Summary of Contents for Weidmüller WL-TX
- Page 1 WL-TX/RX-900 Wireless I/O Modules Installation Manual Weidmuller Australia Pty Ltd 43 Huntingwood Drive, 2148 Huntingwood, NSW Tel: +61 2 9671 9999 Fax: +61 2 9671 9900 Version 1.00 March 2009...
- Page 2 All products mentioned herein may be trademarks or registered trademarks of their respective owners. Weidmüller® is a registered trademark of Weidmüller Interface GmbH & Co. KG User Manual: Handbuch Weidmuller Australia Pty Ltd WL-TX/RX-900 Date: Wiedmuller WL-TXRX-900 Wireless IO.doc 26.03.2009 Revision:...
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Page 3: Table Of Contents
Page Safety Notes Indented safety notes General Warnings Liability Use as Prescribed Industrial applications Range of application Caution Introduction Overview WL-TX-900 Transmitter features 1.2.1 Overview 1.2.2 Front panel 1.2.2.1 Rotary Switches 1.2.2.2 LED Status Indicators 1.2.3 Power Saving Features WL-RX-900 Receiver features 1.3.1... - Page 4 2.3.6 Analog output 2.3.6.1 Analogue Output Connections Factory Default configuration Overview Default signal mappings 3.2.1 Resetting WL-TX-900 to factory defaults 3.2.2 Resetting WL-RX-900 to factory defaults 3.2.3 Linking a transmitter and receiver unit Configuration software Overview 4.1.1 Configuration cable information 4.1.2...
- Page 5 4.5.4 Pulsed Inputs 4.5.5 Setpoints 4.5.6 Thermocouples 4.5.6.1 Creating user-defined thermocouple tables 4.5.7 Unit Details 4.5.7.1 Overview 4.5.7.2 Unit Detail Options Troubleshooting Bench Testing Diagnostic Software 5.2.1 WL-RX-900 Radio Diagnostics 5.2.2 WL-TX-900 Input Status Appendix A: Analog signal tables References...
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Page 6: Safety Notes
Safety Notes Safety Notes Indented safety notes In this Instruction Manual, safety notes are marked with a symbol and the keyword CAUTION or NOTE at the page margin. Safety notes are printed in bold letters and are marked with an outside border. Definitions The keyword DANGER is used to warn you of a possibly hazardous situation. -
Page 7: General Warnings
Only sufficiently qualified and trained personnel should be allowed to operate, DANGER service and maintain the WL-TX/RX-900 modules. WL-TX/RX-900 modules must only be installed by a qualified electrician. Before performing service or maintenance work, always switch off the power supply first! Reinstall all panelling, protective covering and safety devices immediately after completion of service and maintenance work and check their functioning. -
Page 8: Use As Prescribed
RS232 RJ-45 serial port on the front of the unit. Caution Do not use WL-TX/RX-900 modules near electrical blasting caps or in potentially explosive areas! DANGER Antennas used with this device must be installed to provide a separation distance of at least 20 cm from all persons to satisfy RF exposure compliance. -
Page 9: Introduction
Introduction Introduction Overview WL-TX/RX-900 modules provide an economical method to transfer industrial signals over long distances (using radio signals in the license free band). They can be used for Analogue current/voltage and Digital signals. Transmission is one-way (from Transmitter to Receiver). -
Page 10: Wl-Tx-900 Transmitter Features
The digital inputs can accept status (on/off) signals (like level switches) or monitor pulsed signals (like the output from a flow meter). The WL-TX-900 sets the digital status outputs according to the Alarm Status and the (combined) System/Communications Status. 1.2.2 Front panel The front panel contains the following components: 1.2.2.1... -
Page 11: Led Status Indicators
1.2.3 Power Saving Features The WL-TX-900 can control the 24Vdc power output for loop-powered input device to save power in battery operated systems. It has a programmable timer so that the device can warm up after power is restored and you can program the time between... -
Page 12: Wl-Rx-900 Receiver Features
Introduction WL-RX-900 Receiver features 1.3.1 Overview The WL-RX-900 Receiver modules have: Three contact closure outputs rated at 1A, 240Vac One 0-20mA analogue output Two digital status outputs You can wire the digital status outputs to activate an alarm if the software finds an error or if the communications link fails. -
Page 13: Mappings
Unit address - Sets the unique address for a WL-TX/RX-900 module on a network. Select a number between 1 and 95. ... -
Page 14: Installation
2.1.1 Overview This section explains how to select and install your antenna. You must select antennas for WL-TX-900 modules to avoid contravening the maximum power output limit on the unlicensed channel. The net gain of the antenna/cable configuration should be no more than 0 dB in Australia / New Zealand. -
Page 15: Supported Antennas
2.1.2 Supported antennas You can use the following antennas with the units: Antenna Description Total Compatible cable gain (WL-TX-900 only) Wl-WH900-SMA Whip antenna for mounting -6 dBi directly onto the module - operation up to 1 km. WL-CFD890EL 0 dBi Dipole antenna with 15’ of 0 dBi Cellfoil cable and SMA connector. -
Page 16: Installing And Earthing Antennas
Installation 2.1.4 Installing and earthing antennas You must connect an antenna to each module using the SMA connector at the top of the housing. Weidmuller recommends carefully taping the connections between the antenna and coaxial cable to prevent moisture ingress. Moisture ingress in the coaxial cable is a common cause of radio system problems as it greatly increases the radio losses. -
Page 17: Dipole Antennas
You can use collinear antennas to Compensate for the losses in long lengths of coaxial cable in WL-TX-900 Transmitters. ... -
Page 18: Yagi Antennas
Installation 2.1.7 Yagi antennas Yagi antennas are directional and have positive gain to the front of the antenna and negative gain in other directions. You can use the gain to: Compensate for coaxial cable loss for transmitter unit; and ... -
Page 19: Power Supply
Installation Power supply The unit works with a 9-30 Vdc 0.6 Amp power supply. The following table shows the power supply requirements. Power supply WL-TX-900 WL-RX-900 600 mA 250 mA 300 mA 125 mA The power supply can be either floating or negatively grounded. -
Page 20: Inputs And Outputs
Installation Inputs and outputs The units have the following inputs and outputs: Input/output WL-TX-900 WL-RX-900 Description Digital inputs Suitable for Voltage free contact, NPN transistor, 0-5V signal. Relay outputs 250VAC 1A / 30VDC 1A. Status outputs Max 30VDC, 500 mA. Indicate module status, communication failure and local setpoint status. -
Page 21: Digital/Pulse Inputs
Each digital input circuit includes a LED indicator that lights when the digital input is active (i.e. when the input circuit is closed). The WL-TX-900 module lets you configure the digital inputs as pulse inputs with the following characteristics: Characteristic... -
Page 22: Relay Outputs
Installation Load Max 30VDC 1A DC relays - use flyback diodes across the external circuit to prevent arcing across the relay contacts. 2.3.2 Relay outputs The WL-RX-900 module provides three normally open voltage-free relay contacts rated at 250VAC / 30VDC 1A. You can use these outputs to directly control low-powered equipment or power larger relays for higher-powered equipment. -
Page 23: Status Outputs
(both modules) Internal fault detected. System OK inactive Supply voltage Low Analog Loop supply overloaded Setpoint Output Green Local setpoint attached to 4-20mA (WL-TX-900) analog input. Communications Failure Watchdog alarms active on digital (WL-RX-900) outputs or analog outputs. -
Page 24: Analog Input
The WL-TX-900 module provides one 0 - 20 mA analog input for connecting to instrument transducers (e.g. level, moisture, pressure transducers, etc.). The WL-TX-900 module inputs measure down to 0mA and can also be used for zero based signals (e.g. 0 - 10 mA). The analog input has a positive and negative terminal and can be placed at any point in the current loop, providing neither input rises above the 24 volt Analog Loop Supply level. -
Page 25: Analogue Input Connections
Installation 2.3.4.1 Analogue Input Connections 2 wire transducer 4 wire transducer Current source output Current sink output... -
Page 26: Thermocouple Input
Installation 2.3.5 Thermocouple input The WL-TX-900 provides one input suitable for connection to a thermocouple or a millivolt level signal. The module provides linearisation tables for J, K and T type thermocouples and also supports other types via a user linearisation table. -
Page 27: Analogue Output Connections
Installation 2.3.6.1 Analogue Output Connections The following diagrams illustrate different connection methods: Loop powered device Floating input device To single- ended input device... -
Page 28: Factory Default Configuration
It requires a PC running the WL Series configuration software provided and a special cable to connect to the units. The default configuration links one WL-TX-900 and WL-RX-900 pair together. The following table details the factory default configuration. -
Page 29: Resetting Wl-Tx-900 To Factory Defaults
1. Set the rotary switch to position 0 using a screwdriver. 2. Power on the WL-TX-900 transmitter. 3. The WL-TX-900 transmitter flashes all LEDs at medium flash (i.e. 1.6 Hz). If the LEDs do not flash, you must repeat steps 1 and 2 until the LEDs flash before continuing. -
Page 30: Linking A Transmitter And Receiver Unit
Factory Default configuration 3.2.3 Linking a transmitter and receiver unit Before you start, reset the transmitter unit to factory defaults (to disable encryption). See above for instructions. You must complete the linking process in 60 seconds. To link the transmitter and receiver units: 1. -
Page 31: Configuration Software
Configuration software Configuration software Overview The configuration software allows you to group units into a project, configure mappings between units in a project and store project information on disk. You will need a cable to join a spare RS232 port on your PC to the RJ-45 connector and you will need to install the WL Series Configuration Software on you PC. -
Page 32: Configuration Cable Information
Configuration software 4.1.1 Configuration cable information Connect the module RJ-45 connector to an RS 232 serial port on your PC using a serial cable with the connections shown below. These cables are available from Weidmuller (Part Number: WL-SER-RJ45; Cat No: 7940033958). RJ-45 Required Signal name... -
Page 33: Installing/Starting The Software
Configuration software 4.1.2 Installing/starting the software To install the WL Series Configuration Software: 1. Insert the CD. 2. Run setup.exe. 3. The installation wizard will guide you through the installation process. To start the software select Start » All Programs » Weidmuller series » WL Series » WL Series Setup Working with projects 4.2.1 Overview WL Series Configuration Software lets you create a “project”... -
Page 34: Project Options
Configuration software 4.2.2 Project options Field Description Project Lets you set a name to uniquely identify the project. name Project Lets you set the location on your PC where WL Series Configuration location Software will store the project. Project Lets you set or remove a password to help protect the configuration file password against unauthorized changes. -
Page 35: Working With Units
To delete a unit, select the unit name in the tree view and press the <Delete Unit> button in the right hand side panel. To duplicate a WL-RX-900 module: select the unit in the tree view; right click; and select Copy Unit from the shortcut menu. This will not work for WL-TX-900 modules. -
Page 36: Wl-Rx-900 Setup
Configuration software WL-RX-900 Setup 4.4.1 Overview The main setup screen for the WL-RX-900 is shown below. As you can see the main options are limited to changing the Unit name (see ‘Adding a unit’ above) and the unit address (1-127). For a printable summary of the unit’s setup, press <Unit Summary>. -
Page 37: Output Reset Times
Configuration software 4.4.2 Output Reset Times You can configure each output to reset to a safe state if they do not receive an update message within a certain time (Output Reset Time). The safe state is 0mA for an analogue output or ‘off’ for a digital output. Setting the output reset time to zero disables this feature (so the WL-RX-900 will retain the current output value indefinitely if no messages are received). -
Page 38: Wl-Tx-900 Setup
WL-TX-900 Setup 4.5.1 Overview The main setup screen for the WL-TX-900 is shown below. As you can see the main options are limited to changing the Unit name (see ‘Adding a unit’ above); the unit address (1-127) and the unit Secondary Address. -
Page 39: Mappings
Configuration software 4.5.2 Mappings Mappings let you connect signals from the WL-TX-900 module to a specific WL-RX- 900 module output. You can map the same input to several output modules. Mappings can be triggered on a change of state (event reporting) and on a timed basis (periodic update). -
Page 40: Mapping Configuration Screen
To invert an input, select the input in the From Inputs box. Press Ctrl+I or right click on the input and select Invert from the list. Do not invert pulsed inputs. The WL-TX-900 will send the information about the inputs in a message to this module when the mapping is triggered. -
Page 41: Advanced Mapping Options
Delay Before Tx period in the message that is sent. Update If a “change” does occur not in the Update Time, the WL-TX-900 triggers Time the mapping and transmits the message. This is known as an “Update message”. -
Page 42: Sensitivities
Configuration software 4.5.3 Sensitivities Unit sensitivities indicate the change required in an analogue input for the module to detect a state change and transmit a new value. If you set the sensitivity to a small value, the mappings using the input will trigger on a small change of value. -
Page 43: Setpoints
Configuration software 4.5.5 Setpoints Lets you generate a digital on/off value from the value of an analog signal. All setpoints operate as ‘Low’ alarms. Low alarms have two setpoint values - a high threshold value and a low threshold value. When the analog level moves below the low value, the setpoint status turns on. It will only reset if the high value is exceeded. -
Page 44: Thermocouples
Configuration software 4.5.6 Thermocouples Thermocouple tables let you measure millivolt signals (-100 to 100 mV) and thermocouple signals with cold junction compensation. WL Series Configuration Software supports the following thermocouple linearisation tables: Millivolt Inputs (No linearisation); E, J, K, T tables; or ... -
Page 45: Creating User-Defined Thermocouple Tables
Configuration software 4.5.6.1 Creating user-defined thermocouple tables WL Series Configuration Software lets you create your own customised thermocouple tables. You may want to create your own thermocouple tables if the: Configuration software does not support the type of thermocouple you want to use;... -
Page 46: Unit Details
4.5.7.1 Overview The unit details options allow you to fine tune the operation of the WL-TX-900. The WL-TX-900 only turns on the analog circuits and the +24V analog loop power supply when they are actually required. You can reduce the module power consumption by limiting the amount of time the analog circuitry and the +24V analog loop supply is enabled. - Page 47 Configuration software Feature Description Unit temp The time between samples of the internal temperature sensor. sample period The module temperature (Cold junction temperature) is sampled every time the thermocouple input is sampled. You will only need to set this field if you want to sample the temperature more often than you sample the thermocouple, including when you are not using a thermocouple.
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Page 48: Troubleshooting
Troubleshooting Troubleshooting Bench Testing We recommend you bench test the complete system before installing a new system. Configuration problems are easier to identify and fix when the units are next to each other. The following table describes some common problems and recommended solutions: If your installation has …... -
Page 49: Diagnostic Software
Troubleshooting Diagnostic Software 5.2.1 WL-RX-900 Radio Diagnostics WL-RX-900 modules have a diagnostic tool that lets you monitor radio communications to help you troubleshoot problems with your unit. To monitor radio communications on a WL-RX-900 series module 1. Open the WL Series Configuration software with your PC connected to the module via the serial link. -
Page 50: Wl-Tx-900 Input Status
Troubleshooting 5.2.2 WL-TX-900 Input Status To check the status of inputs on a WL-TX-900: 1. Navigate to the Unit page for the unit you want to check. 2. Click the <Read Inputs> buttons. 3. WL Series Configuration Software shows a page indicating the status of all inputs to the module. -
Page 51: Appendix A: Analog Signal Tables
Appendix A: Analog signal tables Appendix A: Analog signal tables Thermocouple °C Supply value voltage Temp 2048 4096 6144 8192 10240 12288 -12.5 14336 -6.25 16384 -40°C 0.00 0.00 -200.00 -200.00 -200.00 -200.00 18432 -30°C 6.25 6.25 -125.00 -112.50 -101.75 -162.50 20480 -20°C... -
Page 52: References
2148 Suburb: Huntingwood, NSW Tel: +61 2 9671 9999 Fax: +61 2 9671 9900 Version: Version 1.00 March 2009 Software-Version: 1.00 to 1.09 Model: WL-TX/RX-900 Description: Wireless I/O Modules Document Type: Installation Manual User: user Password: user WebSite: www.weidmuller.com.au Warenzeichen1: Ethernet®...
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