Table of Contents
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CARLO GAVAZZI
A u t o m a t i o n
C o m p o n e n t s
EM4-DIN: three-phase energy
meter
Energy meters; Gas and Water
meters; Plug and play technique.
These are only a few among many
other functions performed by your
EM4-DIN. What's more,
Carlo Gavazzi means ISO9001 cer-
tification, 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.
Welcome in the Carlo Gavazzi
world and compliments for your
smart choice. Visit our web-site at:
www.carlogavazzi.com
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Table of Contents
Related Manuals for CARLO GAVAZZI EN61036
Summary of Contents for CARLO GAVAZZI EN61036
- Page 1 Plug and play technique. These are only a few among many other functions performed by your EM4-DIN. What’s more, Carlo Gavazzi means ISO9001 cer- tification, a working experience of many decades and a widespread presence all over the world.
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Page 2: Table Of Contents
Index EM4-DIN Instruction manual: INDEX CARLO GAVAZZI EM4-DIN, three-phase energy meter FW rev.01 TO BEGIN WITH ......04 Front panel description . - Page 3 Index Dimensions and panel cut-out for panel mounting ..25 Open collector output connections ...26 Digital input connections ....26 RS422 / 485 serial output connections .
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Page 4: To Begin With
To begin with Front panel description Display previous page Display next page Access to Back-lighted Safety Reference programming or LCD Display standards to which setting confirma- the instrument tion refers List and description of displayed measuring pages When the instrument is switched on, it displays the first measuring page relating to the kWh and kvarh total meters (as shown in the picture on the top of the... - Page 5 To begin with The values of the partial energy meters. The instrument displays the energy values corresponding to the following tariffs: t1, t2, t3 and t4 when the digital input mod- ules are present and the instrument is set on “tot prd”. The tariffs are managed by set- ting the digital inputs as shown in the table on page 13.
- Page 6 To begin with When digital input modules are present and the instrument is set on “tot 2.Cn”, it displays the WATER meter m and the GAS m meter. These pages are common to all the settings of the instru- ment. It displays the W active power relating to phase 1.
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Page 7: Programming
Programming If the RS422/485 is present, then “r” means that the instrument is receiving data, while “t” means that the instrument is transmitting data; this confirms that the seri- al module is operating correctly and that the wiring is cor- rect. -
Page 8: Change Password
Programming Change password This function allows you to choose the desired password value (from 0 to 1000). Choose the function “CnG PASS” by means of the keys; then press to modify PASS, enter the desired value by means of the keys and confirm the new value with the key. -
Page 9: Vt Ratio
Programming VT ratio This function allows you to select the VT ratio’s value. Example: if the connected VT primary (volt- age transformer) is 20kV and the secondary is 100V, the VT ratio corresponds to 200 (that is 1.2.. 20000/100). Choose the “Vt ..2.1 rAtio”... - Page 10 Programming If, for example, you select the value 15 minutes, the instrument calculates the dmd value and updates it every 15 minutes. DMD VALUE CALCULATION Where: Pc is the contractual power, t1 is the selected period of demand/integration SYNCHRONISATION OF THE POWER DMD CALCULATION The calculation can be synchronized in two different ways: •...
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Page 11: Access To The Energy Meters Menu
Programming Access to the energy meters menu This function allows the user to choose the parameters for the management of the energy meters. Choose the function “COUntEr” by means of the keys: to confirm the value and enter the submenu press . - Page 12 Programming tot 1.Cn: it enables the combination of total meters and day-time and night-time GAS counters (see also “Display pages” on page 5). Once “PrESCAL C1” has been selected, enter by means of the keys the weight of every pulse of the IN2 digital input of the GAS coun- 1.2..
- Page 13 Programming The increase of the Water, Gas / night tariff gas counters or the change of tariff (t1, t2 t3, t4) is car- ried out thanks to the combination of the input puls- es to the AO2940 digital input module, according to the following table: RESULT INSTRUMENT...
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Page 14: Digital Outputs
Programming Digital Outputs Digital Output 1 This function enables to set the parameters of the open collector digital outputs. Choose “diGout” function by means of the keys, to enter the menu press . Then, you may set the following parameters. ACt EnE: enable the retransmis- sion of the active energy by means of pulses. -
Page 15: Alarm Digital Output
Programming Alarm Digital Output This function allows the user to set the parameters of the alarm digital output relating to the Wdmd variable (Power dmd). Choose the “diGout1- AL dmd” function by means of the 1.2.. keys: to enter the menu press ..2.1 Then, you may set the following parameters. -
Page 16: Digital Output 2
Programming Digital output 2 From Digital output 1, rEn, Pul, SEC page15 ACt EnE: enables the retransmis- sion of the active energy by means of pulses. Confirm with afterwards set the number of pulses (see table on page 19) by means of keys and confirm the value with rEA EnE: enables the retransmis-... -
Page 17: Reset Of Total Meters
Programming Reset of total meters Select “rESEt tot” from the main menu by means of the keys, then confirm with ; when the instrument asks for the reset, you can choose, by means of the keys: - “no tot” to avoid the reset or - “YES tot”... -
Page 18: Useful Information
Useful information How to prevent the programming by key-pad It’s possible to prevent access to programming by modify- ing the dip-switch under slot B. Set dip-switch 1 in ON position to inhibit programming; set dip-switch 1 in OFF position to enable programming again. FREE Access DENIED Access Slot B... -
Page 19: Table Of Open Collector Digital Output Pulses
Useful information the VT because the programming of VT depends on the CT value: if the CT is modified, then the VT value automatical- ly satisfies the expression: CT*VT≤5000. If the CT or VT values are modified, then the display resolution of the vari- ables and of the “pul”... -
Page 20: The "Err" Message
Useful information The “Err” message The instrument takes the measure only for quadrants 1 and 4 (consumed energy). The active energy is obtained by integrat- ing only the sum of the phase active powers on quadrants 1 and 4. Any active powers in quadrants 2 and 3 are forced to zero and the message “Err”... -
Page 21: Digital Alarm Output
Useful information Alarm digital output The activation of the alarm can be up-type or down-type depending on how the ON and OFF parameters have been set, according to the following table: ON-OFF VALUES COMPARAISON O ≥ O < Display of the programming menu It may be useful to underline that the programming menus displayed by the instrument depend on its configuration;... -
Page 22: Installation
Installation How to remove the front cover Press Press Press Press To remove the front cover of EM4-DIN, press contempora- neously the four release levers at the four angles of the instrument as shown above. Auxiliary Module 1 Module 2 power supply Slot A Slot B... -
Page 23: Module Connections
Installation The possible module combinations POWER SUPPLY SELF AUXILIARY MODULE DESCRIPTION SLOT A SLOT A SLOT B AO2900 open collector output AO2900 (pulse, alarm or remote) Relay output + open collector output AO2910 AO2940 digital inputs AR2950 RS422/ 485 Serial port AO2900 AO2910 AO2900... -
Page 24: Module Removal
Installation Removing the modules Slot for the screwdriver Connection label Identification label To remove the modules, use a screwdriver. Insert the screw- driver in the slot on the side of the removable modules, as indicated in the figure above. Use the screwdriver as a lever to take out the module. -
Page 25: Dimensions And Panel Cut-Out For Panel Mounting
Installation Access to programming: ALLOWED. See also “Useful information” on page 18. Slot B To configure the instrument correctly, it is impor- tant to verify that dip-switch 1 is in OFF position. See figure above. WARNING: DANGEROUS VOLTAGES. The con- nectors in the optional slots and the screws of the terminals are live if the instrument or the con- nected load are powered on. -
Page 26: Open Collector Output Connections
Installation Open collector output connections The grounds of the open collector outputs are separate, so that it’s possible to carry out two different connections for the same module. The load resistance (Rc) must have a value the makes the short-circuit current lower than 100mA; the VDC voltage must be lower than or equal to 30V. -
Page 27: Rs422 / 485 Serial Output Connections
Installation Terminal connection Voltage connection RS422/ 485 serial port connections 2-wire connection 4-wire connection The termination of the serial port is carried out only on the last instrument of the network, by means of a jumper connection between (RX-) and (T). The 4- wire connection is recommended since the data, by means of serial port, are exchanged more quickly. -
Page 28: Electrical Diagrams Of 90A Version
Installation 20 (90)A version electrical diagrams Auxiliary power supply Fig. 1: Direct connection with neutral (3-phase system) Unbalanced load Auxiliary power supply Fig. 2: Direct connection without neutral (3-phase system) Unbalanced load Self power supply Fig. 3: Direct connection without neutral (3-phase system) Unbalanced load Note: the neutral in the... -
Page 29: Electrical Diagrams Of 5A Version
Installation Self power supply Fig. 4: Direct connection with neutral (3-phase system) Unbalanced load 5 (10)A version electrical diagrams Auxiliary power supply Fig. 5: Direct connection with/without neutral (3-phase system) Unbalanced load Auxiliary power supply Fig. 6: CT connection with neutral (3-phase system) Unbalanced load Serial port connection... - Page 30 Installation 5 (10)A version electrical diagrams Auxiliary power supply Fig. 7: ARON CT connec- tion without neutral (3-phase system) Unbalanced load Auxiliary power supply Fig. 8: CT (ARON) and VT connection without neutral (3-phase system) Unbalanced load Auxiliary power supply Fig.
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Page 31: Two-Phase Connections
Installation Auxiliary power supply Fig. 10: CT and VT con- nection without neutral (3-phase system) Unbalanced load Auxiliary power supply Fig. 11: CT and VT con- nection without neutral (3-phase system) Unbalanced load 2-phase system Self power supply Fig. 12: 2-phase system Unbalanced load 5A el. -
Page 32: Technical Features
PF 0.5L, PF 0.8C, 0.2Ib to Imax, in the Un range). Energies: (@ 25°C ± 5°C, R.H. ≤ 90%): Class 1 according to EN61036; Class 2 according to EN61268; Ib: 5A, Imax: 10A 0.1Ib: 500mA start-up current: 20mA; Ib: 20A, Imax: 90A 0.1Ib: 2A start- up current: 80mA. - Page 33 Technical features Maximum and minimum indication Max. 19999999 (99999999); Min. 0. Measurements Power, energy, TRMS measurement of distorted waveforms. Coupling: direct. Crest factor Ib 5A: ≤ 3 (15A peak max.). Ib 20A: ≤ 6 (127A peak max.). Current overload 5(10) A, for 10ms: 300A max, at 50Hz.
- Page 34 Technical features AV4-AV5-AV6-AV7: 5(10) A < 0.3VA AV0-AV1-AV3-AV8-AV9: 20(90) A < 4VA Frequency 50 to 60 Hz. Interface modules technical features RS422/RS485 (on request) Module AR2950 Type: bidirectional multidrop (static and dynamic variables) Connections: 2 or 4 wires, max. distance 1200m, termina- tion directly on the instrument.
- Page 35 Technical features 0.01 to 100 pulses programmable depending on the select- ed CT and VT ratios. Output type: open collector (NPN transistor) 1.2 VDC / max. 100 mA; V 30 VDC max. Pulse duration: 220 ms (ON), ≥ 220 ms (OFF) acc. to DIN43864. Alarm output: Number of outputs: 1 Alarm type: up or down.
- Page 36 Technical features Contact reading voltage: 12V < +Aux < 24VDC Logic status: OFF < 2V; ON > 10V. Contact reading voltage: 15mA max. Input impedance: 1kΩ Contact resistance: ≤ 1kΩ close contact, ≥100kΩ open contact Insulation: by means of optocouplers, 2000 V between digital inputs and measuring inputs, 2000 V between...
- Page 37 CISPR 14 and CISPR 22. Pulse voltage (1.2/50µs): 8kV (EN61000-4-5). Standards: Safety: IEC664-1. Metrology: energy measure- ments: EN61036, EN61268; pulse output: DIN43864. Approvals: CE. 5(10) A connections: screw-type, max. cable section 4 mm 20(90) A connections: screw-type, min/max cable section...
- Page 38 Technical features Housing: dimensions 162.5 x 90 x 63 mm; material ABS, NORYL, PC, self-extinguishing: UL 94 V-0. Mounting: DIN-rail and wall mounting. Protection degree: front IP40; connections IP20. Weight: 800 g approx. (packing included). Note: the pictures in the manual refer to an EM4-DIN 5(10)A. Some pictures have been digitally modified and may not correspond to the instrument in all its details.
- Page 39 User’s page Name: ....Surname: ... . . Company name: ....... . EM4-DIN serial number: .
- Page 40 User’s page ..........
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