CARLO GAVAZZI ING CH WM4-96: Modular Universal Utility Meter and Power Analyzer Harmonic analysis; Energy meters; Load profile; Plug and play module system; SMS reception and transmission. These are only a few among many other functions performed by your WM4-96. What’s more, Carlo Gavazzi means ISO9001 certification, a working experience of many decades and a widespread presence all over the world. All this because we want our customers to have the top service and the top products.
Index WM4-96 Instruction manual: INDEX CARLO GAVAZZI WM4-96, 32-bit µ-processor based modular universal utility meter and power analyzer FW rev.C.01 TO BEGIN WITH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 ■ Front panel description . . . . . . . . . . . . . . . . . . . . .7 ■ Display adjustment . . . . . . . . . . . . . . . . . . . . . . . .7 DISPLAYING OF THE VARIABLES . . . . . . . . . . . . . . . . .8 ■ Page “00”, starting page . . . . . . . . . . . . . . . . . . . .
Index 3 ❏ Pass “997”: reset of data memory . . . . . . . . .16 ❏ Pass “996”: reset of load profiles . . . . . . . . . .16 LET’S START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 ■ Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 ■ Change password . . . . . . . . . . . . . . . . . . . . . . . .18 ■ Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 ❏ Analogue measuring input module . . . . . . . . . . installed . . . . . . . . . . . . . .
Index ❏ Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 ❏ Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .48 ❏ Remote control . . . . . . . . . . . . . . . . . . . . . . .49 ■ Serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 ❏ RS232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 ❏ Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 ❏ GSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To begin with 5 HOW TO USE THE SYMBOLS Go to the page where the previous main subject is described. ▲ Go to the page where the next main subject is described. ▲ Go to the page where the subject written on the top of the current page starts. Go to the page where the subject written on the top of the current page ends. This symbol indicates a particularly important subject or information. This symbol indicates that more details are given on the current subject.
To begin with - indirect power energy measurements by interfacing the meter of the energy supplier (LV or MV/HV connection); - direct measurements for the instantaneous variables (LV connection) and indirect measurements for the energy variables (LV or MV/HV). In all operating modes it’s possible to add the management of water and gas meters and the tariff management of the energies both from the instrument and from external inferfacings.
To begin with 7 ■ Front panel description Exit from the menu and cancel the choice you have made. It allows the user to access some functions relating to the displayed variables. Access to programming or settings’ confirmation.
Displaying of the variables ■ Page “00”, Starting page When the instrument is swtched on, the main page of variable displaying is shown. The first page, called page “00”, is the only one configurable by the user who can choose the variables to be displayed in the 4 displaying areas. In all the other pages the type of variables displayed in the four displaying areas is automatically selected and cannot be changed.
Displaying of the variables ■ 9 How to scroll the various pages To scroll the various pages, use the ▲ and ▼ keys. Pressing the S key in any one of the display pages, you access to the programming phase. The F key, on the contrary, has various functions depending on the selected page. ■ How the F key changes function depending on the display page. ❑ Pages from "00" to "13" (00 only without measuring input module).
Displaying of the variables ❑ Pages from "19" to "24" (from 10 to 11 in single phase mode) Displaying of the harmonic analysis When the instrument is supplied, these pages are not enabled, see page 44 to enable them. The F key is active: access to the detailed analysis of the harmonics. After pressing the F key, a pointer appears along the horizontal axis (see figures below).
Displaying of the variables 0° Generated 270° 90° Imported 180° Harmonics: This angle is displayed only if the measurements are taken in a three-phase system with neutral ❑ ❑ Pages relating to the energy meters Page "25" (3 without measuring input module) Displaying of the total energy meters F key disabled. ❑ Page "26" (4 without measuring input module) Displaying of partial energies F key is active; modification of tariff/displayed period.
Displaying of the variables ❑ Page "27" (5 without measuring input module) Display of Gas and Water meters F keys disabled. Depending on the setting, the instrument may display one only of the following meter combinations: Gas; Gas with Gas in night tariff; Gas and Water. The water and gas meters are managed by the digital inputs. ❑ Page “28” (6 without measuring input module) Displaying of instrument configuration F key disabled.
Displaying of the variables 13 Load profile of the installed power divided into hour time periods Wdmd of the last integration period Time of the last integration Installed power Example: the consumed power integrated in 15 minutes exceeds the installed power Graphic representation of the consumptions F Pressing F , the instrument will display in detail the data indicated by the arrow that will appear on the abscissae axis. To scroll the single data use the F F keys.
Displaying of the variables programmed for that hour time period, the storage time of the Wdmd sample and the relevant value. The data can be scrolled by means of the ▲ and ▼ keys and are relevant to the indication of the arrow that appears on the ascissae axis. To go back to the normal display, press the F key again.
Displaying of the variables 15 Only for alarms and diagnostics: detection of the abnormal condition (ON) or return to the normal condition (OFF) Control type: alarm (e.g.: A2), diagnostics (e.g.: D1), maximum value (MAX), minimum value (MIN). Variable being controlled. Alarms: value of the ON alarm; Max and Min logging: maximum and minimum measured values. Time of the event. Date of the event.
Displaying of the variables ❑ Pass "998": display of the stored dmd variables (Only if the RS232 + RTC module is present) The stored dmd variables can be displayed by pressing the S key in any one of the measuring page (excluded the “load profile” pages): when the instrument asks for the , enter the value “998”: the instrument will display the values of the stored variables, the time (hoursminutes-seconds) and the date (day-month) of storage.
Programming 17 It is very important to verify that, every time the configuration of the instrument (modules and/or associated variables, electrical systems, etc.) changes, the setting of the parameters is according to the new configuration.
Programming ■ Change Password This function allows you to choose the desired password value (from 0 to 500). S Press the S key and when the new password value is required, enter the desired value by means F of the ▲ and ▼ keys; then S ▲ 1.2.. ..2.1 ▼ press the S key to confirm the new value. The instrument goes back to the main menu, as shown in the figure on the left. To reset your choices and go back to the main Measure F menu press F .
Programming 19 iff gas metering: to do this the AQ1042 digital inputs + aux module must be installed in slot A. Choose the “INPUTS” function by S F means of the ▲ and ▼ keys S ▲ and press S to enter in the submenu. Choose the “MEASURE” ▼ F function by means of the ▲ and S ▲ S ▲ ▼ keys; press S to select the relevant operating mode and enter the relevant sub-menu where you can select the digital inputs (if present in slot A) connected to the gas, water and energy meters.
Programming kvarh- will be enabled). 3- Once the desired type of meter is confirmed, the instrument asks for the number of pulses to be associated to the unit increase (e.g. if you type the value 10 you will need 10 input pulses in order to make the instrument display 1 m3). 4- A2 INPUT, enabling function of the water metering or of the kvarh- meter (generated kvarh); ENERGY METER” follow the operations described on paragraphs 1 and 2.
Programming ❑ Analogue measuring input module NOT installed (AQ1018 - AQ1019). The instrument carries out only the following measures: W, var, Wdmd, vardmd, PFdmd using only the pulses acquired through the digital inputs. The “VA” power is always 0. It’s possible to count and display the measurements of: water and gas, gas and gas night tariff, or Wh- and varh meter.
Programming the counting of the “W” and “var” energies proceed as follows: 5- Choose the C1 INPUT function by the ▲ and ▼ keys (see the description of the selected input function and the weight of the associated pulse under the scrolling window); press S to confirm. 6- Once the ON/OFF window appears, choose “OFF” by the ▲ and ▼ keys to disable the counting of kWh’s and confirm with S ; choose “ON” to enable the counting of kWh’s and confirm with S .
Programming the ▲ 23 ▼ keys, confirm with S . When the ON/OFF win- dow appears select ON by means of the ▲ ▼ keys to enable the INPUT or OFF to disable it, then confirm your choice by means of the S key. Press F to go back to the previous menus. WM4-96 is able to recognize the presence of the analogue measuring input module (AQ1018AQ1019). If you try to enter the MEASURING menu when the measuring input module is not installed, the instrument displays NOT AVAILABLE.
Programming TIME PERIODS SELECTION MODE CHANNEL 3 SLOT A CHANNEL 3 SLOT C ACTION Open Open Tariff 4 Open Close 2 Winter / 3 Summer * Close Open 1 Winter / 2 Summer** Close Close Tariff 4 CHANNEL 2 SLOT A (if A2 enabled as GAS): Close = day-time tariff GAS is selected. Open = night-tariff GAS is selected. * WM4-96 associates to the meter tariff 2 in Winter and tariff 3 in Summer. ** WM4-96 associates to the meter tariff 1 in Winter and tariff 2 in Summer.
Programming 25 ■ System S ▲ ▼ F S ▲ This function allows the user to select the type of electrical system by choosing among single phase (1phase), balanced three-phase plus neutral (3+N phases bal.), unbalanced three-phase plus neutral (3+N phases unbal.), three phase balanced (3 phases bal) and threephase unbalanced (3 phases unbal). Choose the SYSTEM function by means of the ▼ ▲ and ▼ keys, press S to confirm, then select the desired system by means of the ▲ and ▼ keys and confirm with S .
Programming ■ CT ratio S ▲ This function allows you to select the value of the CT ratio. Example: if the primary of the CT (current transformer) being connected is 300A and the secondary is 5A, the CT ratio corresponds to 60 (obtained from the calculation: 300/5). Choose the function CT RATIO by ▼ F means of the ▲ and ▼ keys; S ▲ 1.2.. ..2.1 ▼ press S to confirm then select the desired value by means of the ▲ and ▼ keys and confirm with S .
Programming 27 Choose the function VT-PT RATIO by means of ▲ and ▼ ; to confirm press S ; then select the desired value by the ▲ and ▼ S ▲ 1.2.. ..2.1 ▼ keys and confirm with S . To reset your choice and go back to the main menu, press F . Changing the VT ratio, all the MIN/MAX values, all events and partial energy meters are reset. ■ Display page S ▲ This function allows you to select the variables to be displayed on page 00.
Programming ■ MIN MAX VALUES ▲ S This function allows the user to associate some variables to the automatic recording of maximum values (from MAX1 to MAX12) and minimum values (from MIN1 to MIN8). To use this function, proceed as follows: select the MIN MAX VALUES function from the ▼ F main menu using the ▲ and ▼ keys and confirm it with S .
Programming 29 ■ EVENTS SELEC.
Programming ■ Data logging ▲ S This function enables the logging of the required variables in the data logging. 1) Choose the function DATA LOG- ▼ F ▲ S GING by means of the ▲ and ▼ keys, press S to confirm; 2) select “DMD VARIABLES” by ▼ F ▲ S means of the ▲ and ▼ keys and confirm with S ; 3) the display shows the window with the list of the available DMD variables: select the required available (ON) vari- ▼ F able by means of the ▲ and ▼ keys and confirm with ▲ S ▼ F ▲ S S .
Programming 31 ■ DMD/AVG calcul. S ▲ This function allows you to select the calculation method of W-VA-PF. To enter these functions, select “DMD/AVG CALCUL” from the ▼ F S ▲ main menu using the ▲ and ▼ keys and confirm the selection with ▼ S . You can thus enter the DMD/AVG CALCUL. method: choose between the FIXED or F S ▲ 1.2.. ..2.1 ▼ FLOAT method using the ▲ and F S ▲ ▼ keys and confirm your choice with S . The display will show the window for setting the time in min- ▼ F S ▲ 1.
Programming updates its value at first after 15 minutes and afterwards every minute generating a window whose width corresponds to “15 minutes” and shifts by units of 1 minute. On the following page you can see the diagram that shows the two operating methods.
Programming 33 FIXED AVERAGE CALCULATION Where: Pmax is the maximum measured power, Pc is the contractual power, t1 is the selected average period FLOAT AVERAGE CALCULATION 17 Holidays period ▲ ▲ DMD/AVG calculation 31 37
Counters Management ■ Access to the Counters menu ▲ S This function allows you to choose the type of management of the energy meters. Select “COUNTERS” from the main ▼ F menu by means of the ▲ and ▼ keys; confirm with S to enter the specific sub-menu. ❑ SINGLE TARIFF Counters Management ▲ S This function allows you to choose the energy meters according to a single tariff which is the same for the whole year.
Counters Management 35 1-press S : the first box (trf=tariff) is highlighted; S ▲ 2-press S again: the TARIFF box will appear on the lower part of the display; now you can choose the tariff (from 1 to 4), e.g.: “1” by means ▼ F S ▲ of the ▲ and ▼ keys; ▼ F 3-press the S key once more, the “end tariff” hour is highlighted; 4-press the S key once more; the HOURS box will appear on the lower part of the display; now you can choose the hours - e.g. 8 - by S S ▲ 1.2.. ..2.
Counters Management ters; use the ▲ key to move from the left to the right and the ▼ key to move from the right to the left.
Counters Management 37 hour of the previous time period; d) the daily loop is closed by setting 24:00 as last hour of the last time period (to follow this procedure see step 4 on page 35), confirm the setting by pressing S and F to go back to the TARIFF SELECTION menu (“COUNTERS” submenu on page 34). NOTE: selecting the A3 or C3 digital inputs as ON, the DUAL TARIFF is no more available.
Counters Management 15-press the S key again to open the box where the day is to be set, 16-use the ▲ and ▼ keys to select the desired day (from 1 to 31 depending on the previously selected month); 17-press the S key to confirm the selection and move to th next parameter. To program the “end date” follow the same procedure described above from step 11 to step 16.
Counters Management 39 ❑ MULTI TARIFF This function allows the management of the counters according to many periods per day and three periods per year: WINTER, SUMMER and HOLIDAY. S ▲ To program the parameters relating to the winter season, simply follow the same procedure (holidays) described on page 37 from Step 11 to Step 17. The parameters of the SUMMER season are automatically set by the instrument as a difference between the previous two periods of the Year.
Counters Management DUAL TARIFF management trf1 20 22 24 2 trf1 4 18 6 16 8 14 12 10 WHOLE YEAR trf start end 1 OO:OO O8:OO 2 O8:OO 2O:OO 1 2O:OO OO:OO 1 TARIFF trf2 As you can see on the figure above, there’s a daily division into three periods with two different tariffs.
Counters Management 41 ❑ Installed power ▲ S This function allows the user to set the maximum installed tariff power (as per contract). The set power is associated to the desired tariff (t1-t2-t3-t4) and it’s displayed in the load profile graph (see also load profiles on page 12). Select INSTALLED POWER from ▼ F ▲ S the main menu by means of ▲ ▼ and ▼ and confirm it with S to enter the relevant submenu.
Counters Management ❑ Reset of the Energy Counters ▲ S The “RESET” menu allows you to reset the energy counters. ▼ F Press S to enter the menu and then use the ▲ and ▼ keys to select the desired type of reset. ▲ S Press S to enter the menu, then the instrument displays the following message: ▼ PAY ATTENTION, ALL THE METERS WILL BE RESET!! WILL YOU CONTINUE? To end the RESET procedure, press S ; to go back to the TARIFF SELECTION menu (counters sub-menu), press F .
Counters Management 43 ❑ Gas Counters Reset S ▲ The GAS RESET menu allows the user to reset the gas counters. Select GAS RESET by means of ▼ the ▲ and ▼ keys and confirm with S . The instrument displays the following message: PAY ATTENTION, ALL THE GAS COUNTERS WILL BE RESET! WILL YOU CONTINUE? To end the RESET procedure press S ; to go back to the TARIFF SELECTION menu (counters sub-menu), press F . ❑ Water Counter reset S ▲ The WATER RESET menu allows the user to reset the water counter.
Outputs / Other settings ■ Harmonics analysis This function enables the display of the windows relating to the harmonics analysis. ▲ S Press S to enter the HARMONICS menu: then, use ▼ F ▲ S the ▲ and ▼ keys to select the phase where you want the harmonic analysis to be enabled. ▼ The S key allows the user to enable (ON) or disable (OFF) the displaying (the function is cyclical: ON-OFF-ON). To go back to the main menu, press F .
Outputs / Other settings 45 The EURO/USA function allows the user to display the date and time according to the EUROPEAN (EURO, date: day/month/year; time: 24 hours) or AMERICAN (USA, date: month/day/year; time: 12 hours / AM and PM) format. ■ Digital Outputs S ▲ This function enables the user to connect the type of digital output to the slot at the beginning.
Outputs / Other settings The meaning of the symbols on the display is the following: OUT C0 (1): digital output SLOT C0, channel 1 OUT C1 (2): digital output SLOT C1, channel 2 OUT D0 (3): digital output SLOT D0, channel 3 OUT D1 (4): digital output SLOT D1, channel 4 ❑ S ▲ This function allows the user to set the parameters of the pulse output. The output can be connected to a specific energy and this energy can be connected to the desired tariff.
Outputs / Other settings 47 type. Confirm with S and go back to the digital output menu. To reset the choices and go back to the main menu, press F . The multiplyer of the measuring unit (kW, MW) automatically changes according to the CT or VT ratio set by the user. ❑ Alarms S ▲ This function allows the activation of a static or relay output when an alarm condition is detected.
Outputs / Other settings •Type: type of alarm: up alarm (MAX); down alarm (MIN); up alarm with latch (UP L): in this case the reset of the output can only be manual; down alarm with latch (D.L.): in this case the reset of the output can only be manual; down alarm with disabling at power ON (D.DO). Choose the desired alarm type by means of the ▲ and ▼ keys and confirm it with S . •Set on: ON-alarm set-point. Select the value of the variable by means of the ▲ and ▼ keys and confirm it with S .
Outputs / Other settings 49 ❑ Remote control ▲ S This function enables the control of the digital outputs by means of ▼ the RS485/RS232 communication port instead of using the instrument’s alarm. The outputs can be activated by a PC or PLC by sending special commands. Select the REMOTE CONTR. function by means of the ▲ and ▼ keys and confirm pressing the S key: the instrument will go back to the DIGITAL OUTPUT menu. To reset your choice and go back to the main menu, press F .
Outputs / Other settings ❑ Modem ▲ S The instrument communicates with a remote PC by an analogue modem. Select MODEM from the RS232 ▼ F ▲ sub-menu by means of the and ▼ keys and confirm with ▲ S S . The window with the modem settings appears: 1- PHONE NUMBER: select it ▼ F using the ▲ and ▼ keys and ▲ S confirm it with S . Then, select the required quantity of pre-set ▼ phone numbers to be managed (from 1 to 5) by the ▲ and ▼ keys and confirm it with S . 2- PASSWORD: not available.
Outputs / Other settings managed for each call. The subsequent calls are managed by priority: if the first phone number is engaged, the instrument calls the second and so on; when a phone number answers the call, then the alarm message is forwarded and the calls are finished.
Outputs / Other settings keys and confirm it by S . Then, select the desired numeric code by means of the ▲ and ▼ keys and confirm with S . 3- ALARMS: it enables the transmission of SMS alarm messages to GSM mobile phones when one of the selected alarms changes status (activation or deactivation).
Outputs / Other settings 53 REQUIRED INFORMATION VL1, VL2, VL3, VL-NΣ VL1-2, VL2-3, VL3-1, VLΣ REQUEST CODE WM4.xxx.VN WM4.xxx.VL REPLY TEXT WM4.xxx:[info] WM4.xxx:[info] AL1, AL2, AL3, AΣ WL1, WL2, WL3, WΣ VAL1, VAL2, VAL3, VAΣ varL1, varL2, varL3, varΣ PFL1, PFL2, PFL3, PFΣ Wdmd, VAdmd, vardmd, PFavg Log1, Log2, Log3, Log4, Log5, Log6, Log7, Log8 Total kWh+, kvarh+, kWh-, kvarhWinter kWh+, kvarh+, kWh-, kvarhSummer kWh+, kvarh+, kWh-, kvarhHoliday kWh+, kvarh+, kWh-, kvarhAlarm status WM4.xxx.A WM4.
Outputs / Other settings ❑ RS 485 ▲ S Select SERIAL OUTPUT from the main menu, then select ▼ F RS485 by means of the ▲ and ▲ S ▼ keys and confirm with S . Select the parameter to be set from the available sub-menus ▼ F with the ▲ and ▼ keys and S ▲ ▼ S ▲ ▼ S ▲ 1.2.. ..2.1 confirm it with S . The configurable parameters are: • ADDRESS of the instrument: from 1 to 255. • BAUD RATE: 1200, 2400, 4800 and 9600 bit/s. • PARITY: no parity, even parity and odd parity.
Outputs / Other settings S ▲ 55 • COEFFICIENT, to set the filtering coefficient of the instantaneous measurements. Increasing the value, also the stability and the settling time of the measurements are increased. Once one of the three parameters has been selected, set the desired ▼ F value by means of the ▲ and ▼ S ▲ ▼ keys and confirm it with S ▲ 1.2.. ..2.1 ▼ F S ▲ 1.2.. ..2.1 ▼ F S ▲ ▼ S . To exit the “FILTER” menu, press F . For any other info, see “Useful Info” on page 56.
Useful Info The variables measured by the instrument are correct if the inputs have been connected according to the right polarities (see figure below). Should the connecction not be conforming to the right polarities, measuring and retransmission errors may occur, both due to the wrong direction of the current flowing in the primary/secondary of the ammeter transformer being connected.
Useful Info higher value of this coefficient results in a higher settling time, that means a higher stability. The best result is generally obtained by setting the filtering coefficient at a value equal to at least 10 times the value of the range parameter. Considering the example above: 1.5*10=15. To enhance the stability, you may also increase the filtering coefficient (values within 1 and 255 only).
No 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Useful Info 1st variable 2nd variable 3rd variable 4th variable var L1 var L2 var L3 var Σ VA L1 VA L2 VA L3 VA Σ PF L1 PF L3 PF L4 PF Σ V L1 A L1 PF L1 W L1 V L2 A L2 PF L2 W L2 V L3 A L3 PF L3 W L3 VΣ PF Σ var Σ WΣ AΣ PF Σ Hz WΣ W dmd var dmd PF avg VA dmd MAX1 MAX2 MAX3 MAX4 MAX5 MAX6 MAX7 MAX8 MAX9 MAX10 MAX11 MAX12 MIN1 MIN2 MIN3 MIN4 MIN5 MIN6 MIN7 MIN8 Hystogram FFT V1 (THD, THDo, THDe, Single Harmonic) Hystogram FFT A1 (THD, THD
Useful Info 59 List of the available variables: V L1 AΣ VA L3 THDI V2 THDII A3 V L1 W L1 VA ∑ THD V3 THDI A3 V L3 W L2 PF L 2 THDll V3 AΣ dmd V L-N ∑ W L3 PF L 3 THDl V3 VA dmd V L1-2 W∑ PF ∑ THD A1 PF avg V L2-3 var L1 Hz THDll A1 W dmd V L3-1 var L2 THD V 1 THDl A1 ASY V L∑ var L3 THDll V1 THD A2 A L1 var ∑ THDl V1 THDll A2 A L2 VA L1 THD V2 THDl A2 A L3 VA L2 THDll V2 THD A3 The availability of the variables depends on the type of electrical system bei
Installation ceived to be mounted in one slot only. To know in which slot every module is to be mounted, refer to the figure on page 62. For a correct mounting of the instrument, insert the modules in the relevant slots, then, at the end, enter the central module, which can be a blind type module or an RS232 communication module. The central module will help fixing also the other modules in the relevant slots.
Installation ■ Overall dimensions and panel cut-out ❑ Mounting Insert the instrument (holding its front) and fasten it (from the back) by fixing the two lateral brackets (1) (supplied with the instrument) to the approprite location (2), using the two screws (3) supplied with the instrument. 2 1 3 60 Connect.
Installation ■ Position of the slots and relevant modules B A D C PU IM PS ■ Available modules ❑ Relay digital output modules AO1058 Single relay output AO1035 Dual relay output What is ASY? ▲ Power supply modules 60 67 ▲ 57 64
Installation DESCRIPTION A B C D PU PS IM ✓ RS485 Serial output ✓ RS232 Serial output + RTC+Data Memory Single relay output ✓ ✓ Single open collector output ✓ ✓ Dual relay output ✓ ✓ Dual open collector output ✓ ✓ ✓ Four open collector output ✓ 3 digital inputs ✓ 3 digital inputs +AUX ✓ ✓ Power supply ✓ Inputs ❑ Open collector digital output modules AO1059 Single open collector output AO1036 Dual open collector output 60 Serial output connections 67 ▲ ▲ Dimensions, pa
Installation ❑ Digital input modules AQ1038 3 digital inputs AQ1042 3 digital inputs+ aux power supply ❑ Serial output modules AR1041 RS232 Interface + RTC + Data memory AR1034 RS485 Interface ❑ Power supply modules AP1020 90-260 VAC/DC Power supply AP1021 18-60 VAC/DC Power supply Serial output connections 60 67 ▲ ▲ List of the variables 59 66
Installation 65 ■ Optional modules connection ❑ Digital inputs Connection by means of NPN transistor. AQ1042 digital input module Connection by means of NPN transistor. AQ1042 digital input module. Connection by means of contacts. AQ1042 digital input module. Connection by means of contacts. AQ1038 digital input module.
Installation ❑ Relay output ❑ Open collector outputs This diagram is valid also for the open collector modules with a lower number of outputs. The value of the load resistances (Rc) must be chosen so that the short-circuit current is lower than 100mA; the VDC voltage must be lower than or equal to 30 VDC. ❑ RS485 serial port 4-wire connection. Additional devices provided with RS485 (that is RS 1,2,3...N) are connected in parallel.
Installation 67 2-wire connection. Additional devices provided with RS485 (that is RS 1, 2, 3 ...N) are connected in parallel. The termination of the serial output is carried out only on the last instrument of the network, by means of a jumper between (Rx+) and (T). We recommend you to use the 4-wire connection: by means of the serial port the data are exchanged faster.
Electrical connections ■ Electrical connection diagrams ❑ 3/4-wire three-phase connection, balanced load Direct connection (3-wire system) Direct connection (3-wire system) CT and VT connection (3-wire system) CT and VT connection (4-wire system) ARON connection 71 ▲ ▲ Position of the modules 63 70
Electrical connections 69 ❑ Three-phase, 4 wires, balanced load CT connection (4-wire system) CT and VT connection (4-wire system) ❑ Three-phase, 4 wires, Unbalanced load Direct connection (4-wire system) CT connection (4-wire system) 68 Technical features 71 ▲ ▲ Serial output connection 67 73
Electrical connections ❑ 3/4-wire, three-phase connection, Balanced load CT and VT connection (4-wire system) CT and VT connection (4-wire system) ❑ 3-phase / 3-wire ARON connection, Unbalanced load CT connection (3-wire system) ARON CT and VT connection (3-wire system) ARON 68 Technical features 71 ▲ ▲ Optional module connection 65 72
Electrical connections 71 ❑ 3-phase / 3-wires conn.
Technical features ■ Input features Number of analogue inputs Current: 1 (single-phase; system: 3). 4 (three-phase; system: 3) Voltage: 1 (single-phase; system: 3). 4 (three-phase; system: 3). ■ Digital inputs AQ1038 Number of inputs: 3 (free of voltage). Use: synchronization of W-VA dmd measurements Interfacing: GMC/GME. Counting of m3 gas / water, tariff selection. Reading current: <8mA/ 17.5 to 25VDC. AQ1042 Number of inputs: 3 + input power supply. Input frequency: Max 20 Hz, duty cycle 50%.
Technical features 73 Voltage: range AV5: ±0.5% rdg (48 to 300VL-N) range AV7: ±0.5% rdg (80 to 480VL-N) included the following influences: frequency, output load power supply. Frequency: ±0.1% rdg (40 to 440 Hz). Active power (@ 25°C ± 5°C, R.H. ≤ 60%): ±0.5% (rdg + fs) (PF 0.5 L/C, 0.1 to 1.2 In, range AV5). ±1% rdg (PF 0.5 L/C, 0.1 to 1.2 In, range AV5). Reactive power (@ 25°C ± 5°C, R.H. ≤ 60%): ±0.5% (rdg + fs) (PF 0.5 L/C, 0.1 to 1.2 In, range AV5). ±1% rdg (PF 0.5 L/C, 0.1 to 1.2 In, range AV5).
Technical features Sampling: 6400 samples/s @ 50Hz. Display: graphic back-lighted LCD (128x64 dots). Selectable read-out for the instantaneous variables: 4x4 digit or 4x31/2 digit. Total energies: 4x9 digit. Partials: 4x6 digit. Max. and min. indication: Max. 9999 (999999999). Min. -9999 (–999999999). ■ Measurements Curent, voltage, power, energy, power factor, frequency, harmonic distortion (see display specs). TRMS measurement of distorted sine waves. Coupling: direct. Crest factor: ≤ 3, (max.
Technical features 75 ■ Output specifications ■ RS422/RS485 (on request) Bidirectional multidrop (static and dynamic variables) Connections: 2 or 4 wires, max. distance 1200m, termination directly on the module. Addresses: from 1 to 255, key-pad programmable. Protocol: RTU MODBUS/JBUS. Data (bidirectional) dynamics (reading only): all displayable variables. Statics (reading only): all the configuration parameters, energy reset, activation of digital outputs.
Technical features GSM modem for the transmission of SMS messages: of data logging and energy meters. The alarms can be sent also automatically while the variables can be recalled by means of special SMS question codes (see “How to use the SMS” on page 52). GSM kit type-tested for WM4: Siemens kit (external) model “TC35 TERMINAL” included GSM module, antenna and 230 power supply.
Technical features 77 ■ Alarm outputs (on request) Number of set-points: up to 4, independent. Alarm type: up alarm, down alarm, with or without latch, phase asymmetry, phase loss, neutral loss. Monitoring of the variables: all the variables listed in the paragraph “List of the connectable variables”. Set-point adjustment: 0 to 100% of the electrical scale. Hysteresis: 0 to 100% of the electrical scale. On-time delay: 0 to 255 s.
Technical features power quality analysis (LV or MV/HV connection). Indirect energy and power measurements by means of watt-hour meters (LV or MV/HV connection); Direct measurements for the instantaneous variables (LV connection) and indirect measurements for the energy variables (LV or MV/HV). It’s possible to add the management of gas and water metering to all of these working modes. Pulse weight: water/gas meter inputs: from 1 to 10000 pulses/m3, energy from 0.01 to 10000.
Technical features ■ 79 Data management type Type: FIFO. Memory size: 2Mb. Battery life: 10 years ■ Data logger function The data are stored at time intervals from 1 to 60 min.; up to 8 instantaneous variables can be selected. Historical data storing time: 3 weeks with storing time interval of 1 min. for four variables. 90 weeks (approx 2 years): with storing time interval of 60 minutes for eight variables.
Technical features Stored events: 240 pages, display by means of password. Data logger: display of the data by means of password with reset function of the relevant memory section. Load profile: 3 pages, daily, weekly and monthly graphic display. Reset function of the relevant memory section by means of password. Display language: selectable; Italian, English, French, German, Spanish.
Technical features 81 ■ General specifications Operating temperature: 0 to +50°C (32 to 122°F) (R.H.< 90% non-condensing). Storage temperature: -10 to +60°C (14 to 140°F) (R.H. < 90% non-condensing). Insulation reference voltage: 300 VRMS to ground (AV5 input). Insulation: 4000 VRMS between all inputs / outputs to ground. Dielectric strength: 4000 VRMS for 1 minute Noise rejection: CMRR 100 dB, 48 to 62 Hz. EMC: EN 50081-2, EN 50082-2. Other standards: safety: IEC 61010-1, EN 61010-1.
Technical features ■ Harmonic analysis Analysis principle: FFT. Harmonic measurement: current, up to the 50th harmonic; voltage, up to the 50th harmonic. Type of harmonics: THD (VL1) THD odd (VL1) THD even (VL1). The same is for the other phases: L2, L3. THD (AL1) THD odd (AL1) THD even (AL1). The same is for the other phases: L2, L3. Harmonic phase angle: the instrument measures the angle between the single harmonic of “V” and the single harmonic of “I” of the same order.
Technical features 83 ■ Time period management (energy, water and gas metering) Time periods: Energy. Selectable: single time, dual time and multi-time. Single time: Energy, water, gas Number of meters: total: 4 (9-digit) (no partial meters) Dual time: Energy, gas Number of meters: total: 4 (9-digit); partial: 8 (6-digit). Time periods: 2, programmable within 24 hours. Multi-time: Energy Number of meters: total: 4 (9-digit); partial: 48 (6-digit). Time periods: 4, programmable within 24 hours.
User’s page Name: . . . . . . . . . . . . . . . . . . .Surname: . . . . . . . . Company name: . . . . . . . . . . . . . . . . . . . . . . . . . . . WM4-96 Serial number: . . . . . . . . . . . . . . . . . . . . . Password: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instrument’s settings: Pulse value for gas meters: . . . . . . . . . . . .water: . . Pulse value for kWh meters: . . . . . . . . . . .kvarh: . . Tariff check by means of digital inputs: YES NO System: . . . . . . . . . .
