....................41 ISPLAY .................. 43 ISPLAY MENUS ............. 43 OLTAGE AND CURRENT DATA ................ 44 OWER RELATED DATA ..........46 NERGY AND RUNNING HOUR COUNTERS ................. 47 OWER QUALITY DATA ................48 TATISTICS DATA DEIF A/S Page 2 of 50...
Furthermore, it outlines the overall contents and structure. Warnings and legal information The second chapter includes information about general legal issues and safety precautions relevant in the handling of DEIF products. Furthermore, this chapter will introduce note and warning symbols. DEIF A/S...
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Basic operation Fifth chapter deals with the basic operation of the MIB. Screen dumps are used in order to simplify the information. DEIF A/S Page 4 of 50...
Legal information and responsibility DEIF takes no responsibility for installation or operation of the instrument. If there is any doubt about how to install or operate the instrument, the company responsible for the installation or the operation of the instrument must be contacted.
The notes provide general information, which will be helpful for the reader to bear in mind. Warnings The warnings indicate a potentially dangerous situation, which could result in death, personal injury or damaged equipment, if certain guidelines are not followed. DEIF A/S Page 6 of 50...
MIB is a flexible measuring unit that enables the user to easily adapt the instrument to the individual application. Counter reset and change of the instrument settings can be password protected. The product family includes three versions: • MIB 7000: Basic version • MIB 7000C: Basic version + communication •...
Energy pulse output (only MIB 7020) Energy pulse output (assign to import/export of real and reactive energy). THD (up to 15th harmonics) Voltage/current THD of each phase. Energy Import and export of energy, inductive and capacitive of reactive energy. DEIF A/S Page 8 of 50...
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Installation Instructions and Reference Handbook Alarm Alarm can be related to any metering parameters (see “Digital output” on page 39). Running hour Meters the duration of the operation. Unbalance factor Voltage and current. DEIF A/S Page 9 of 50...
Installation of the MIB will involve working with dangerous currents and voltages. Professionals must handle these areas. If there is any doubt concerning the installation, the person responsible for the power installation should be contacted. Mounting Unit dimensions in mm DEIF A/S Page 10 of 50...
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The unit is designed for flush mounting by means of 4 fixing clips, which are included at delivery. In order to facilitate mounting of the meter and wire arrangement, we recommend a minimum distance of 25mm in front view to other components in the switchboard. DEIF A/S Page 11 of 50...
I31 Current phase 3 in I32 Current phase 3 out V1 Voltage phase 1 V2 Voltage phase 2 V3 Voltage phase 3 Vn Voltage neutral Auxiliary power supply L (+) Auxiliary power supply N (-) Safety earth DEIF A/S Page 12 of 50...
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MIB 7000C Terminal Description number A (Data +) B (Data -) S (Data GND) Digital output terminals (MIB 7020 only) MIB 7020 Terminal Description number DO1 Digital output DO2 Digital output DOC Digital output common DEIF A/S Page 13 of 50...
The wire of the power supply could be AWG22-16 or 0.6-1.3mm . A fuse (typically 1A/250V AC) should be used in the auxiliary power supply loop. For safety reasons we recommend to connect terminal no. 13 to the safety earth systems of switchgear. DEIF A/S Page 14 of 50...
Any voltage mode can be grouped with any of the current modes. The wire of the measuring inputs supply should be 1.5-5mm² (AWG10-16). The voltage measuring inputs should be pro- tected by fuses (1A/250V AC). DEIF A/S Page 15 of 50...
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The 3-phase 4-line Wye mode is popularly used in low voltage electric distribution power systems. The MIB can either be connected directly to the power line, or it can be connected with voltage transformers. DEIF A/S Page 16 of 50...
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3 phases of the power system are in balance. The V2 voltage is calculated from the measured values of V1 and V3. 1LN. 1-phase 2-line This connection is used for measurement on single phase systems. DEIF A/S Page 17 of 50...
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In a 3-phase 3-line system, power lines L1, L2 and L3 are connected to V1, V2 and V3 directly. Vn is floated. The voltage input mode should be set to 3LL. 2LL. 3-phase 3-line open delta Open delta wiring mode is used in some applications. DEIF A/S Page 18 of 50...
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All the current inputs of the 3-phase system can be seen as 3CT one, whether there are 2 CTs or 3CTs on the input side. The current input mode of the MIB should be set to 3CT for both couplings below. DEIF A/S Page 19 of 50...
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This connection with only one current transformer can be used, if the 3-phase system is in full balance. The other two phase currents are calculated according to the expected balance. The current in an N-wire cannot be calculated in this mode. DEIF A/S Page 20 of 50...
When the digital output is used as over/under limit alarm output, high/low limit and alarm time can be set in the system parameter settings. The wire of the digital output should be 0.5-1.5mm² (AWG16-22). DEIF A/S Page 25 of 50...
USB/RS485 or RS232/RS485 converter can be used to convert signal for PC. Use shielded twisted pair of cable AWG22 (0.6mm The shield of the RS485 cable must be connected to the ground at one end only. DEIF A/S Page 26 of 50...
Note: All meters in the same RS485 net should have different addresses according to the Modbus RTU protocol. DEIF A/S Page 27 of 50...
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Example: 380V Note: The display is divided into 2 lines. Count from the arrow in the left hand side. DEIF A/S Page 28 of 50...
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Definition of reactive power (see page 37): Definition setting of reactive power: 0: Sinusoidal reactive power. 1: Budeanu’s reactive power. to increase the digit to decrease the digit to accept changes and move to next screen Example: Sinusoidal reactive power DEIF A/S Page 29 of 50...
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Enable to reset energy data saved in MIB. 1 = enable (possible to reset counters) 0 = disable (impossible to reset counters) to change between 1 and 0 to accept changes and move to next screen Example: Enable DEIF A/S Page 30 of 50...
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Example: Pulse rate is 1 x 0.1KWh (1 pulse/0.1KWh) DEIF A/S Page 32 of 50...
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DO2 output energy parameter: DO2 output can be one of the energy items shown below. to increase the digit to decrease the digit to accept changes and move to next screen Example: DO2 output: no output DEIF A/S Page 33 of 50...
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High alarm: Alarm if input exceeds alarm setpoint. Low alarm: Alarm if input is under alarm setpoint. to increase the digit to decrease the digit to accept changes and move to next screen Example: DO1 = high alarm DEIF A/S Page 34 of 50...
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High alarm: Alarm over the alarm limit. Low alarm: Alarm under the alarm limit. to increase the digit to decrease the digit to accept changes and move to next screen Example: DO2 = high alarm DEIF A/S Page 35 of 50...
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DO2 alarm limit: to move the cursor one digit at a time to increase the digit to decrease the digit to accept changes and move to screen no. Example: DO2 limit 00004500 = 4500 DEIF A/S Page 36 of 50...
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Export energy (exp): “+” is not shown in the display. Reactive energy (kVArh): Reactive energy is time integral of reactive power. The unit is kVArh. Import energy (imp): Capacitive energy. Export energy (exp): Inductive energy. Energy terms are based on the generator method. DEIF A/S Page 37 of 50...
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If another minute passed, the average power of the minute is then 9, then the total power demand of the last three minutes is (14+10+9)/3 = 11 at the end of the 4 minute. DEIF A/S Page 38 of 50...
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Pulse constant is the amount of kWh for each pulse. Pulse width is the time that a pulse lasts. When the accumulated energy reaches the pulse rate value, there will be a pulse on DO. DEIF A/S Page 39 of 50...
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In the expression, the Pmax is the maximum power or reactive power. The unit is kW or kVAr. Recommended pulse rate is 3 to 5 times the right side value of the above expression. DEIF A/S Page 40 of 50...
V/A = volt/ampere. System mode: Press the keys simultaneously to move the cursor one digit at a time to increase the digit to decrease the digit to accept changes and move to next screen DEIF A/S Page 41 of 50...
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Installation Instructions and Reference Handbook Statistic mode: Press the keys simultaneously. DEIF A/S Page 42 of 50...
Screen no. 2 Phase reactive power Q1 Phase reactive power Q2 Phase reactive power Q3 Load nature inductive ► P Screen no. 3 System total power Reactive power Apparent power Load nature inductive ► P DEIF A/S Page 44 of 50...
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Dmd_P Reactive power: Demand Dmd_Q Note: When the voltage wiring of the meter is set to 2LL or 3LL, no phase power, phase reactive power and phase power factor is shown in the display. DEIF A/S Page 45 of 50...
Import energy counter: Ep_imp ► E Screen no. 2 Export energy counter: Ep_exp ► E Screen no. 5 Import reactive energy: Eq_imp ► E Screen no. 6 Export reactive energy counter: Eq_exp ► E DEIF A/S Page 46 of 50...
THD of phase-phase voltage THD_U31 ► H Screen no. 2 THD of phase current THD_I1 THD of phase current THD_I2 THD of phase current THD_I3 ► H to get back to the first screen DEIF A/S Page 47 of 50...
Screen no. 4 changes from max. to min. ►V/A Screen no. 5 Max. value of the current I1_max Max. value of the current I2_max Max. value of the current I3_max ►V/A Screen no. 6 changes from max. to min. ►V/A DEIF A/S Page 48 of 50...
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Screen no. 1 Max. demand Power and reactive power P_Demand_Max=1.435kW Q_Demand_Max=2.478kvar Displays the power quality parameter. ►H Screen no. 1 Unbalance factor of three-phase voltage and current in % Unbl Voltage: 0.3% Unbl Current: 0.5% ►H DEIF A/S Page 49 of 50...
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Harmonic of I1 Harmonic of I2 Harmonic of I3 Load nature inductive Press the H key in turn to display up to 15th current harmonic. DEIF A/S reserves the right to change any of the above DEIF A/S Page 50 of 50...
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