USER'S GUIDE Vaisala Serial Wind Transmitter WAC155 M210822EN-A
PUBLISHED BY Vaisala Oyj Phone (int.): +358 9 8949 1 P.O. Box 26 Fax: +358 9 8949 2227 FIN-00421 Helsinki Finland Visit our Internet pages at http://www.vaisala.com/ © Vaisala 2007 No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder. The contents are subject to change without prior notice.
________________________________________________________________________________ Table of Contents CHAPTER 1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Contents of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 General Safety Considerations . . . . . . . . . . . . . . . . . . . . . . 8 Feedback . . . . . . . . . . . . . . . . . . . . . . . . . .
________________________________________________________________________________ OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 CLOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 SETDEV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 SETSPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 SETDIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
________________________________________________________________________________ List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Vaisala Serial Wind Transmitter WAC155 . . . . . . . . . . . . . . . . 12 Recommended Mast Location in Open Area . . . . . . . . . . . . . . 14 Recommended Mast Length on Top of a Building . . . . . . . . . . 15 RS-485 Termination .
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________________________________________________________________________________ List of Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Anemometer Connector (X1) Pinout . . . . . . . . . . . . . . . . . . . . . . 18 Power/Control Connector (X2) Pinout . . . . . . . . . . . . . . . . . . . . . 19 Wind Direction Sensor Connector (X3) Pinout. . . . . . . . . . . . . . . 19 WAC155 Default Serial Communication Settings . . . . . . . .
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Chapter 1 ________________________________________________________ General Information CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and the product. About This Manual This manual provides information for installing and maintaining the Vaisala Serial Wind Transmitter WAC155. Contents of This Manual This manual consists of the following chapters: - Chapter 1, General Information: This chapter provides general notes for the manual and the product.
User's Guide ______________________________________________________________________ - Chapter 6, Troubleshooting: This chapter describes common problems, their probable causes and remedies, and contact information. - Chapter 7, Technical Data: This chapter provides technical data of the Vaisala Serial Wind Transmitter WAC155. General Safety Considerations Throughout the manual, important safety considerations are highlighted as follows: WARNING Warning alerts you to a serious hazard.
Chapter 1 ________________________________________________________ General Information WARNING Ground the product, and verify outdoor installation grounding periodically to minimize shock hazard. CAUTION Do not modify the unit. Improper modification can damage the product or lead to malfunction. ESD Protection Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use.
User's Guide ______________________________________________________________________ Warranty Vaisala hereby represents and warrants all Products manufactured by Vaisala and sold hereunder to be free from defects in workmanship or material during a period of twelve (12) months from the date of delivery save for products for which a special warranty is given.
Chapter 2 __________________________________________________________ Product Overview CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the features of the Vaisala Serial Wind Transmitter WAC155. Introduction to Vaisala Serial Wind Transmitter WAC155 The Vaisala Serial Wind Transmitter WAC155 converts the digital data supplied by the Vaisala 151 and 252 Series wind sensors for use in the RS-485 bus.
User's Guide ______________________________________________________________________ The main features of the WAC155 are as follows: - Communication with NMEA 0183 compliant protocol over RS-485 electrical interface (half-duplex) - Capable of measuring the wind parameters at a configurable interval using the instant method according to the WMO standard - Fail-safe RS-485 operation with configurable baud rate and turnaround delay - Configurable RS-485 bus termination and ID setting - Service connect
Chapter 3 _______________________________________________________________ Installation CHAPTER 3 INSTALLATION This chapter provides you with information that is intended to help you install this product. Selecting Location Finding a suitable site for the product is important for getting representative ambient measurements. The site should represent the general area of interest. Allow sufficient clearance for the wind sensors.
User's Guide ______________________________________________________________________ 0204-040 Figure 2 Recommended Mast Location in Open Area In general, any object of height (h) will not remarkably disturb wind measurement at a minimum distance of 10 h. There should be at least 150 m open area in all directions from the mast. Refer to Figure 2 on page 14.
Chapter 3 _______________________________________________________________ Installation 0204-041 Figure 3 Recommended Mast Length on Top of a Building The recommended minimum length (marked with the letter h in Figure 3 on page 15) for the mast that is installed on top of a building is 1.5 times the height of the building (H). When the diagonal (W) is less than the height (H), the minimum length of the mast is 1.5 W.
User's Guide ______________________________________________________________________ 6. Attach the unit on the top of a pole mast with the mounting clamp as shown in Figure 17 on page 28. 7. Mount the sensors onto the cross arm. Refer to Figure 18 on page 29 and the sensors' manuals. 8. Align the cross arm as instructed in section Alignment on page 29 before erecting the mast. Jumper Settings RS-485 serial bus termination can be selected with the on-board jumper.
Chapter 3 _______________________________________________________________ Installation 0702-001 Figure 5 WAC155 Component Board The following numbers refer to Figure 5 on page 17. 1 = RS-485 termination jumper 2 = Status indicator LED Connections The WAC155 transmitter provides the line cable entry through a gland for a cable with a diameter from 7 to 10 mm. For better protection against RF interference, bend the cable shield as illustrated in Figure 6 on page 17.
User's Guide ______________________________________________________________________ 0702-008 Figure 7 I/O Connectors The following numbers refer to Figure 7 on page 18. X1 = Plug-in connector with screw terminals (5 pcs) for the anemometer cable. Maximum wire cross section area is 1.5 mm2. X2 = Plug-in connector with screw terminals (8 pcs) for the power and signal cable. Maximum wire cross section area is 1.5 mm2. X3 = Plug-in connector with screw terminals (11 pcs) for the wind vane cable.
Chapter 3 _______________________________________________________________ Installation Table 2 Power/Control Connector (X2) Pinout Pin # Signal Description 1 2 3 4 5 6 7 8 HT1+ HT2Vin+ Vin+ VinVinRS-485 A(-) RS-485 B(+) Heating supply-1 input Heating supply-2 input Supply voltage input Supply voltage input Ground Ground RS-485 inverting I/O RS-485 noninverting I/O Table 3 Wind Direction Sensor Connector (X3) Pinout Pin # Signal Description 1 2 3 4 5 6 7 8 9 10 11 HTC HT2 GND D+ G5 G4 G3 G2 G1
User's Guide ______________________________________________________________________ 0702-007 Figure 8 Wiring of the Sensors The following numbers refer to Figure 8 on page 20. 1 = Anemometer cable 2 = Glands for power and signal cables 3 = Wind vane cable Signal Output The WAC155 transmitter provides a half-duplex RS-485 serial bus connection. Wind data is provided in standard NMEA messages. In addition, a service connection is available for configuration and status information.
Chapter 3 _______________________________________________________________ Installation Each device in the same bus has a unique configurable ID, containing 1..5 characters. Alphabetical characters a-z and A-Z (case-sensitive) are accepted, as well as numbers 0-9. Typically, only a 4-wire shielded cable is required for the line between the WAC155 transmitter and the receiving end. Two of the four wires provide the operating power for the system.
User's Guide ______________________________________________________________________ Optional Heating Power The WAC155 transmitter also provides the sensors with a throughput for heating power, which can be connected if sensor heating is required. The heating power is galvanically isolated from the operating power. The heating power connection requires an extra pair of wires.
Chapter 3 _______________________________________________________________ Installation sensors are connected. The parallel connection is illustrated in Figure 11 on page 23. 0702-019 Figure 11 Heating Power Connection with 20 V Power Supply When a 20 V power supply is used, the heating power can also be connected to a single sensor. Refer to Figure 12 on page 23 and Figure 13 on page 24.
User's Guide ______________________________________________________________________ 0702-021 Figure 13 Heating Power Connection for Wind Vane Only Wiring Examples Figure 14 on page 25 illustrates the basic wiring when the WAA151 and WAV151 wind sensors are connected to the WAC155 transmitter. Heating power is not connected in the figure. Figure 15 on page 26 illustrates wiring with the WHP151 Mains Power Supply, with heating power connected.
Chapter 3 _______________________________________________________________ Installation 0702-005 Figure 14 Basic Wiring with WAA151 and WAV151 Sensors VAISALA _______________________________________________________________________ 25
User's Guide ______________________________________________________________________ 0702-022 Figure 15 Wiring with WHP151 Mains Power Supply 26 ___________________________________________________________________M210822EN-A
Chapter 3 _______________________________________________________________ Installation 0702-006 Figure 16 Wiring with WHP25 Mains Power Supply and the WA252 Series Wind Sensors VAISALA _______________________________________________________________________ 27
User's Guide ______________________________________________________________________ Mounting Mounting WAC155 to the Top of a Pole Mast Figure 17 on page 28 illustrates mounting of the WAC155 transmitter to the top of a Ø 60 mm pole mast using the standard mounting clamp. The arrow on the cover of the junction box must point to north.
Chapter 3 _______________________________________________________________ Installation Mounting Wind Sensors to WAC155 0110-005 Figure 18 Installation of the Wind Sensors WAA151 and WAV151 to WAC155 The following numbers refer to Figure 18 on page 29.
User's Guide ______________________________________________________________________ Verification Monitor the status indicator LED when powering up the WAC155 transmitter. The LED will flash green if the self-diagnostics are completed without errors, and red if there is an error condition. An error condition may be caused by an erroneous installation, configuration, or a combination of both. For example, enabling sensor heating without connecting the heating power will cause an error state.
Chapter 4 ________________________________________________________________ Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate the Vaisala Serial Wind Transmitter WAC155. User Interface The WAC155 does not provide a direct user interface, except for a status indicator LED on the component board. The LED will flash green when the operational status is OK, and red when there is an error condition.
User's Guide ______________________________________________________________________ More than one transmitter can be connected to a single RS-485 bus. In the case of single transmitter, the auto-transmit mode can be used (the device transmits data messages with configured interval). If there are several transmitters in the same bus, auto-transmission may not be enabled, and data can be only polled by query. Each device in the same bus has a unique configurable ID, containing 1..5 characters.
Chapter 4 ________________________________________________________________ Operation $WIMWV,39,R,1.3,M,A*06 $WIMWV,39,R,0.5,M,A*01 $WIMWV,61,R,1.0,M,A*08 $WIMWV,59,R,1.2,M,A*01 $WIMWV,53,R,1.5,M,A*0c $WIMWV,46,R,1.2,M,A*0f $WIMWV,70,R,1.
User's Guide ______________________________________________________________________ Example response: $PAMWV,50,R,0.0,M,A*04 Table 5 on page 34 provides checksums and polling strings for some typical device IDs.
Chapter 4 ________________________________________________________________ Operation discarded. Commands may include parameters and values which are separated by a space ' '. Only one parameter can be set with a single command; multiple parameters require multiple commands. You can repeat the previous command by typing CTRL+P. The previous command will be brought to the console, but it will not be automatically executed. You can delete characters with the backspace key [<=].
User's Guide ______________________________________________________________________ The sections below contain a description of each command. The meaning of the command line elements is presented in the table below. Table 7 Meaning of the Command Line Elements Element Meaning Text Style Used SAMPLE Specifies the name of the command or utility. Indicates a set of choices from which the user must choose one, several or all. Indicates optional items.
Chapter 4 ________________________________________________________________ Operation If there are multiple transmitters on the same bus, you should always open the service connection so that you specify the device ID. Do not install multiple transmitters on the same bus without assinging a different device ID for each transmitter.
User's Guide ______________________________________________________________________ SETDEV The SETDEV command sets the device ID of the transmitter. In a multi-transmitter network, the device ID of each transmitter must be unique. SETDEV id where value = Specifies the new device ID for the transmitter. The ID may contain up to 5 characters, including A-Z, az, and 0-9. The ID is case-sensitive.
Chapter 4 ________________________________________________________________ Operation SETDIR average where value = Wind direction computation time period in seconds. Range 0.25 ... 5.00 in 0.25 second increments (default 3.00) Example: >setdir average 3.00 AVERAGE=3.00 > SETMES The SETMES command specifies the data transmission mode. The transmitter can support four (4) different messages at a time. Each message has its own settings for the message type and transmit interval.
User's Guide ______________________________________________________________________ Example: >setmes 1 type mwvquery 0 TYPE=NONE INTERVAL=0.00 1 TYPE=MWVQUERY INTERVAL=1.00 2 TYPE=NONE INTERVAL=0.00 3 TYPE=NONE INTERVAL=0.00 > SETMEA The SETMEA command configures measurement parameters. The configurable parameters include anemometer transfer function parameters gain and offset.
Chapter 4 ________________________________________________________________ Operation Example: >setmea offset 0.318 GAIN = 0.09853 OFFSET = 0.31800 POWERSAVE = 1 ALLOWEDSPDCHANGE = 10.0 MAXINVALIDSPDCOUNT = 2 > SETCOM The SETCOM command configures the communication ports. Default communication port settings are 9600-n-8-1. SETCOM [portnumber] [baudrate] [databits] [stopbits] [parity] [txddelay] where portnumber= The number of the COM port to configure, 0 or 1.
User's Guide ______________________________________________________________________ SETHEA The SETHEA command configures the wind sensor heating control. Sensor heating is provided to prevent frost in sensor bearings. Heaters are powered by an external power supply, which is not the same as the sensor system power supply. Heating is not enabled by default. If necessary, heating can also be forced. SETHEA [active] [tos] [thys] where active = Enables the wind sensor heating functionality.
Chapter 4 ________________________________________________________________ Operation GETHEA Example: >gethea Heating OFF Temperature 14.25 > SETALR The WAC155 can monitor the wind sensor movement to detect if the sensors appear to be stuck in place. The SETALR command is used to configure this functionality. If the functionality is enabled and timeouts are not zero, sensors are cross-checked for changes, i.e.
User's Guide ______________________________________________________________________ Typical commands: SETALR ACTIVE 1 (activate the alarm functionality) SETALR DIR 60 (alarm if wind vane stuck for 60 seconds) SETALR SPD 60 (alarm if anemometer stuck for 60 seconds) SETALR CALM 1440 (alarm if both sensors stuck for 1440 minutes) Example: >setalr active 1 ACTIVE= 1 DIR= 60 SPD= 60 CALM= 1440 DIRLIMIT= 3 SPDLIMIT= 0.
Chapter 4 ________________________________________________________________ Operation GETSET The GETSET command will return the current configuration of the current unit. GETSET Example: >getset SETDEV ID=A1 SETSPD AVERAGE=3.00 SETDIR AVERAGE=3.00 … HELP The HELP command displays a list of the supported commands. HELP Example: >help CLOSE Close service connection SETDEV Set device ID SETSPD Speed computation average length SETDIR Direction computation average length ...
User's Guide ______________________________________________________________________ Example: >inie FACTORY DEFAULTS > RESET The RESET command resets the transmitter, and takes any new configuration settings into use. After using this command, you have to re-open the service connection with the OPEN command. RESET Example: >RESET Wait 5 seconds delay... ERRS When issued alone without the [mask] option, the ERRS command returns the current error status of the transmitter.
Chapter 4 ________________________________________________________________ Operation ERRS [mask] where mask = Implements an error mask. value = The value for the error mask in hexadecimal format (default 0010).
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Chapter 5 ______________________________________________________________ Maintenance CHAPTER 5 MAINTENANCE This chapter provides information that is needed in basic maintenance of the Vaisala Serial Wind Transmitter WAC155. Periodic Maintenance Visual Checking Check every 1 to 2 years that the component board is not corroded. Replacing Consumables When replacing the component board, read carefully the section ESD Protection on page 9.
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Chapter 6 ___________________________________________________________ Troubleshooting CHAPTER 6 TROUBLESHOOTING This chapter describes common problems, their probable causes and remedies, and contact information. Problem Situations Table 9 Problem Situations and Corrective Actions Problem Possible cause Action Data is not received by the data collecting system Improper or loose connections. Check wiring and tighten the screw terminals. Check and correct using the service connection.
User's Guide ______________________________________________________________________ Error Messages The table below describes the error codes defined in the WAC155. If you use the ERRS command to specify an error mask, use the hexadecimal values that are provided in the table. For help in using the service connection to read the errors and configure the WAC155, refer to section List of Serial Commands on page 35.
Chapter 6 ___________________________________________________________ Troubleshooting Technical Support For technical questions, contact the Vaisala technical support: E-mail helpdesk@vaisala.com Fax +358 9 8949 2790 Return Instructions If the product needs repair, please follow the instructions below to speed up the process and to avoid extra costs to you. 1. Read the section Warranty on page 10. 2. Contact a Vaisala Service Center or a local Vaisala representative.
User's Guide ______________________________________________________________________ Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services. See contact information below. Vaisala Service Centers also offer accredited calibrations, maintenance contracts, and a calibration reminder program. Do not hesitate to contact them to get further information. ./24( !-%2)#!. 3%26)#% #%.
Chapter 7 ____________________________________________________________ Technical Data CHAPTER 7 TECHNICAL DATA This chapter provides technical data of the Vaisala Serial Wind Transmitter WAC155.
User's Guide ______________________________________________________________________ Table 12 Inputs and Outputs Property Description/Value Signal input: wind direction wind speed Input operating power 6-bit parallel GRAY code Pulse frequency 0 ... 750 Hz 9 ... 15.5 VDC, 8 mA typical incl. sensors (when power-save mode is enabled) Maximum operating power 50 mA (when power-save mode is disabled) Input heating power 16 ... 24 VAC or VDC 32 ...
Chapter 7 ____________________________________________________________ Technical Data Dimensions in mm (inches) 0702-009 Figure 19 WAC155 Dimensions VAISALA _______________________________________________________________________ 57
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