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CONZERV DigitAN EM6400 Manual

Multifunction load manager
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Summary of Contents for CONZERV DigitAN EM6400

  • Page 1 –––––...

  • Page 2: Table Of Contents

    CONTENTS 1. GENERAL ......................5 1.1. C ..............5 USTOMER ERVICE AND UPPORT 1.2. P ..................5 RODUCT ARRANTY 1.3. L ................5 IMITATION OF ARRANTY 1.4. S ................5 TATEMENT OF ALIBRATION 1.5. D ....................5 ISCLAIMER 2. OVERVIEW ......................7 2.1.
  • Page 3 5.2. C & P PF ................30 ONSUMPTION 5.3. “3D” VA M ................30 EASUREMENT 6. MECHANICAL INSTALLATION..............31 6.1. I ................33 NSTALLATION ROCEDURE 6.1.1. Panel Mounting for New Installations ............ 33 6.1.1.1. Location and Mounting considerations........33 6.1.1.2. Usage ................... 33 6.1.1.3.
  • Page 4 11.9. INTEGRATORS ..................63 11.10. FEATURES ....................64 11.11. COMMUNICATION ................66 11.12. GENERAL....................67 EM 6400 User Manual v03.02. – d12...

  • Page 5: General

    1.2.Product Warranty CONZERV warrants all products to be free from defects in material, workmanship and title and will be of the kind and quality specified in CONZERV’s written description in the manual. The foregoing shall apply only to failures to meet said warranties, which appear within one year from the date of shipping.
  • Page 6 Blank pages for notes EM 6400 User Manual v03.02. – d12...

  • Page 7: Overview

    CONZERV stands behind your EM 6400 DigitAN meter with complete User Support and Service. If the need arises, please do not hesitate to contact us at support@conzerv.com. Figure 2.1: The EM6400 DigitAN - multi-function load manager...

  • Page 8: Physical Description

    2.1.Physical Description FRONT: The front panel has 3 rows of 4 digits / characters each, with auto scaling “K” kilo, “M” Mega and “--” minus indications. The “kilo” and “Mega” indications lit together show Giga readings. The Load bar graph to the right of the display gives the indication of consumption in terms of the % A Load with respect to the FS selected.

  • Page 9: The Indicators

    2.2.1.The Indicators Table 2.1: Kilo, Mega and Negative Indicators Mega: When lit, indicates that the reading is in Mega, (10^6). 10,000 K is shown as 10.00 M. 1.0 M is displayed as 1000 K. When Kilo and Mega are both glowing, the reading is in Giga (10^9). 10,000 M is shown as 10.00 G.
  • Page 10 Up Key: • Scroll up through display pages at the same level, within the same function. • Continuous pressing for 3 seconds initiates limited auto-scroll (within the same function). Press any key to return to manual scrolling. • While editing, increases the value of the blinking digit during edit. Typically while changing the meter setup settings.

  • Page 11: Here's An Example To Try

    2.2.3. Here’s an example to try: Table 2.4: Menu and Display Map Navigation Concept Take a quick look at what the keys do CODE PROG Let us take an example to understand the actions of the front panel keys in the RUN menu. This example will explain how you can navigate from the ‘RMS’...

  • Page 12: Quick Start Guide

    3. Quick Start Guide 3.1.EM 6400 Technical Specs EM 6400 DigitAN series is a high-accuracy, low cost, ultra-compact, power and energy meter that offers ISO 9001 quality, accuracy and functional flexibility and MODBUS RTU communications capability. The standard unit flush-mounts in a DIN 96 cutout and conforms to UL and CE safety requirements.

  • Page 13: Measurements With Em 6400 Digitan Series

    3.1.1.Measurements with EM 6400 DigitAN series The EM 6400 DigitAN can measure, locally display and remotely transfer over MODBUS RTU, the following electrical parameters over the input range with an accuracy of Class 1.0 or better for Volts and Amps, Power and Energy functions, Class 0.5 is optional: Table 2.4a: Measurements with EM 6400 DigitAN series meters Parameters 6459...

  • Page 14: Accuracy

    3.1.1.1.Accuracy Table 2.5: Accuracy Table Class 1.0 (standard) and Class 0.5 (ordering option) Accuracy Measurement Class 1.0 Class 0.5 Voltage LN, per phase Voltage LL, per phase Voltage LN, avg Voltage LL, avg Amp, per phase Amp, avg Amp, phase angle per phase 2º...

  • Page 15: Environmental Conditions

    3.1.5.Environmental Conditions • Sealed dust-proof construction. Meets IP51 for the front panel • Temperature operating: – 10 to 60 °C, (14 to 140 Storage: – 25 to 70 °C, (-13 to 158 • Humidity : Below 5% to 95%, non-condensing 3.1.6.Safety Construction •...

  • Page 16: Display Parameters With The Em 6400 Digitan Meters

    3.2.Display parameters with the EM 6400 DigitAN meters The EM 6400 can measure, locally display and remotely transfer over MODBUS RTU, the following parameters Parameter 6459 6433 6434 6436 6400 NOTE V LL • • • = Standard Features V12 V21 V31 V1 V2 •...

  • Page 17: Keypad Operation

    The EM 6400 displays: • Voltage: Three voltage measurements line-to-line: 1-2, 2-3, 3-1 and average, Three voltage measurements line-to-neutral: 1-4, 2-4,3-4 and average. • Current: Three current measurements phase-wise: 1, 2, 3, one average current of all three phases and three current phase angles A w.r.t.
  • Page 18 Figure 3.1: The Display Flow Chart EM 6400, EM 6434 and EM 6459 v03.02 DIAG PROG SET= This menu has the entire PROG menu. The user programmable parameters are listed here V 12 RMS V LL RUN = This menu has all the display pages. You can scroll through the display pages using the front panel keys RMS = RMS value display pages are in sub level VLL = Phase –...
  • Page 19 -VARh = -ve VAR hours, capacitive Run.h = Run hours, Total hours the load was R.VAh ON, accumulates when the load current is REV = Reverse energy (energy export) R.Wh R.VAh = Volt-ampere hours (export) R.VAR R.Wh = Watt hours (export) -R.VAR R.VAR = VAR hours, inductive (export) -R.VAR = -ve VAR hours, capacitive (export)
  • Page 20 Figure 3.1: The Display Flow Chart EM 6433 v03.02.11 & v03.02.12 DIAG RUN = This menu has all the display pages. You can scroll through Run.h PROG the display pages using the front panel keys RMS = RMS value display pages are in sub level A = Current average W = Watt total A1 = RMS current phase1...
  • Page 21 Figure 3.1: The Display Flow Chart EM 6436 v03.02.11 & v03.02.12 DIAG RUN = This menu has all the display pages. You can scroll through PROG the display pages using the front panel keys RMS = RMS value display pages are in sub level VLL = Phase –...

  • Page 22: Auto-Scroll

    3.3.1.Auto-Scroll Auto-Scroll allows you to monitor a group of Display Pages sequentially, every 5 seconds, without constant key pressing. This is convenient for viewing from a distance. Since the EM 6400 displays the Parameter Name (1 sec) followed by the Value (4 sec) on the same large displays, both are equally readable from a distance.

  • Page 23: Prog Menu - Setup

    3.4.PROG menu – Setup The meter must be set (programmed/configured) to match the application settings, before use. Otherwise, the readings will be wrong. All the Setup values can be re-programmed at any time, upon entering “SET” However, the settings: SYS (Star/wye or Delta), Vpri, Vsec, Apri, Asec critically determine the scaling of measured readings.

  • Page 24: Enter Prog Menu In View (Read - Only) Mode

    3.4.2. Enter PROG Menu in View (read – only) mode CODE PROG CODE FAIL Step1: Go .The display will show “CODE Y” with the “Y” blinking Step2: Go . The display will show “CODE N” with the “N” blinking Step3: Go .to continue with PROG menu entry in view mode Step4: The display shows “FAIL”...

  • Page 25: Entire List Of Prog Menu - Setup Parameters

    4.Entire List of PROG Menu – Setup Parameters SET= This menu has the entire PROG menu. The STAR V.PRI 415.0 user programmable parameters are listed here V.SEC 415.0 V.PRI 415.0 SYS= Power system's configuration*: STAR, DELTA V.SEC 415.0 A.PRI 0100 V.PRI= Voltage primary winding (PT), line-line* Input range: 100 v to 999 kv (415.0) V.SEC...

  • Page 26: Edit Set Parameters In Prog Menu

    4.1.Edit Set Parameters in PROG Menu This example explains how to edit the system type from “STAR” to DELTA” in the PROG Menu of EM 6400 meter. For easy understanding we have explained edit PROG Menu in 2 parts. 4.1.1. Edit and accept setup NOTE: indicates blinking / editable E.g.

  • Page 27: Clear Intg And Md

    4.1.3. Clear INTG and MD EM 6400 series products are equipped with Energy Integrator INTG, where the energy parameters are accumulated. INTG INTG PASS INTG INTG FAIL PASS FAIL Note: INTG Clear – clears both INTG and MD MD Clear – clears only MD INTG Clear Step1: Enter the PROG Menu Step2: When the display shows “RUN”, go .

  • Page 28: Energy Integrator

    4.1.4.Energy Integrator Your EM 6400 meter is equipped with an Energy Integrator function which provides several parameters for Energy Management: VAh, Wh, VARh (Ind), -VARh (Cap), run.h (run hours), on.h (on hours), INTR (Interruptions / outages). A few of these need explanation: run.h: Indicates the period the Load is ON and has run.

  • Page 29: Ac Power Measurement

    5.AC POWER MEASUREMENT This Chapter describes the following: 1. Fundamentals of Three-Phase Measurements 5.1. Three-Phase Systems A three-phase system delivers higher levels of power for industrial and commercial applications. The three phases correspond to three potential lines. A 120° phase shift exists between the three potential lines.

  • Page 30: Consumption & Poor Pf

    5.2.Consumption & Poor PF CONSUMPTION:   W h = W x T,   w here W = instantaneous power T = time in hours The total electric energy usage over a time period is the consumption of Wh. Typically, the unit in which consumption is specified is the kilowatt-hour (kWh): one thousand watts consumed over one hour.

  • Page 31: Mechanical Installation

    6.MECHANICAL INSTALLATION The EM 6400 is panel-mounted and has reliable, rear-mounted terminal strips rated at 600v. The 92 x 92 mm cut-out and 96 x 96 mm bezel dimensions adhere to DIN IEC 61554 and DIN 43700. Depth required behind the Bezel is 80 mm, plus space for wiring. Two side clamps are CAUTION All Installation, wiring and maintenance instructions to be carried out by qualified personnel only.
  • Page 32 RECOMMENDED CUTOUT 92 x 92 mm Not to scale +0.5 EM 6400 User Manual v03.02. – d12...

  • Page 33: Installation Procedure

    Installation, wiring and periodic maintenance, must be done only by qualified personnel. Neither CONZERV nor its agents may be held responsible for damage or death arising out of the wiring and / or PT, CT or other external circuits.

  • Page 34: Viewing

    6.1.1.4.Viewing For ease of operation, in the location should be preferably at, or slightly above, eye-level. For viewing comfort, minimize glare and reflections from strong light sources. 6.1.1.5.Mounting Before mounting and wiring, the Setup procedure (see section 3.2) should have been completed.

  • Page 35: Electrical Installation

    Installation, wiring and periodic maintenance, must be done only by qualified personnel. Neither CONZERV nor its agents may be held responsible for damage or death arising out of the wiring and / or PT, CT or other external circuits.

  • Page 36: Auxiliary (Control) Power Supply

    DANGER voltage greater than the rating marked on the label. The EM 6400 will be permanently damaged and CONZERV’s Warranty shall be void. The EM 6400 DigitAN series meter requires a single-phase ac / dc Auxiliary (control) power supply to power up its internal electronic circuitry. The Setup procedure (Section 3.2) must...

  • Page 37: Voltage Signal Connections

    7.3.Voltage Signal Connections For proper meter operation, the voltage connection must be maintained. The voltage must correspond to the correct terminal. The cable required to terminate the voltage sense circuit should have an insulation rating greater than 600V ac and a current rating greater than 0.1A. There are 4 input voltage terminals marked V1, V2, V3 and Vn.

  • Page 38: Ct Connections

    CAUTION Before wiring, de-energize the CT secondary by shorting it via a shorting block. Under no circumstances must the CT secondary be left open-circuited, even momentarily, when primary current is flowing. This causes high voltages that will overheat and explode the secondary of the CT and damage the instruments as well 7.4.1.CT Connections Mount the current transformers (CTs) as close as possible to the meter for best accuracy.

  • Page 39: Ct Connection Reversal

    7.4.3.CT Connection Reversal To check the polarity of the CT after the meter has been installed, simply look at the phase-wise W (Watt) readings to see that each of the readings are positive (assuming you are consuming power). If one of the W readings is negative, that particular phase CT is reversed and must be corrected. On the other hand if you are exporting power, all three phase-wise W readings must be negative.

  • Page 40: Three Phase 3 Wire Delta

    Figure 6.1: Meter Rear panel 7.7.2.Three Phase 3 Wire Delta With 2 CTs. Direct voltage connections if the input voltage L-L is less than 601V ac. Otherwise, 3 PTs for Closed Delta or 2 PTs for Open Delta. LINE PT (Optional) Other Meters Aux Supply (Control power)

  • Page 41: Three Phase 4 Wire Star (Wye)

    7.7.3.Three Phase 4 Wire Star (Wye) 3 CTs. Direct Voltage Connections if the input voltage L-L is less than 601V ac. Otherwise 3 PTs. LINE L1 L2 PT (Optional) Other Meters Aux Supply (Control power) RS 485 Communication Other Meters (In Series) LOAD Figure 6.3: The Star (Wye) 3phase 4wire Connection...

  • Page 42: Single Phase Connection

    7.7.4.Single phase connection Direct Voltage Connections if Voltages are less than 601V ac L-L. Otherwise use one PT. The unused current terminals must be shorted together. 1.) Program the meter in for STAR mode. However Voltage primary and secondary needs to be programmed as Line to Line. 2.) Connect the voltage and current inputs only to the V1 and A1 voltage and current terminals of the meter.

  • Page 43: Communication Installation

    8.COMMUNICATION INSTALLATION 8.1.RS-485 Each EM 6400 series instruments have a unique address up to three digits long. The range of the instrument address is 1 to 247. This allows the user to communicate with up to 247 instruments on one COM port of the PC. The EM 6400 series works on the Modbus RTU protocol. Under Modbus, each port supports up to 247 instruments.

  • Page 44: Repeaters

    Figure 7.2-: Closed Loop, 2 Wire Half Duplex RS-485 RS-485 Communications Communications Port Port RS 485 Data Converter Figure 7.3: Detail of Closed Loop, 2 Wire Half Duplex 8.2.Repeaters RS-485 transceivers (repeaters) of the half-duplex variety are required for large networks of instruments.

  • Page 45: Factory Settings

    Fig.7.4: Two-Wire RS-485 Communication Installation Connection with Repeaters 8.3.Factory Settings • Communication Protocol: Modbus – RTU o Baud rate: 9600 bps o Data bits: 8 o Stop bits: 1 o Parity: Even • Data type: 32-bit float (real) for all parameters unless otherwise specified. o Except for parameter: INTR (number of interruptions (Outages) in RMS parameter blocks) –...

  • Page 46: Parameters Not Available On Display

    energy management usually requires a block of related readings as of the same point of time. This method also eliminates time-skew within readings of that block. o In transfer of individual data values, it basically treats 2 registers as an object with the starting address (e.g.
  • Page 47 Table 9.1 EM 6436 – EM 6436 – Parameter v03.02.12 & v03.02.02 v03.02.11 V LL • • V12 V21 V31 V1 V2 • • A1 A2 A3 • %L - Amps %Unbal - Amps • • PF1 PF2 PF3 %A FS •...

  • Page 48: Key Factor For Success

    Installation, wiring and periodic maintenance. Neither CONZERV nor its agents may be held responsible for damage or death arising out of the wiring and / or PT, CT or other external circuits.
  • Page 49 d.) With Dual - Range CTs, d.) For dual range CTs do not select the best range for change the range of CTs programming the EM 6400. without re-programming the EM 6400, as the EM 6400 will read erroneous values. e.) Program the selected CT e.) If the CT ratio that you have ratio before you start...
  • Page 50 b.) Use external surge b.) Transients, Surges, Voltage suppressors in the Auxiliary swells affect the components Supply Circuit. of the meter lead to malfunctioning (test severity is over and above the specified limits). External surge suppressors should be used in order to ensure proper operation when the voltage surges exceed the Auxiliary Supply limits.
  • Page 51 b.) Allow clearance if the unit b.) Sufficient spacing will allow is going to swing out, as ease during troubleshooting well as adequate slack in the or change in wiring. wiring. Allow space for terminal blocks, CT shorting blocks, fuses, auxiliary contractors and other necessary components.
  • Page 52 b.) There are three pairs of b.) Failure to connect CTs Current Input terminals properly results in marked A1, A2 and A3. inaccurate power Each pair of input terminal readings. is labelled as (S1, S2) and has an arrow indicating the direction of current flow.
  • Page 53 CONZERV’s warranty shall be void. b.) In order to ensure accurate b.) The “hr”(time of readings of the time of occurrence of Maximum...
  • Page 54 Usage tips EM 6400 b.) If demand is being b.) The demand between EB with demand monitored/controlled in LT meter and CONZERV’s parameters side - consider HT/LT meter may be different. transformer losses, cable loss, meter error, CT error etc., (in the upstream).

  • Page 55: Faq's

    11.FAQ’s 11.1.NOMENCLATURE Parameter Description V12, V23, V31 Line to line Voltages V1, V2, V3 per phase voltages A1, A2, A3 per phase currents V LL Average of line to line voltages PF1, PF2, PF3 Power factor for each phase V LN Average of line to neutral voltages Frequency of the measurement circuit L%1, L%2, L%3...

  • Page 56: Installation

    11.2.INSTALLATION What are the factory default settings of the meter and how change it? If there is no instruction from the customer while ordering, meter will be dispatched with the following default settings SET Parameter Default value StAR V.PRI 415.0 V.SEC 415.0 A.PRI...

  • Page 57: Display Indications

    How to check for wrong connections? These steps are applicable for both Star and Delta systems. 1.) If the current in any phase is reversed (instead of S1 to S2 the connection is S2 to S1), Active power of W1, W2, W3 shows negative. Reverse the current inputs of the phase, which shows the W negative.
  • Page 58 How do I know which is the parameter value currently displayed? Press any one of the 5 keys once; meter will display the parameter name of the current page under display. If none of the keys are pressed and if the auto scroll is also not enabled, then the meter repeatedly displays the current page parameter name (2sec) and value (8sec).

  • Page 59: Setup

    11.4.SETUP What is “PROG” page? How to edit the setup table and clear the integrator? The steps to edit the set-up table and clear integrator are listed below: 1.) Enter into the HOME page (RMS). Press “UP” key once. 2.) Press the “LEFT” key once, CODE “Y” will be displayed. 3.) Enter the password 1000 to enter in the setup.
  • Page 60 11. What does Unbalance (Unb) mean? This is a measure of unbalance between loads of 3phases. 12. What is Eun 1 in the setup table? The 1 three letters shows the selected parity (Eun for even, odd for odd or no for no parity) and the last digit of the same row shows the selected stop bit of the communication.

  • Page 61: Sim (Simulation) Mode

    11.5.SIM (simulation) MODE What is SIM mode and why it is required? Simulation mode is provided for the purpose of demonstration of the features of the meter and in exhibition displays. In this mode user can see the functioning of the meter without any input signals, meter shows fixed Frequency, voltage and current and 0.5PF.

  • Page 62: Turbo Parameters (Favourite

    How to disable the auto scroll? Auto scroll can be disabled by pressing any one of the 5 keys or by interrupting the control power (auxiliary power). What is the time duration between the displays of two consecutive parameters in auto scroll? The time duration between parameter to parameter displays in the auto scroll is 5 seconds (Parameter name is displayed for 1 second + the corresponding value for 4 seconds).

  • Page 63: Integrators

    How to I unlock? Once Display lock is active, press the RIGHT and LEFT key simultaneously to unlock the Key page. Meter displays “ULOC”. 11.9.INTEGRATORS Which parameter is responsible for Integrator reset? By default, the Integrators are reset when the value of Wh reaches the maximum allowable reading (Refer FAQ 2 below).

  • Page 64: Features

    10. What happens to t.run when only voltage circuit is energized and no current through current circuit? t.run works only on the current in the current circuit and hence is not incremented when there is no current in current circuit. 11.
  • Page 65 CLR Maximum Demand CLR the Maximum Demand : Maximum Demand in version 5 can Maximum demand can be cleared be cleared from the front panel CLR independently through the CLR function in the key while viewing the demand (not setup mode. in auto mode) independent of When the Integrator is cleared, Maximum integrator.

  • Page 66: Communication

    Yes, except the DAIG pages and the set up block. Where can I get the Address Map? NOTE: All queries related to Address Map to be transferred to EMS Group at CONZERV. Or feel free to contact at Customer Help Desk.

  • Page 67: General

    11.12.GENERAL How can we find the meter constant? This is not applicable for EM 6000 series products. Meter constant is just a relation between the blinking rate of the POP LED and energy consumption (display reading). For Example: 1000 impulses/ kWh. Generally manufacturers provide POP LED which blink faster than the display / counter update and it is useful where the display is mechanical (impulse or stepper) counter.
  • Page 68 3 for Due to the internal error. If overflow due to which parameter: Available in DAIG6 – Row2. 1 for VAh forward. 2 for Wh forward. 3 for VARh inductive forward. 4 for VARh capacitive forward. 5 for VAh Reverse. 6 for Wh Reverse.
  • Page 69 Warranty 3 3 Year Enhanced Warranty Period ON hours & number of power interruptions EM 6433 and optional for EM6436,EM 6400) Keypad lock ISO 14001:2004 Certified ISO 9001:2000 Certified...
  • Page 70 5A Class 1.0 0.5: 5mA (Starting) to 6A 5A Class 0.5S|0.2S: 5mA (Starting) to 6A 1A Class 0.5S|0.2S: 1mA (Starting) to 1.2A For 5A universal meter additional error of 0.05% of full scale, for meter input current below 100mA User selectable VAh/Wh through setup mode ( EM6436, EM6433)
  • Page 71 LINE L1 L2 LINE PT if Vac LL 601V PT if Vac LL 601V Other Meters Other Meters RS 485 LOAD LOAD RS 485 Communication Communication Other Meters (In Series) Other Meters (In Series) LINE LINE PT if Vac LL 601V Other Meters (In Series)
  • Page 72 Import / Export is optional. Factory EM 6400, EM 6433, EM 6436 is equipped with “3d VA Measurement” capability. This accurately include selectable on order ( For EM 6400 only) Distortion power (D) per IEEE 100, into the VA Calcution (for EM 6400 only)
  • Page 73 ISO 14001:2004 Certified ISO 9001:2000 Certified Products...
  • Page 77 NOTE: indicates blinking / editable VIEW means blinking 1 CODE EDIT 2 000 CODE PASS 1 000 EDIT VIEW MODE MODE EDIT VIEW A.PRI= Current primary winding (CT)* A.PRI A.PRI (100.0) Input range: 1 A to 99 kA 100.0 100.0 EDIT VIEW A.SEC= Current secondary winding (CT) (5.000)
  • Page 78 EDIT EDIT A.PRI A.PRI INTG 220.0 PASS 220.00 INTG EDIT A.PRI 210.0 FAIL INTG EDIT EDIT VIEW A.PRI A.PRI 200.0 200.0 PASS EDIT EDIT EDIT A.PRI A.PRI 100.0 100.0 FAIL NOTE: indicates blinking / editable E.g. 2 means blinking y NOTE: indicates blinking / editable E.g.

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