIA-RS485 multidrop connection to a Modbus RTU master ① Termination resistors ② Modbus RTU master Note Termination resistors Termination resistors are typically 120R, however check the EIA-RS485 guidelines for more information. Note Cable type Use cable type Belden 9841 or equivalent. SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...

  • Page 40: Profibus Pa/Dp

    Connecting 5.2 Connecting SITRANS LT500 5.2.11.4 PROFIBUS PA/DP ① Termination for Profibus DP (dip switches on Profibus DP card only, normally set in OFF posi- tion as shown here) Termination for Profibus PA to be provided externally. Profibus PA connections Profibus DP connections Note Cable requirements...

  • Page 41: Commissioning

    Commissioning Basic safety notes DANGER Toxic gases and liquids Danger of poisoning when venting the device: if toxic process media are measured, toxic gases and liquids can be released. • Before venting ensure that there are no toxic gases or liquids in the device, or take the appropriate safety measures.

  • Page 42: Local Operation

    Commissioning 6.3 Local operation Local operation The device is built for easy operation, making it possible to be commissioned quickly. Its parameters are menu-driven and can be modified through local operation, using the display and buttons, also known as the Human Machine Interface (HMI). ①...

  • Page 43: Device Startup

    The next HMI view will be the operation view 1. For any subsequent startup, after power-on, the device automatically starts in operation view. A transition screen showing first the Siemens logo and then the current firmware revision of the product is displayed while the first measurement is being processed.

  • Page 44: Local Commissioning

    Commissioning 6.5 Local commissioning Local commissioning 6.5.1 Wizard order Procedure The quick start wizards provide an easy step-by-step procedure to help configure the device for various applications. We recommend that configuration is done in the following order: 1. First, run the appropriate "Quick commissioning" wizard for your application (Level, Space, Distance, Volume, Volume flow).

  • Page 45: Wizards

    Commissioning 6.5 Local commissioning 6.5.2 Wizards 6.5.2.1 Wizard overview Note Important information regarding the use of commissioning wizard • A reset to defaults should be performed before running "Quick commissioning" wizard if the device has been used in a previous application. •...
  • Page 46 Commissioning 6.5 Local commissioning ① Step name/Parameter name, e.g. "Units" ② Wizard name, e.g. "Quick commissioning" ③ View number/Total views in wizard, e.g. 4th view of 13 A wizard provides an easy step-by-step procedure to guide you through a quick setup of various parameters.
  • Page 47 Commissioning 6.5 Local commissioning Use the buttons to highlight the desired HMI wizard and press the button to enter the wizard. The first view in each wizard (About) is a description of which settings/actions can be performed using the specific wizard. The last view in each wizard (Apply?) allows user to apply selected settings.
  • Page 48 Commissioning 6.5 Local commissioning A successfully completed pump control, basic control or alarms wizard does not set any views, or other parameters, external to the wizard. Note Damping via commissioning wizard vs menu parameters Upon successful completion of the wizard: •...

  • Page 49: Quick Commissioning

    Commissioning 6.5 Local commissioning 6.5.2.2 Quick commissioning Quick commissioning wizards via HMI Procedure Quick commissioning wizard The SITRANS LT500 provides several quick commissioning wizards that can be used for various applications. The initial wizard steps are common for all application types. Subsequent wizard parameters will vary depending on the application you choose.
  • Page 50 Commissioning 6.5 Local commissioning For more information about commissioning a Level, Space, or Distance application, go to Quick commissioning: Level/Space/Distance (Page 52). For more information about commissioning a Volume application, go to Quick commissioning: Volume (Page 56). For more information about commissioning a Volume flow application, go to Quick commissioning: Volume flow (Page 64).
  • Page 51 Commissioning 6.5 Local commissioning Step: Select application With a dual-point device, you will be prompted to set up each point individually, otherwise set the type of measurement required for the application. This is done in the 'Select application' step. The options available are: •...
  • Page 52 Commissioning 6.5 Local commissioning Quick commissioning: Level/Space/Distance ① Distance ⑤ Lower calibration point ② Space ⑥ Far range ③ Upper calibration point ⑦ Level ④ Sensor reference point Setting Description Reference point Level Height of material Lower calibration point (process empty level) Space Upper calibration point (process full...
  • Page 53 Commissioning 6.5 Local commissioning Step: Length units Note Local units set immediately by wizard All local units are set immediately in wizard when "Units" step completed. • Units are an exception to the general rule for all other wizard settings: Settings for quick commissioning wizard are inter-related and changes apply only after "Apply?"...
  • Page 54 Commissioning 6.5 Local commissioning Step: Sensor type Sensor type Sets type of sensor connected to sensor input. Setting • SITRANS LR110 • SITRANS LR120 • SITRANS Probe LU240 • Generic (4 ... 20 mA) Default The default is set to the connected sensor, or "Generic (4 ... 20 mA)" if no sensor is connected.

  • Page 55: Response Rate

    Commissioning 6.5 Local commissioning Lower calibration point Sets distance from sensor reference point to lower calibration point: usually process empty level. Setting Sensor specific Default Upper calibration point Sets distance from sensor reference point to upper calibration point: usually process full level. Setting Sensor specific Default...
  • Page 56 Commissioning 6.5 Local commissioning Step: Apply? Apply? Applies settings as last step in wizard. Setting Wizard completes and settings are applied. Returned to start of wizard. Default Quick commissioning: Volume SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...
  • Page 57 Commissioning 6.5 Local commissioning ① Distance ⑤ Lower calibration point ② Space ⑥ Far range ③ Upper calibration point ⑦ Level ④ Sensor reference point Setting Description Reference point Volume Volume of material in Volume units Lower calibration point (based on level) Step: Units Note Local units set immediately by wizard...

  • Page 58: Volume Units

    Commissioning 6.5 Local commissioning Volume units Sets the volume units applied for local operation and the communication interface, on measurement point 1 and 2. Setting • l (liters) • bbl (42 US gallon barrels) • hl (hectoliters) • (cubic inches) •...
  • Page 59 Commissioning 6.5 Local commissioning Step: Sensor type Sensor type Sets type of sensor connected to sensor input. Setting • SITRANS LR110 • SITRANS LR120 • SITRANS Probe LU240 • Generic (4 ... 20 mA) Default The default is set to the connected sensor, or "Generic (4 ... 20 mA)" if no sensor is connected.
  • Page 60 Commissioning 6.5 Local commissioning Lower calibration point Sets distance from sensor reference point to lower calibration point: usually process empty level. Setting Sensor specific Default Upper calibration point Sets distance from sensor reference point to upper calibration point: usually process full level. Setting Sensor specific Default...
  • Page 61 Commissioning 6.5 Local commissioning Step: Volume setting Vessel shape Sets vessel shape, and allows device to calculate volume in addition to level. Display name/description Vessel shape Other parameter settings required Setting Linear vessel Maximum volume Conical bottom vessel Maximum volume, Vessel dimension A Parabolic bottom vessel Maximum volume, Vessel dimension A Half sphere bottom vessel...

  • Page 62: Maximum Volume

    Commissioning 6.5 Local commissioning Display name/description Vessel shape Other parameter settings required Maximum volume, Vessel dimension A, Vessel Parabolic ends vessel dimension L Sphere vessel Maximum volume Custom Use for custom volume applica- tion. Default Linear vessel Maximum volume ① Vessel dimension A ② Vessel dimension L Vessel dimension A Sets height of vessel bottom when bottom is conical, parabolic, half spherical, or flat sloped.
  • Page 63 Commissioning 6.5 Local commissioning Step: Apply? Apply? Applies settings as last step in wizard. Setting Wizard completes and settings are applied. Returned to start of wizard. Default SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...
  • Page 64 Commissioning 6.5 Local commissioning Quick commissioning: Volume flow SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...
  • Page 65 Commissioning 6.5 Local commissioning ① Sensor reference point ⑥ Head ② Upper calibration point ⑦ Material surface ③ Lower calibration point ⑧ Maximum head/Maximum flow ④ Zero head offset ⑨ Far range ⑤ Zero head Setting Description Reference point Volume flow Flow rate in an open channel in Volume Zero head, zero flow flow units...

  • Page 66: Volume Flow Units

    Commissioning 6.5 Local commissioning Length units Sets the length units applied for local operation and the communication interface, on measurement point 1 and 2. Setting • m (meters) • cm (centimeters) • mm (millimeters) • ft (feet) • in (inches) Default Volume flow units Sets the volume flow units applied for local operation and the communication interface, on...
  • Page 67 Commissioning 6.5 Local commissioning Setting • l/s (liters per second) • bbl/h (42 US gallon barrels per hour) • l/min (liters per minute) • bbl/d (42 US gallon barrels per day) • l/h (liters per hour) • kbbl/d (thousand 42 US gallon barrels per day) •...
  • Page 68 Commissioning 6.5 Local commissioning Volume units Sets the volume units for totalizers, applied for local operation and the communication interface. • For measurement point 1, volume units are set for totalizer 1 and 2. • For measurement point 2, volume units are set for totalizer 3 and 4. Setting •...
  • Page 69 Commissioning 6.5 Local commissioning Step: Sensor type Sensor type Sets type of sensor connected to sensor input. Setting • SITRANS LR110 • SITRANS LR120 • SITRANS Probe LU240 • Generic (4 ... 20 mA) Default The default is set to the connected sensor, or "Generic (4 ... 20 mA)" if no sensor is connected.
  • Page 70 Commissioning 6.5 Local commissioning Lower calibration point Sets distance from sensor reference point to lower calibration point: usually process empty level. Setting Sensor specific Default Upper calibration point Sets distance from sensor reference point to upper calibration point: usually process full level. Setting Sensor specific Default...
  • Page 71 Commissioning 6.5 Local commissioning Step: Primary measuring device Primary measuring device (PMD) Sets the type of primary measuring device (PMD) used. Setting • Exponential devices • Rectangular flume BS 3680/ISO 4373 • Round nose horizontal crest weir BS 3680/ISO 4373 •...
  • Page 72 Commissioning 6.5 Local commissioning Step: Flow settings (vary by PMD) Note Two parts to "Step: Flow settings" (vary by PMD) Part 1 - The dimensions (one to four), based on the selected PMD, are set. Part 2 - Other required flow settings, based on the selected PMD, are set. Only the settings required for the selected PMD are visible in the wizard on the HMI.
  • Page 73 Commissioning 6.5 Local commissioning Step: Apply? Apply? Applies settings as last step in wizard. Setting Wizard completes and settings are applied. Returned to start of wizard. Default Note Head calibration can improve accuracy It is strongly recommended that a zero head calibration be performed after completion of the wizard to ensure best accuracy.

  • Page 74: Pump Control

    Commissioning 6.5 Local commissioning 6.5.2.3 Pump control Step: About Provides step-by-step procedure to configure the control of one or more pumps. This is the first step in the wizard. SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...
  • Page 75 Commissioning 6.5 Local commissioning Step: Select measurement point Select measurement point Sets the measurement point to be configured for pump control function. This step will not appear on a single-point device. Setting • Measurement point 1 • Measurement point 2 •...

  • Page 76: Pump Control Mode

    Commissioning 6.5 Local commissioning Pump control mode Pump control mode Sets the control algorithm used to activate the relay. Setting • Alternate duty assist • Alternate duty backup • Service ratio duty assist • Service ratio duty backup • Fixed duty assist •...
  • Page 77 Commissioning 6.5 Local commissioning Pump 1 Sets relay assigned to pump. Setting • Relay output 1 • Relay output 2 • Relay output 3 • Relay output 4 • Relay output 5 • Relay output 6 Default Not applicable CAUTION Relay conflicts If relays are assigned to another application, notification is present at the start of the wizard, but assigned relays remain available here.
  • Page 78 Commissioning 6.5 Local commissioning Pump run times Note Step is repeated per pump The parameter in this step will need to be set for each pump used in the application. This step is only visible if pump control mode is set to "Service ratio duty assist" or "Service ratio duty backup".
  • Page 79 Commissioning 6.5 Local commissioning On setpoint pump 1 Sets the level at which pump turns on. Setting -99999 … 99999 Default Off setpoint pump 1 Sets the level at which pump turns off. Setting -99999 … 99999 Default Step: Apply? Apply? Applies settings as last step in wizard.

  • Page 80: Basic Control

    Commissioning 6.5 Local commissioning 6.5.2.4 Basic control Step: About Provides step-by-step procedure to configure the control of one or more relays based on a measurement. This is the first step in the wizard. Step: Select control source Select control source Sets the control source to be configured for a basic control application.

  • Page 81: Control Relays

    Commissioning 6.5 Local commissioning Step: Relays currently assigned Relays currently assigned Displays any relays that are currently configured for other applications, as a reference of relay availability for the basic control function. This step does not appear if no relays are configured for other applications. Step: Control relays Control relays Enables selected relays for basic control function.
  • Page 82 Commissioning 6.5 Local commissioning Step: Apply? Apply? Applies settings as last step in wizard. Setting Wizard completes and settings are applied. Returned to start of wizard. Default SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...

  • Page 83: Alarms

    Commissioning 6.5 Local commissioning 6.5.2.5 Alarms Step: About Provides step-by-step procedure to configure alarms. This is the first step in the wizard. SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...

  • Page 84: Alarm Sources

    Commissioning 6.5 Local commissioning Step: Select measurement point Select measurement point Sets the measurement point to be configured for alarms. This step will not appear on a single-point device. Setting • Measurement point 1 • Measurement point 2 • Exit Default Measurement point 1 Step: Alarm sources...
  • Page 85 Commissioning 6.5 Local commissioning Select the setting "Sensor diagnostics" to configure alarms based on a pre-defined list of diagnostics: Measurement point 1 Measurement point 2 Sensor diagnostic message Diagnostic ID Diagnostic ID Sensor not found. Sensor not supported. Loss of echo. Sensor hardware failure (digital).
  • Page 86 Commissioning 6.5 Local commissioning Measurement point 1 Measurement point 2 Setting [ ] 320 Level (point 1) above alarm limit [ ] 340 Level (point 1) above alarm limit [ ] 321 Level (point 1) above warning limit [ ] 341 Level (point 1) above warning limit [ ] 322 Level (point 1) below warning limit [ ] 342 Level (point 1) below warning limit [ ] 323 Level (point 1) below alarm limit...
  • Page 87 Commissioning 6.5 Local commissioning Level limits Upper alarm limit Sets the upper alarm limit. A diagnostic is generated if the process value exceeds this limit. Setting -99999 … 99999 Default 6.0 m Lower alarm limit Sets the lower alarm limit. A diagnostic is generated if the process value falls below this limit. Setting -99999 …...
  • Page 88 Commissioning 6.5 Local commissioning Step: Configure relays? Configure relays? Allows user to configure relays if required for application. Select "Yes" to assign a relay output to the alarm. Select "No" to configure alarms only for the local display, communication interface, and diagnostic log. Setting Continue to next step to configure relays.

  • Page 89: Alarm Relays

    Commissioning 6.5 Local commissioning Step: Alarm relays Alarm relays Enables selected relays for alarms. Setting [ ] Relay output 1 [ ] Relay output 2 [ ] Relay output 3 [ ] Relay output 4 [ ] Relay output 5 [ ] Relay output 6 Default [X] indicates enabled by default *...
  • Page 90 Commissioning 6.5 Local commissioning Step: Apply? Apply? Applies settings as last step in wizard. Setting Wizard completes and settings are applied. Returned to start of wizard. Default SITRANS LT500 with mA/HART sensor inputs Compact Operating Instructions, 05/2022, A5E52003504-AA...

  • Page 91: Service And Maintenance

    Service and maintenance Basic safety notes The device is maintenance-free. However, a periodic inspection according to pertinent directives and regulations must be carried out. An inspection can include, for example, check of: • Ambient conditions • Seal integrity of the process connections, cable entries, and cover •...

  • Page 92: Maintenance And Repair Work

    Maintenance and repair work WARNING Impermissible repair of the device • Repair must be carried out by Siemens authorized personnel only. CAUTION Hazardous voltage at open device Risk of electric shock when the enclosure is opened or enclosure parts are removed.

  • Page 93: Firmware Update

    A device restart will occur during the firmware update process. 1. Download the latest available firmware bundle from Product page (www.siemens.com/sitransLT500). 2. Save the firmware bundle to the memory card. 3. Log in to the device with access level "Expert". (See Access control in the operating chapter of the full operating instructions).

  • Page 94: Return Procedure

    To return a product to Siemens, see Returns to Siemens (www.siemens.com/returns-to- siemens). Contact your Siemens representative to clarify if a product is repairable, and how to return it. They can also help with quick repair processing, a repair cost estimate, or a repair report/cause of failure report.

  • Page 95: Technical Specifications

    Technical specifications Note Device specifications Siemens makes every attempt to ensure the accuracy of these specifications but reserves the right to change them at any time. CAUTION Impaired protection The device is to be used only in the manner outlined in this instruction manual or protection provided by the equipment may be impaired.

  • Page 96: Performance

    Technical specifications 8.2 Performance Performance Measurement rate • 1/second Remote sensor polling rate • HART sensor mode: 1 Hz (Supported sensor) • Analog sensor mode: > 1 Hz (Generic mA sensor) Memory • Capacity: 8 GB (micro SD card shipped with device) •...

  • Page 97: Outputs

    Technical specifications 8.4 Outputs Outputs mA analog active output • Single-point version includes one mA output • 0 to 20 mA • Dual-point version includes two mA outputs • 4 to 20 mA • Accuracy ± 20 uA, over 3.5 to 22.6 mA –...

  • Page 98: Inputs

    Technical specifications 8.5 Inputs Inputs Remote sensor Terminal voltage: • Maximum 26 V, Minimum 18 V (0 ... 22.6 mA) • Single-point version includes one input • Dual-point version includes two inputs Wiring: 2 conductor, twisted, shielded, 0.5 ... 0.75 mm (22 ...

  • Page 99: Construction

    Technical specifications 8.6 Construction Construction Enclosure • Wall mount • 240 mm (9.5 inch) x 175 mm (6.9 inch). Width dimension includes hinges. • Type 4X/NEMA 4X/IP65 • Polycarbonate • Panel mount • 278 mm (10.93 inch) x 198 mm (7.8 inch), width dimension in- cludes flange.

  • Page 100: Communication

    PROFINET For a complete list of available communication cards, see latest catalog information at Product page (www.siemens.com/sitransLT500). Under severe EMI/EMC environments per IEC 61326-1, the accuracy on the HART Fieldbus mA output may decrease to a maximum of ± 250uA.
  • Page 101 Technical specifications 8.8 Communication Modbus RTU Version: V1.1B3 Physical layer EIA-RS485 (2 wire half duplex) Connections See Modbus RTU (Page 38) Termination External 120R resistor across Fieldbus connections 35 and 36 Application General purpose Device address Set by Modbus or HMI range from 1 to 247 Data rate 1.2 Kbps 2.4 Kbps...

  • Page 102: Approvals

    Technical specifications 8.9 Approvals PROFIBUS DP Version: Profile for Process Control Devices 4.01 Physical layer EIA-RS485 (2 wire half duplex) Connections See PROFIBUS PA/DP (Page 40) Termination All DIP switches 'On' to enable internal terminations Application General purpose Device address 0 to 126 (Set via communication or HMI) Data rate 9.6 Kbps...

  • Page 103: Product Documentation And Support

    Entering a serial number 1. Open the PIA Life Cycle Portal (https://www.pia-portal.automation.siemens.com). 2. Select the desired language. 3. Enter the serial number of your device. The product documentation relevant for your device is displayed and can be downloaded.

  • Page 104: Technical Support

    In addition to our technical support, Siemens offers comprehensive online services at Service & Support (http://www.siemens.com/automation/service&support). Contact If you have further questions about the device, contact your local Siemens representative at Personal Contact (http://www.automation.siemens.com/partner). To find the contact for your product, go to "all products and branches" and select "Products &...

  • Page 105: Index

    Index Alarms Enclosure. See also dimensions, mounting, 99 relays, technical data, 97 Approvals specifications, 102 HMI (Human Machine Interface), 42 technical data, 99 Hotline, (Refer to Support request) Cables, 31 cable entry, 17 cable gland, 20, 23 connecting, 27 Inputs entry location, 17 technical data, 98 technical data, 99...
  • Page 106 Index Power specification, 95 Wall mount mounting on wall, 20 Warranty, 11 Weight, 99 Quick start wizards Wiring local commissioning, 42 compartment, 30 insulation, 15 Relays contacts and connection, 32 local commissioning, 42 Return procedure, 94 Scope of delivery, 10 Sensor reference point, 52, 57 Service, 104 Service and support...

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Sitrans lt500

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