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stopbits

Number of stop bits, 1 or 2. Default value : 1.

txddelay

RS-485 turnaround delay in milliseconds. Range: 0 … 200. Default value:
30.

value

Value for the option

Example

>setcom baudrate 19200

BAUDRATE = 19200

DATABITS = 8

PARITY = NONE

STOPBITS = 1

TXDDELAY = 30

4.3.9 SETHEA

The

SETHEA

command configures the wind sensor heating control. Sensor heating ensures

frictionless rotation of sensor bearings in temperatures below -40 °C (-40°F). Heaters are
powered by a separate, external power supply. Heating is not enabled by default.

SETHEA [active] [tos] [thys] <value><cr>

active

Enables the wind sensor heating function. Possible values: 0 = Disabled
(default), 1 = Enabled, 2 = Forced ON

tos

Control limit for heating in Celsius degrees. Range: -55 … +125 (default: 4)

thys

Thermal hysteresis in Celsius degrees. Range: -55 … +125 (default: 1)

value

Value for the option

If heating is enabled, it turns on when the temperature drops below

TOS - THYS

. Heating

turns off when the temperature rises above

TOS + THYS

. With the default values of

TOS

and

THYS

=1, heating is enabled at +3 °C and disabled at +5 °C.

SETHEA ACTIVE 2

is for testing purposes only. Leaving forced

heating on for longer periods of time may damage the heating elements of the
sensors.

CAUTION!

WAC155 User Guide

M210822EN-E

Содержание WAC155

Страница 1: ...M210822EN E User Guide Vaisala Serial Wind Transmitter WAC155...

Страница 2: ...inal English versions In ambiguous cases the English versions are applicable not the translations The contents of this document are subject to change without prior notice Local rules and regulations m...

Страница 3: ...18 3 5 1 Optional Heating Power 18 3 6 Wiring 21 3 6 1 Wiring WAA151 and WAV151 with WAC155 21 3 6 2 Wiring WAA252 and WAV252 with WAC155 23 3 7 Configuration 26 3 7 1 Configuring WAC155 for WA25 26...

Страница 4: ...RESET 45 4 3 17 ERRS 46 5 Maintenance 47 5 1 Periodic Maintenance 47 5 2 Replacing Consumables 47 6 Troubleshooting 48 6 1 Problem Situations 48 6 2 Error Messages 49 7 Technical Data 50 7 1 WAC155 Sp...

Страница 5: ...Power Connection with 20 V Power Supply 20 Figure 11 Heating Power Connection for Anemometer Only 20 Figure 12 Heating Power Connection for Wind Vane Only 21 Figure 13 Wiring WAA151 and WAV151 with W...

Страница 6: ...5 Default Serial Communication Settings 30 Table 7 Checksum 32 Table 8 Configuration Commands 33 Table 9 Definitions for Command Line Elements 34 Table 10 Problem Situations and Their Remedies 48 Tabl...

Страница 7: ...Related Manuals Document Code Name M210293EN Vaisala Anemometer WAA151 User Guide M210294EN Vaisala Wind Vane WAV151 User Guide 1 3 Documentation Conventions Warning alerts you to a serious hazard If...

Страница 8: ...Tip gives information for using the product more efficiently Lists tools needed to perform the task Indicates that you need to take some notes during the task WAC155 User Guide M210822EN E 6...

Страница 9: ...00 141 However these sensors are not directly mountable to the sensor cross arm The system supplies power to the wind sensors through the transmitter The input operating voltage is 9 31 5 VDC The tra...

Страница 10: ...heir intended use However it is possible to damage the product by delivering electrostatic discharges when touching removing or inserting any objects in the equipment housing To avoid delivering high...

Страница 11: ...the flow of air Installations on top of high buildings or masts and in sites on open grounds are vulnerable to lightning strikes A nearby lightning strike may induce a high voltage surge not tolerabl...

Страница 12: ...oes not remarkably disturb wind measurement at a minimum distance of 10 h There must be at least 150 m 500 ft open area in all directions from the mast Minimum distance between the mast and obstacles...

Страница 13: ...ding The recommended minimum length h for the mast that is installed on the 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...

Страница 14: ...Vaisala Wind Vane 3 Transmitter contains the component board 4 Sensor cable gland 5 Cross arm 2 Select the RS 485 termination See Service Connector and Jumper Settings page 13 If the data line is sho...

Страница 15: ...o Cross Arm page 28 and the sensor manuals 9 Before erecting the mast align the cross arm See Alignment page 27 In tower installations you may have to mount and align the sensors on existing structure...

Страница 16: ...D 3 Grounding screw In marine applications you must remove the grounding screw 3 4 Connections WAC155 provides the line cable entry through a gland for a cable with a diameter from 7 to 10 mm For bett...

Страница 17: ...or X1 Pinout Pin Number Signal Description 1 F Frequency input from sensor 2 F Supply voltage output to sensor 3 GND Sensor ground 4 HT1 Heating supply through control switch from X2 5 HTC Heating com...

Страница 18: ...G2 Gray code input from sensor bit 2 9 G1 Gray code input from sensor bit 1 10 G0 Gray code input from sensor bit 0 11 AIP Reserved for analog vane 3 4 1 Cable Connections The transmitter connects the...

Страница 19: ...rs in the same bus auto transmission cannot be enabled and data must be polled from one sensor at a time using NMEA query If you use only one transmitter you can configure it to automatically transmit...

Страница 20: ...is 120 mW with WA15 series sensors and powersave mode activated The power line is protected against incorrect polarity and overvoltage transients caused by nearby lightning strikes Transient protecti...

Страница 21: ...When connecting DC heating power make sure you have the correct polarity of the X2 connector pins 1 and 2 HT1 and HT2 AC heating power wires can be connected either way round You can use the 40 V pow...

Страница 22: ...ne sensor anemometer WAA151 or wind vane WAV151 you must use a 20 V power supply and replace the missing sensor heating element with a jumper wire In this case only 0 5 A is typically consumed Figure...

Страница 23: ...WAC155 on a weather station see the weather station documentation for installation instructions The following wiring diagrams show how to wire the WA15 sensors WAA151 and WAV151 with WAC155 If heating...

Страница 24: ...d WHP151 has jumpers for configuring the power output Connect pins 2 and 3 of X5 to set the correct operating voltage and remove the jumper of X4 to provide continuous heating power If you connect the...

Страница 25: ...WAA252 and WAV252 with WAC155 The following wiring diagrams show how to wire the WA25 sensors with WAC155 No external operating voltage Low current operating power needed If you have WA25 you configur...

Страница 26: ...pply WHP25 WAA252 supplies WAC155 with the operating power 12 Vout to X2 3 No external operating voltage is applied to connector X2 The expansion connector required for high current wiring is included...

Страница 27: ...also when heating power is not available The expansion connector required for high current wiring is included in the WAA252 accessories WAA252 accessories include the expansion connector required for...

Страница 28: ...ommands on a single line and terminate them with a line feed lf or a carriage return cr character Separate parameters and values by a space 1 Open a serial connection to WAC155 The default settings ar...

Страница 29: ...w on the cover of the junction box must point to the North Figure 17 Mounting WAC155 on Top of Pole Mast 3 8 1 Alignment After mounting the WAC155 transmitter to the mast make sure that the WAV151 end...

Страница 30: ...orth and magnetic North 3 9 Mounting Wind Sensors to Cross Arm You can mount the sensors only one way to the cross arm flanges This ensures the correct alignment when replacing or reassembling the win...

Страница 31: ...malfunction an erroneous installation or configuration or a combination of these To diagnose the problem use the service command ERRS over the service connection If WAC155 signal cable is connected t...

Страница 32: ...o transmit mode or you can get the data as a response to an MWV query The data is provided in standard NMEA MWV wind speed and angle messages A service interface is available at pin header X5 of the b...

Страница 33: ...he checksum CS Two character checksum for the message The comma is used as a separator between the fields Here are some examples of MWV messages WIMWV 39 R 1 3 M A 06 WIMWV 61 R 1 0 M A 08 WIMWV 39 R...

Страница 34: ...MWV message containing the wind data An example of a query with device ID A WIPAQ 72 Example of response PAMWV 50 R 0 0 M A 04 The following table lists checksums and polling strings for queries with...

Страница 35: ...e connection remains open When you change parameter values you must reset with the RESET command or by powering up to get the new parameters into use The parameter setting commands are not case sensit...

Страница 36: ...isplays the current error status INIE Resets the transmitter to factory default settings RESET Resets the transmitter to new settings The following table lists the definitions for various command line...

Страница 37: ...e dollar sign OPEN Use this command only when you have a single transmitter on the bus The service connection remains open until it is closed with the CLOSE command or the defined service timeout expi...

Страница 38: ...ay contain up to 5 characters including A Z a z and 0 9 default no ID Example setdev id A1 ID A1 4 3 4 SETSPD The SETSPD command configures the wind speed averaging time SETSPD average value cr value...

Страница 39: ...r can support four different messages at a time Each message has its own settings for the message type and transmit interval The supported message types are NONE no message MWV auto transmission of st...

Страница 40: ...0 10 0 default 0 101 offset Anemometer transfer function offset parameter Range 10 0 10 0 default 0 348 powersave Defines whether sensor power is pulsed or provided continuously Pulsing saves power a...

Страница 41: ...SETCOM The SETCOM command configures the data communication parameters SETCOM portnumber baudrate databits parity stopbits txddelay value cr In normal use portnumber must always be omitted The port n...

Страница 42: ...THEA active tos thys value cr active Enables the wind sensor heating function Possible values 0 Disabled default 1 Enabled 2 Forced ON tos Control limit for heating in Celsius degrees Range 55 125 def...

Страница 43: ...than 0 the sensors are cross checked for movement If one sensor moves and the other does not for a certain period of time the motionless sensor is considered stuck SETALR active dir spd calm dirlimit...

Страница 44: ...Below the limit the sensor is considered absent and MWV direction value is given as null field Setting dirvoltlimit 0 deactivates the function Default value 0 2 value Value for the option If you have...

Страница 45: ...igured time interval the device closes the service connection and returns to normal operational state Zero value disables the auto close function which means that the service connection never closes u...

Страница 46: ...FFSET 0 32800 POWERSAVE 1 ALLOWEDSPDCHANGE 10 0 MAXINVALIDSPDCOUNT 2 THIES 0 CALIBMIN 540 CALIBMAX 2640 SETCOM BAUDRATE 9600 DATABITS 8 PARITY NONE STOPBITS 1 TXDDELAY 30 SETHEA ACTIVE 0 TOS 4 00 THYS...

Страница 47: ...the current settings with GETSET and save the output After using this command you must reset the transmitter with the RESET command This is to ensure that the default values are correctly validated T...

Страница 48: ...umber formed by combining the hexadecimal values of the desired errors By default the mask is 1010 which means that the NMEA data is invalid only if both wind sensors are missing or broken or stuck pr...

Страница 49: ...sure that the component board is not corroded A probable cause for corrosion is that the box cover or cable gland have not been tightened properly 5 2 Replacing Consumables Before replacing the compo...

Страница 50: ...he heating power supply has a power failure Make sure that the power supply is connected and operational MWV message returns a null field for wind speed or direction reading Parameter spdvoltlimit or...

Страница 51: ...rational sensor 4 0010 Both sensors missing or broken Wind speed and direction sensors are missing or broken 5 0020 Internal error Reserved for future use 6 0040 Erroneous reading from temperature sen...

Страница 52: ...d Table 13 Inputs and Outputs Property Description Value Input operating voltage 9 31 5 V Input operating current incl both sensors Power save enabled 7 mA typically at 24 V Power save disabled 37 mA...

Страница 53: ...ocol NMEA 0183 MWV and MWV Query 1 Adjustable rate 300 19200 7 8 O E N 1 2 Table 14 Operating Environment Property Description Value Operating temperature 55 60 C 67 140 F Storage temperature 60 70 C...

Страница 54: ...or WAV151 252 0 8 m 31 5 in open lead on one end 10 wires connector 230119 on other end ZZ45037 Special length sensor cable for WAA151 252 open lead on one end 6 wires connector 230118 on other end ZZ...

Страница 55: ...warranty information 2 Contact Vaisala technical support and request a Return Material Authorization RMA and shipping instructions Always request the RMA before returning any faulty material Provide...

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Страница 58: ...www vaisala com...

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