Operating Manual PEM330/PEM333 B B B B Universal measuring device Software version 1.20.

Transcription

1 Operating Manual PEM330/PEM333 B B B B Universal measuring device Software version 1.20.xx PEM330-PEM333_BA_en_D00007_00/

2 Bender GmbH & Co. KG Londorfer Str Gruenberg Germany Postfach Gruenberg Germany Tel.: Fax: Web: Bender GmbH & Co. KG All rights reserved. Reprinting only with permission of the publisher. Subject to change!

3 Table of Contents 1. Making effective use of this document How to use this manual Technical support: Service and support Training courses Delivery conditions, guarantee, warranty and liability Safety Intended use Qualified personnel General safety instructions Device description Area of application Device features Versions PEM PEM PEM PEM Example of application Description of function Front view Rear view PEM330-PEM333_BA_en_D00007_00/

4 Table of Contents 4. Installation and connection Project planning Safety instructions Installing the device Dimension diagrams Front panel mounting Connection of the device Safety information Back-up fuses Connection of measuring current transformers Instructions for connection Wiring diagram Connection diagram voltage inputs Three-phase 4-wire system (TN, TT, IT systems) Three-phase 3-wire system Connection via voltage transformers Digital inputs (PEM333 only) Digital outputs (PEM333 only) Commissioning Check proper connection Before switching on Switching on System integration and visualisation Operation Getting to know the operating elements LC display test Getting to know standard display indications Power and current demand (Demand display) LED indication Standard display PEM330-PEM333_BA_en_D00007_00/

5 Table of Contents 6.7 Data display "SYSTEM" button "PHASE"button "ENERGY" button Setup using the "SETUP" button "SETUP": Meaning of the buttons SETUP: Overview diagram menu Setup: Setting possibilities Application/inputs and outputs Digital inputs (PEM333 only) Digital outputs (PEM333 only) Display Energy pulsing Power and energy Voltage and current phase angles Energy Demand DMD Setpoints Control setpoints (PEM333 only) Digital input and output setpoints (DI setpoint) Event log (SOE log) Power Quality Total harmonic distortion Unbalance PEM330-PEM333_BA_en_D00007_00/

6 Table of Contents 8. Modbus Register Map Basic measuring values Energy measurement Peak demand Total harmonic distortion (THD) and k-factor Setup parameters Event log (SOE log) Time setting DOx control Universal measuring device information Technical data Standards and certifications Ordering information INDEX PEM330-PEM333_BA_en_D00007_00/

7 1. Making effective use of this document 1. 1 How to use this manual This operating manual will concern qualified experts in electrical engineering and user of the product and must be kept ready for referencing in the immediate vicinity of the device. To make it easier for you to understand and revisit certain sections of text and instructions in the manual, we have used symbols to identify important instructions and information. The meaning of these symbols is explained below: Information intended to assist the user to make optimum use of the product are marked with the Info symbol. The warning symbol indicates a potential dangerous situation that may result in bodily injury and/or damage to property. Observe the associated safety instructions. Although great care has been taken in the drafting of this operating manual, it may nevertheless contain errors and mistakes. The Bender Group cannot accept any liability for injury to persons or damage to property resulting from errors or mistakes in this manual. Each of the registered trademarks which appears in this document remains the property of its owner. PEM330-PEM333_BA_en_D00007_00/

8 Making effective use of this document 1. 2 Technical support: Service and support For commissioning and troubleshooting Bender offers you: First Level Support Technical support by phone or for all Bender products All questions about customer applications Commissioning Troubleshooting Tel.: * Fax: only available in Germany: 0700BenderHelp (Tel. and Fax) support@bender-service.com Repair Service Repair, calibration, update and replacement service for all Bender products Repair, calibration, testing and analysing Bender products Hardware and software update for Bender devices Delivery of replacement devices for faulty or incorrectly delivered Bender devices Extended warranty for Bender devices with in-house repair service resp. replacement devices at no extra cost Tel.: ** (technical issues) **, -785** (commercial matters) Fax: repair@bender-service.com Please send the devices for repair to the following address: Bender GmbH, Repair Service Londorfer Strasse Gruenberg Germany 8 PEM330-PEM333_BA_en_D00007_00/

9 Making effective use of this document Field Service On-site service for all Bender products Commissioning, parameter setting, maintenance, trouble shooting for Bender products Analysis of the electrical installation in the building (power quality test, EMC test, thermography) Practical training courses for customers Tel.: **, -762 **(technical issues) ** (commercial matters) Fax: Internet: *Available from 7.00 a.m. to 8.00 p.m. on 365 days of the year (CET/UTC+1) **Mo-Thu 7.00 a.m p.m., Fr 7.00 a.m p.m 1. 3 Training courses Bender would be happy to provide training in respect of the use of the universal measuring device. Current dates of training courses and workshops can be found on the Internet at -> Know-how -> Seminars. PEM330-PEM333_BA_en_D00007_00/

10 Making effective use of this document 1. 4 Delivery conditions, guarantee, warranty and liability The conditions of sale and delivery set out by Bender apply. For software products, the "Softwareklausel zur Überlassung von Standard- Software als Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie" (software clause in respect of the licensing of standard software as part of deliveries, modifications and changes to general delivery conditions for products and services in the electrical industry) set out by the ZVEI (Zentralverband Elektrotechnik- und Elektronikindustrie e.v., the German Electrical and Electronic Manufacturers' association) also applies. Conditions of sale and delivery can be obtained from Bender in printed or electronic format. 10 PEM330-PEM333_BA_en_D00007_00/

11 2. Safety 2. 1 Intended use The universal measuring device PEM330/PEM333 is suitable for the analysis of energy and power monitoring of the power supply quality data recording for energy management As a compact device for front panel mounting, it is a replacement for analogue indicating instruments. The PEM330/PEM333 is suitable for 2, 3 and 4- wire systems and can be used in TN, TT and IT systems. The current measurement inputs of the PEM are connected via external../1 A or../5 A measuring current transformers. In principle, measurements in medium and high voltage systems are carried out via measurement transformers and voltage transformers. Use for the intended purpose also includes: Device-specific settings compliant with local equipment and operating conditions. The observation of all information in the operating manual Qualified personnel Only electrically skilled persons are authorised to install and commission this device. Electrically skilled persons are those who have the relevant education, knowledge and experience, as well as knowledge of the relevant safety standards and who are able to perceive risks and to avoid hazards which electricity can create when work activities are carried out on electrical installations. The electrically skilled person is specially trained for carrying out work activities in his specific working environment and has a thorough knowledge of the relevant standards and regulations. In Germany, an electrically skilled person must meet the requirements of the accident prevention regulation BGV A3. In other countries the applicable regulations have to be observed and followed. PEM330-PEM333_BA_en_D00007_00/

12 Safety 2. 3 General safety instructions Bender devices are designed and built in accordance with the state of the art and accepted rules in respect of technical safety. However, the use of such devices may introduce risks to the life and limb of the user or third parties and/ or result in damage to Bender equipment or other property. Danger of electric shock! Touching live parts will cause danger of electric shock with fatal consequences. All work activities on electrical installations as well as installation activities, commissioning activities and work activities with the device in operation may only be carried out by electrically skilled persons! Only use Bender equipment: as intended in perfect working order in compliance with the accident prevention regulations and guidelines applicable at the location of use Eliminate all faults immediately which may endanger safety. Do not make any unauthorised changes and only use replacement parts and optional accessories purchased from or recommended by the manufacturer of the equipment. Failure to observe this requirement can result in fire, electric shock and injury. Information plates must always be clearly legible. Replace damaged or illegible plates immediately. If the device is overloaded by overvoltage or a short-circuit current load, it must be checked and replaced if necessary. If the device is being used in a location outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with. European standard EN can be used as a guide. 12 PEM330-PEM333_BA_en_D00007_00/

13 3. Device description 3.1 Area of application For humans, electric current is not immediately visible. Universal measuring devices for monitoring electrical parameters are used wherever energy consumption, performance measurements or the quality of the supply voltage are to be made visible. The PEM330/PEM333 is suitable for monitoring: power generation systems (PV systems, CHPs, hydro power and windpower plants) energy-intensive equipment and parts of installation sensitive equipment 3.2 Device features The universal measuring device PEM330/PEM333 for power quality and energy management is characterised by the following features: Accuracy class in accordance withiec : 0.5 S Programmable setpoints (PEM333 only) LED pulse outputs for active and reactive energy Modbus RTU communication via RS-485 (PEM333 only) 2 digital outputs (PEM333 only) Demands of power and current for particular time frames Peak demands with timestamps Measured quantities Phase voltages U L1, U L2, U L3 in V Line-to-line voltages U L1L2, U L2L3, U L3L1 in V Phase currents I 1, I 2, I 3 in A Neutral current (calculated) I 4 in A Frequency f in Hz Phase angle for U and I in Power per phase conductor S in kva, P in kw, Q in kvar PEM330-PEM333_BA_en_D00007_00/

14 Device description Total power S in kva, P in kw, Q in kvar Displacement factor cos (φ) Power factor λ Active and reactive energy import in kwh, kvarh Active and reactive energy export in kwh, kvarh Voltage unbalance in % Current unbalance in % Total harmonic distortion (THD) for U and I k-factor for I 3.3 Versions PEM330 Current input 5 A PEM Current input 1 A PEM333 Current input 5 A Communication interface 2 digital inputs and outputs Programmable setpoints PEM Current input 1 A Communication interface 2 digital inputs and outputs Programmable setpoints 14 PEM330-PEM333_BA_en_D00007_00/

15 Device description 3.4 Example of application PEM7xx U I PEM7xx U I Ethernet Datenbank L PEN Modbus TCP Modbus TCP NSHV CP700 PE PAS BMS 1 12 PEM5xx U I PEM5xx U I Modbus RTU RCMS Modbus TCP Modbus RTU Modbus TCP Modbus RTU 1 12 L N PE UV1 UV2 RCMS 3 3 PEM3xx U PEM3xx U I I Modbus RTU Modbus RTU Fig. 3.1: Example of application PEM330-PEM333_BA_en_D00007_00/

16 Device description 3.5 Description of function The digital universal measuring device PEM330/PEM333 is suitable for measuring and displaying electrical parameters of electricity networks. The device measures current, voltage, energy consumption and power as well as the total harmonic distortion for assessment of the voltage and current quality. The accuracy of the active energy metering corresponds to class 0.5 S in compliance with the DIN EN (VDE 0418 Part 3-22): The large display of the panel mounting device makes the relevant measured quantities easily legible and enables fast configuration. In addition, the RS- 485 interface* allows a central evaluation and processing of data. Switching operations can be monitored or initiated via the digital inputs and outputs (Example: Switching off uncritical loads if the peak load limit value is exceeded). The universal measuring device PEM330/PEM333 provides the following functions: Provision of energy consumption data for a well-thought-out energy management Allocation of energy costs Power quality monitoring for cost reduction and increased plant availability *) PEM333 only 16 PEM330-PEM333_BA_en_D00007_00/

17 Device description 3.6 Front view 3.7 Rear view Fig. 3.2: Front view PEM330/PEM333 The connecting terminals are located on the rear. P1(RS-485) D+ D- SH DO DO DO DO DI1 DI2 DIC A2/ - A1/ + l11 l12 l21 l22 l31 l32 L1 L2 L3 N Fig. 3.3: Rear view PEM330/PEM333 PEM330-PEM333_BA_en_D00007_00/

18 Device description 18 PEM330-PEM333_BA_en_D00007_00/

19 4. Installation and connection 4.1 Project planning For any questions associated with project planning, please contact Bender: Internet: Tel.: Safety instructions Only electrically skilled persons are allowed to connect and commission the device. Such persons must have read this manual and understood all instructions relating to safety. Danger of electric shock! Follow the basic safety rules when working with electricity. Consider the data on the rated voltage and supply voltage as specified in the technical data! PEM330-PEM333_BA_en_D00007_00/

20 Installation and connection 4.3 Installing the device Dimension diagrams Fig. 4.1: Dimension diagram PEM330/PEM333 (front view) Fig. 4.2: Dimension diagram PEM330/PEM333 (side view) 20 PEM330-PEM333_BA_en_D00007_00/

21 Installation and connection Fig. 4.3: Dimension diagram PEM330/PEM333 (panel cut-out) Front panel mounting A front panel cutout of 92 mm x 92 mm is required for the device. 1. Fit the device through the cut-out in the front panel. 2. Put the 4 transparent mounting brackets from behind on the edges of the device. 3. Push the clips tightly against the panel to secure the device. 4. Check the device to ensure that it is firmly installed in the front panel. The device is installed. 4.4 Connection of the device Safety information Danger of electric shock! Follow the basic safety rules when working with electricity. Consider the data on the rated voltage and supply voltage as specified in the technical data! PEM330-PEM333_BA_en_D00007_00/

22 Installation and connection Back-up fuses Back-up fuse supply voltage: 6 A Short-circuit protection Protect the measuring inputs according to the requirements of the standards. A suitable separator must be provided in order to switch off the power. For details refer to the operating manuals of the measuring current transformers currently used. If the supply voltage U s is supplied by an IT system, both phase conductors are to be protected Connection of measuring current transformers When connecting the measuring current transformers, the requirements of DIN VDE (VDE ) Errichten von Niederspannungsanlagen (Low-voltage electrical installations) - Teil (Part) 5: Auswahl und Errichtung elektrischer Betriebsmittel (Selection and erection of electrical equipment) - Abschnitt (Clause) 557: Auxiliary circuits 4.5 Instructions for connection Connect the PEM330/PEM333 to the supply voltage (terminals A1 and A2 resp. +/-). Connect terminal " " to the protective conductor. Power protection by a 6 A fuse, quick response. If being supplied from an IT system, both lines have to be protected by a fuse. Connection to the RS-485-Bus is made via the terminals D+, D- and SH. Up to 32 devices can be connected to the bus. The maximum cable length for the bus connection of all devices is 1200 m. 4.6 Wiring diagram Connect the device according the wiring diagram. The connections are located on the rear of the device. 22 PEM330-PEM333_BA_en_D00007_00/

23 Installation and connection 1 P1(RS-485) DO DO DO DO D+ D- SH DI1 DI2 DIC A2/ - A1/ + U S 2 DI 3 l11 l12 l21 l22 l31 l32 L1 L2 L3 N DI1 DI2 DIC 6 I12 I11 I21 I22 I31 I32 L1 L2 DO13 DO23 DO DO14 DO24 4 L3 5 N L1 L2 L3 N Legend to wiring diagram 1 Connection RS-485 bus Fig. 4.4: Wiring diagram Supply voltage. Power protection by a 6 A fuse, quick response. If being supplied from an IT system, both lines have to be protected by a 2 fuse. 3 Digital inputs 4 - Digital outputs (N/O contacts) 5 Measuring voltage inputs 6 - Connection to the system to be monitored: The measuring leads should be protected with appropriate fuses. PEM330-PEM333_BA_en_D00007_00/

24 Installation and connection 4.7 Connection diagram voltage inputs Three-phase 4-wire system (TN, TT, IT systems) The PEM can be used in three-phase 4-wire systems, independent of the type of distribution system (TN, TT, IT system). AC 400 V / 230 V L1 L2 L3 N PEM R i Fig. 4.5: Connection diagram three-phase 4-wire system (e.g. TN-S system) Three-phase 3-wire system The PEM can be used in three-phase 3-wire systems. The line-to-line voltage must not exceed AC 400 V. AC 400 V L1 L2 L3 PEM R i Fig. 4.6: Connection diagram three-phase 3-wire system 24 PEM330-PEM333_BA_en_D00007_00/

25 Installation and connection Connection via voltage transformers The coupling via measuring voltage transformers allows the use of a measuring device in medium and high voltage systems. The transformation ratio in PEM330/PEM333 can be adjusted (1 2200). LV / MV / HV L1 L2 L3 N PEM R i Fig. 4.7: Connection diagram 3-wire system PEM330-PEM333_BA_en_D00007_00/

26 Installation and connection 4.8 Digital inputs (PEM333 only) The universal measuring device PEM333 provides 2 digital inputs. The inputs are supplied by a galvanically isolated DC 24 V voltage. Through an external wiring a current of at least I min > 2.4 ma must flow in order to trigger the inputs. DI1 DI2 DIC 4.9 Digital outputs (PEM333 only) The universal measuring device PEM333 features 2 configurable outputs (N/O contact). DO13 DO14 DO23 DO24 Rated operational voltage AC 230 V DC 24 V AC 110 V DC 12 V Rated operational current 5 A 5 A recommended. 5 A 26 PEM330-PEM333_BA_en_D00007_00/

27 5. Commissioning 5.1 Check proper connection During installation and connection, abide by the relevant standards and regulations and follow the operating manuals for the device. 5.2 Before switching on Before switching on think carefully about these questions: 1. Does the connected supply voltage US correspond to the nameplates information? 2. Is the nominal system voltage of the measuring current transformer not exceeded? 3. Does the measuring current transformer's maximum current correspond to the nameplate information of the connected device? 5.3 Switching on After switching on, proceed as follows: 1. Connect the supply voltage. 2. Set the bus address/ip address. 3. Set the CT transformer ratio (for each channel). 4. Change the measuring current transformer's counting direction, if required. 5. Set the nominal voltage. 6. Select wye connection or delta connection. PEM330-PEM333_BA_en_D00007_00/

28 Commissioning 5.4 System integration and visualisation The universal measuring device PEM333 can be parameterised and queried via Modbus-RTU. For details refer to Chapter 8. Modbus Register Map or to the internet In addition, it can be incorporated into Bender's own BMS (Bender measuring device interface) bus protocol via additional communication modules. This allows communication with Bender devices (already existing) to realise device parameter setting and visualisation of measuring values and alarms. Examples and information about system integration you will find on our homepage or you can personally discuss it with Bender service experts (see 1. 2 Technical support: Service and support ). 28 PEM330-PEM333_BA_en_D00007_00/

29 6. Operation 6.1 Getting to know the operating elements Legend to operating elements Fig. 6.1: Operating elements No. Element Description 1 LED "kwh" 2 LED "kvarh" 3 LC display 4 5 "SYSTEM" button "PHASE" button Pulse output, see 6.5 LED indication, page 34 Display mean value and total value (current, voltage) in the menu: in case of numerical values: move the cursor one position to the left Display line-conductor related measured quantities in the menu: go up one entry in case of numerical values: increasing the value PEM330-PEM333_BA_en_D00007_00/

30 Operation 6 7 "ENERGY" button "SETUP" button OK Display measured values: Active and reactive energy import/active and reactive energy export (line 4) in the menu: move down one entry in case of numerical values: reduce the value Press > 3 s: switching between setup menu and standard display in the menu: selection of the parameter to be edited confirm entry 6.2 LC display test Simultaneously press the "PHASE" and "ENERGY" buttons for > 2 seconds enters the LCD testing mode. During testing, all LCD segments are illuminated for one second and then turned off for 1 second. This cycle will be repeated 3 times. After completion of the test run, the device automatically returns to its normal display mode. Fig. 6.2: Display during an LCD test 30 PEM330-PEM333_BA_en_D00007_00/

31 Operation 6.3 Getting to know standard display indications The display is divided into five areas Fig. 6.3: Display areas Legend to the display areas 1 Measured values 2 Measurement units 3 4 Displays the indicators for digital inputs and outputs (DI status, DO status), total harmonic distortion THD, unbalance (unb), quadrant (see page 32) Displays energy information such as active energy import and export and reactive energy import and export and apparent energy 5 Symbols (see page 33 for explanation) PEM330-PEM333_BA_en_D00007_00/

32 Operation Description of the default display screens (segments 3-5 ) Area Segments Symbol description DI open DO open DI closed DO closed 3 Total harmonic distortion Unbalance Quadrant Alarm symbol 4 Indicator apparent energy Export indicator (active and reactive energy) 32 PEM330-PEM333_BA_en_D00007_00/

33 Operation Area Segments Symbol description Phase voltage Line-to-line voltage Neutral current (I 4 ) Voltage-/current unbalance Demand 5 Displacement factor Total harmonic distortion U L1/L2/L3 (THD) Total harmonic distortion I 1/2/3 (THD) k-factor Phase angle U L1/L2/L3 Phase angle I 1/2/3 Tab. 6.1: Standard display indications PEM330-PEM333_BA_en_D00007_00/

34 Operation 6.4 Power and current demand (Demand display) The demands are indicated on the display according to the following scheme: 2 1 Fig. 6.4: Display: peak demand 1 Demand displays: A: I 1 B: I 2 C: I 3 P: Active power demand P q: Reactive power demand Q S: Apparent power demand S 2 Peak demand value 6.5 LED indication The universal measuring device features two red LEDs on its front panel: "kwh" and "kvarh". The two LED indicators are used for the indication of kwh and kvar, if the EN PULSE function is enabled. The setting can be carried out in the setup menu using the buttons on the front or via the communication interface 34 PEM330-PEM333_BA_en_D00007_00/

35 Operation (PEM333 only). The frequency of flashing per energy amount can be set using the pulse constant (EN CONST). In order to determine the actual amount of energy, the flashing frequency can be calculated from the CT ratio and the pulse constant. 6.6 Standard display The universal measuring device automatically shows the default display screen, if there is no button pressed for 3 minutes. First line second line third line 6.7 Data display Fig. 6.5: Standard display There are three buttons that are used to indicate the measured data: "SYS- TEM", "PHASE" and "ENERGY". The following tables illustrate how to retrieve individual values. PEM330-PEM333_BA_en_D00007_00/

36 Operation "SYSTEM" button Column left LL Ln I 4 Column right A W PF V kvar Hz kw kvar kva V A kw A I4 First line Second line Third line Ø I P ges Power factor λ Ø U LL Q ges F P ges Q ges S ges Wye connection: Ø U LN Delta connection: Ø I P ges Ø U LL U I D M D D M D % % A A A kw kvar kva Unbalance U Unbalance I Demand I 1 Demand I 2 Demand I 3 Demand P Demand Q Demand S Tab. 6.2: Data display screens via "SYSTEM" button 36 PEM330-PEM333_BA_en_D00007_00/

37 Operation "PHASE"button Column left Ln Ln Ln LL LL LL D P F U t Column right A A A V V V V V V kw kw kw var var var kva kva kva PF PF PF PF PF PF % % % First line Second line Third line I1 I2 I3 U L1 * U L2 * U L3 * U L1L2 U L2L3 U L3L1 P L1 * P L2 * P L3 * Q L1 * Q L2 * Q L3 * S L1 * S L2 * S L3 * λ L1 * λ L2 * λ L3 * Displacement factor cos (φ) L1 * Displacement factor cos (φ) L2 * Displacement factor cos (φ) L3 * THD U L1 THD U L2 THD U L3 PEM330-PEM333_BA_en_D00007_00/

38 Operation Column left I t Column right % % % First line Second line Third line THD I 1 THD I 2 THD I 3 K F k-factor I 1 k-factor I 2 k-factor I 3 U Phase angle U L1 Phase angle U L2 Phase angle U L3 I Phase angle I 1 Phase angle I 2 Phase angle I 3 Tab. 6.3: Display screens via "PHASE" button Note: * In "delta connection" mode the display shows " " "ENERGY" button Parameters in the fourth line: Column left Column right Value kwh Active energy import -- kwh Active energy export kvarh Reactive energy import -- kvarh Reactive energy export S Apparent energy Tab. 6.4: Display screens via "ENERGY" button 38 PEM330-PEM333_BA_en_D00007_00/

39 Operation 6.8 Setup using the "SETUP" button Press the "SETUP" button for more than 3 s to access the setup mode. Press the "SETUP" button again to return to the default display screen. To be able to change parameters, you must first enter the password. (factory setting: 0) "SETUP": Meaning of the buttons The meanings of the buttons in the SETUP mode are below each button: "SETUP" Enter button: to confirm the value entered "PHASE" Arrow button " ": Advances to the next parameter in the menu or increments a numeric value "ENERGY" Arrow button " ": Goes back to the last parameter in the menu or decrements a numeric value. "SYSTEM" Arrow button " ": moves the cursor to the left by one position if the parameter being changed is a numeric value PEM330-PEM333_BA_en_D00007_00/

40 Operation SETUP: Overview diagram menu The following diagram will help you to familiarise yourself with the menu: Serial number of device info INFO Date of software update UPDATE set backlight time out BLTO SET OK Protocol version Software Version PRO VER SW-VER choose CT direction CT REV set I 3 CT polarity I3 REV OK set I 2 CT polarity I2 REV set I 1 CT polarity I1 REV * set DO triggered mode DO CTRL clear SOE CLR SOE OK set DO2 control mode set DO1 control mode DO2 DO1 clear peak demand CLR DMD clear energy CLR ENGY set energy pulse constant EN CONST enable energy pulse EN PULSE set no. of sliding windows NUM set demand DMD SET OK set demand period PERIOD set apparent energy kvah set reactive energy export -kvarh set energy values SET ENGY set reactive energy import kvarh set clock set date CLK DATE OK set active energy export set active energy import -kwh kwh * set configuration parity bit CONFIG * set baud rate BAUD * set address for measuring device ID choose kva calcuation method KVA SET choose power factor convention PF SET select current transformer ratio select transformer ratio for the voltage transformer CT PT set wiring mode TYPE change password SET PASS OK enter new password NEW PASS enter password PASSWORD OK Setup menu PROGRAMMING OK Fig. 6.6: Setup: Setting possibilities * PEM333 only Button 40 PEM330-PEM333_BA_en_D00007_00/

41 Operation 6.9 Setup: Setting possibilities The table represents the messages indicated on the display, their meaning and their setting possibilities. Display entry Level 1 Parameters Level 2 Description Setting options Factory setting PROGRAMMING PASSWORD SET PASS TYPE PT CT PF SET KVA SET ID NEW PASS Password New password Power factor convention Address for measuring device Setup mode Enter password Change password? Enter new password Select type of connection Select transformer ratio for the voltage transformer Select CT transformer ratio / 0 YES/NO WYE/DELTA/ DEMO No WYE ,000 (1 A) 1 6,000 (5 A) 1000 Power factor convention *** IEC/IEEE/IEEE IEC S calculation method * V/S V Set address for measuring device PEM330-PEM333_BA_en_D00007_00/

42 Operation Display entry Level 1 Parameters Level 2 Description Setting options Factory setting Baud Baud rate Set baud rate CONFIG DATE CLK SET ENGY kwh -kwh kvarh -kvarh Comm. port configuration Date Time Presetting of energy values Active energy import Active energy export Reactive energy import Reactive energy export kvah Apparent energy Configuration parity bit Setting the date Setting the time Presetting of energy values Presetting of active energy import Presetting of active energy export Presetting of reactive energy import Presetting of reactive energy export Presetting of apparent energy 1200/2400/ 4800/9600/ bps 8N2/8O1/8E1/ 8N1/8O2/8E2 YY-MM-DD / HH:MM:SS / YES/NO 0 99,999, ,999, ,999, ,999, ,999, E1 No PEM330-PEM333_BA_en_D00007_00/

43 Operation Display entry Level 1 Parameters Level 2 Description Setting options Factory setting DMD SET EN PULSE EN CONST CLR ENGY CLR DMD CLR SOE DO CTRL PERIOD NUM Demand measurement Measuring time of defined length Number of sliding windows Energy Pulsing Pulse constant Clear energy values Clear peak demand Clear event memory Trigger mode for digital outputs Demand measurement on/off YES/NO Specify the time for demand measurement Set the number of sliding windows Activate kwh and kvar energy pulsing Number of LED pulses per amount of energy Clear kwh, kvar and kvah NO 1, 2, 3, 5, 10, 15, 30, 60 (minutes) YES/NO 1K, 3.2K, 5K, 6.4K**, 12.8K** YES/NO Clear peak demand values YES/NO Clear event memory Change trigger mode for digital outputs YES/NO YES/NO NO 1K NO NO NO NO PEM330-PEM333_BA_en_D00007_00/

44 Operation Display entry Level 1 Parameters Level 2 Description Setting options Factory setting CT REV BLTO SET DO1 Operating mode DO1 DO2 Operating mode DO2 Select CT direction I1 REV I 1 CT I2 REV I 2 CT I3 REV I 3 CT Display lighting Set operating mode DO1 Set operating mode DO2 Change CT direction I 1 Change CT polarity I2 Change CT polarity I 3 Change CT polarity Time duration until the display gets dark NORMAL/ON/ OFF NORMAL/ON/ OFF YES/NO YES/NO YES/NO YES/NO 0 59 (minutes) INFO Information read only YES/NO NO SW-VER Software version / / Protocol version PRO VER 50 means V5.0 / / Date of software update jjmmtt / UPDATE / Serial number Serial number device / / NORMAL NORMAL NO No NO No 3 Tab. 6.5: Setup: Setting possibilities 44 PEM330-PEM333_BA_en_D00007_00/

45 Operation Comments on the table above * There are various types of calculating the apparent power S: Vektormethode V: Skalarmethode S: S ges = P ges 2 + Q ges 2 S ges = S L1 + S L2 + S L3 The calculation method can be selected: V = vector method S = scalar method ** PEM33x-251 only PEM330-PEM333_BA_en_D00007_00/

46 Operation *** Power factor λ conventions Reactive power import Quadrant 2 Power factor (-) Active power export (-) Reactive power import (+) Quadrant 1 Power factor (+) Active power import (+) Reactive power import (+) Active power import Quadrant 3 Power factor (-) Active power export (-) Reactive power export (-) Quadrant 4 Power factor (+) Active power import (+) Reactive power export (-) IEC Reactive power import Quadrant 2 Power factor (+) Active power export (-) Reactive power import (+) Quadrant 1 Power factor (-) Active power export (+) Reactive power import (+) Active power import Quadrant 3 Power factor (-) Active power export (-) Reactive power export (-) Quadrant 4 Power factor (+) Active power import (+) Reactive power export (-) IEEE 46 PEM330-PEM333_BA_en_D00007_00/

47 7. Application/inputs and outputs 7.1 Digital inputs (PEM333 only) The device features two digital inputs that are internally operated with DC 24 V. Digital inputs are typically used for monitoring external states. The switching states of the digital inputs can be read from the LC display or from connected system components. Changes in external states are stored as events in the SOE log in 1 ms resolution. 7.2 Digital outputs (PEM333 only) The device features two digital outputs. Digital outputs are typically used for setpoint trigger, load control or remote control applications. Examples: 1. Available via the buttons on the front panel (see 6.8 Setup using the "SETUP" button) 2. Operation via communication interface (PEM333 only) 3. Control setpoints: Control actions in case of setpoint exceedance (7.5.1 Control setpoints (PEM333 only)) 7.3 Display Energy pulsing The two LED pulse outputs are used for kwh and kvarh indication, if the function EN PULSE is enabled. The setting can be carried out in the Setup menu using the buttons on the front or via the communication interface (PEM333 only). The LEDs flash each time a certain amount of energy is measured (1 kwh resp. 1 kvarh). PEM330-PEM333_BA_en_D00007_00/

48 Application/inputs and outputs 7.4 Power and energy Voltage and current phase angles Phase analysis is used to identify the angle relationship between the threephase voltages and currents Energy Basic energy parameters include Active energy (import and export in kwh) Reactive energy (import and export in kvar) Apparent energy (S ges in kvah) The maximum value to be displayed is ± 99,999, When the maximum value is reached, the energy register will automatically roll over to zero. The energy register can be edited via software (PEM333 only) and the buttons on the front panel, password required Demand DMD Demand is defined as the approximate average power consumption over a fixed interval. The following values are determined: Active power P Apparent power S Reactive power Q I1 I2 I3 The time specified for measuring can be set using the buttons on the front panel or via the communication interface. The following options are available: 1, 2, 3, 5, 10, 15, 30, 60 minutes During the selected measuring period, the power consumption resp. the imported power is measured. Then the average demand value is indicated on the display and output via the communication interface. 48 PEM330-PEM333_BA_en_D00007_00/

49 Application/inputs and outputs The maximum demand value determined over the whole recording period (peak demand) will be saved and displayed. The peak demand can be reset manually. Setting options see 6.9 Setup: Setting possibilities. 7.5 Setpoints The device provides two different types of setpoints: 1. Control setpoints for general purpose controlling and alarming applications 2. Digital input and output setpoints: Provides control output actions in response to changes in digital input status Control setpoints (PEM333 only) The device features 6 user programmable control setpoints which provide extensive control by allowing a user to initiate an action in response to a specific condition. The alarm symbol at the bottom of the LC display appears if there are any reached/active control setpoints. When the setpoint is reached it will typically result in alarming and fault detection. Setpoints are programmed via the communication interface and have the following setup parameters: PEM330-PEM333_BA_en_D00007_00/

50 Application/inputs and outputs 1. Setpoint type: specifies the parameters to be determined and the setpoint type (limit value exceeded/below limit value). The following settings are possible: Setpoint type Values exceeded Value below limit Parameters Phase voltage (V) Mains voltage (V) I (A) P ges (kw) Q ges (kvar) Phase voltage (V) Mains voltage (V) Power factor λ ( 1000) 2. Setpoint limit: Specifies the value that the setpoint parameter must go below or exceed for the setpoint to become active. Returns to normal condition in case of: the limit value is exceeded 0.95 x setpoint limit the value is below the limit value: 1.05 x setpoint limit 3. Setpoint delay: Specifies the minimum duration which the setpoint condition must be met before the setpoint becomes active or which the setpoint return condition must be met before the setpoint becomes inactive. An event will be generated and stored in the SOE Log for any setpoint status changes. The range of the setpoint delay is between 0 and 9,999 seconds. 4. Setpoint trigger: Specifies what action the setpoint will take when it becomes active. This action includes "No Trigger" and "Trigger DOx" Digital input and output setpoints (DI setpoint) The digital input setpoints are used to monitor external states and provide alarming and control capability in response to the external status becoming active. The digital input setpoints can be programmed using the buttons on the front panel or via the communication interface. 50 PEM330-PEM333_BA_en_D00007_00/

51 Application/inputs and outputs DI setpoints Digital output DO1 Action Reset Tab. 7.1: Different behaviour of the two digital outputs 7.6 Event log (SOE log) Digital output DO2 1) DO1 closes when the associated DI setpoint becomes active ated DI setpoint becomes active 1) DO2 closes when the associ- for a duration longer than 100 ms. for a duration longer than 100 ms. 2) An event is generated and 2) An event is generated and stored in the SOE log. stored in the SOE log. 1) The associated digital input becomes inactive. 2) DO1 must be reset manually using the "SYSTEM" button (> 3 s) or via communication interface. 1) The associated digital input becomes inactive. 2) DO2 would automatically open 1 second later. The device can store up to 32 events. If there are more than 32 events, the newest event will replace the oldest event on a first-in-first-out basis: The 33rd event overwrites the first entry, the 34th the second etc. Possible events: Failure supply voltage Setpoint status change Relay actions Digital input status changes Setup changes Each event record includes the event classification, the relevant parameter values and a timestamp of 1 ms resolution. All event records can also be retrieved via communication interface (PEM333 only). The event log can be cleared using the buttons on the front panel or via communication interface (PEM333 only). PEM330-PEM333_BA_en_D00007_00/

52 Application/inputs and outputs 7.7 Power Quality Total harmonic distortion The device provides an analysis of the total harmonic distortion.all parameters can be read from the display or are available via communication interface (PEM333 only). The following parameters are provided: Total harmonic distortion U L1 Total harmonic distortion UL1 Total harmonic distortion U L3 Harmonics Total harmonic distortion I 1 Total harmonic distortion I2 Total harmonic distortion I3 k-factor I 1 k-factor I 2 k-factor I Unbalance The device can measure voltage and current unbalance. The following calculation method is applied: Voltage unbalance = [ U L1 Ø U, U L2 Ø U, U L3 Ø U ] max Ø U x 100 % Current unbalance = [ I 1 Ø I, I 2 Ø I, I 3 Ø I ] max Ø I x 100 % Note: Ø means the average value 52 PEM330-PEM333_BA_en_D00007_00/

53 8. Modbus Register Map This chapter provides a complete description of the Modbus register map (protocol version 6.0) for the PEM330/PEM333 series, to facilitate accessing information. In general, the registers are implemented as Modbus Read Only Registers (RO = read only) with the exception of the DO control registers, which are implemented as Write Only Registers (WO = write only). PEM330/PEM333 supports die 6-digit addressing scheme and the following Modbus functions: 1. Holding Register to read out values (Read Holding Register; function code 0x03) 2. Register for setting the DO status (Force Single Coil; function code 0x05) 3. Register for device programming (Preset Multiple Registers; function code 0x10) The register addresses are listed without the Modbus Address prefix (4 for Holding Register; 0 for Coil Register). For a complete Modbus protocol specification, please visit Basic measuring values Register Property Description Format Scale/ unit RO U 1) L1 UINT32 100, V ( RO 1) U L2 UINT32 100, V RO 1) U L3 UINT32 100, V RO Ø U LN UINT32 100, V PEM330-PEM333_BA_en_D00007_00/

54 Modbus Register Map Register Property Description Format Scale/ unit RO U L1L2 UINT32 100, V RO U L2L3 UINT32 100, V RO U L3L1 UINT32 100, V RO Ø U LL UINT32 100, V RO 1) I 1 UINT , A RO 1) I 2 UINT , A RO 1) I 3 UINT , A RO Ø I UINT , A RO 1) P L1 INT , kw RO 1) P L2 INT , kw RO 1) P L3 INT , kw RO P ges INT , kw RO Q 1) L1 INT , kvar RO 1) Q L2 INT , kvar RO 1) Q L3 INT , kvar 54 PEM330-PEM333_BA_en_D00007_00/

55 Modbus Register Map Register Property Description Format Scale/ unit RO Q ges INT , kvar RO S 1) L1 INT , kva RO 1) S L2 INT , kva RO 1) S L3 INT , kva RO S ges INT , kva RO 1) λ L1 INT , RO 1) λ L2 INT , RO 1) λ L3 INT , RO λ ges INT , RO F UINT16 100, Hz RO I4 UINT32 x1000, A RO Voltage unbalance UINT16 x RO Current unbalance UINT16 x RO Displacement factor L1 INT16 x1000 PEM330-PEM333_BA_en_D00007_00/

56 Modbus Register Map Register Property Description Format Scale/ unit RO Displacement factor L2 INT16 x RO Displacement factor L3 INT16 x RO Demand P INT32 x1000, kw RO Demand Q INT32 x1000, kvar RO Demand S INT32 x1000, kva RO Demand I 1 UINT32 x1000, A RO Demand I 2 UINT32 x1000, A RO Demand I 3 UINT32 x1000, A RO Phase angle U 1 UINT16 x 100, RO Phase angle U 2 UINT16 x 100, RO Phase angle U 3 UINT16 x 100, RO Phase angle I 1 UINT16 x 100, RO Phase angle I 2 UINT16 x 100, RO Phase angle I 3 UINT16 x 100, Reserved 56 PEM330-PEM333_BA_en_D00007_00/

57 Modbus Register Map Register Property Description Format Scale/ unit RO Alarm 3) Bitmap RO RO Status digital outputs 4) Status digital inputs 5) Bitmap Bitmap RO SOE pointer 6) UNIT32 Notes: Tab. 8.1: Basic measuring values 1) Only in the case of wye connection. 2) "x 100, V" means that the voltage value in the register is 100 times the actual measured value (therefore, the value of the register must be divided by 100 to obtain the measuring value). 3) The alarm register shows various alarm states (1 = active, 0 = inactive). Tab. 8.2: Bit sequence alarm register (40095) illustrates details of the alarm register. PEM330-PEM333_BA_en_D00007_00/

58 Modbus Register Map Bit in register Alarm by event B0 B2 Reserved B3 Setpoint 1 B4 Setpoint 2 B5 Setpoint 3 B6 Setpoint 4 B7 Setpoint 5 B8 Setpoint 6 all other bits Reserved Tab. 8.2: Bit sequence alarm register (40095) 4) Status register 40096: Represents the status of the two digital outputs B0 for DO1 (1 = active/closed; 0 = inactive/open) B1 for DO2 (1 = active/closed; 0 = inactive/open) 5) Status register 44097: Represents the status of the two digital inputs B0 for DI1 (1 = active/closed; 0 = inactive/open) B1 for DI2 (1 = active/closed; 0 = inactive/open) 6) The event log can store up to 32 events. It works like a ring buffer according to the FIFO principle: the 33rd value overwrites the first value, the 34th the second and so on. The event log can be reset in the setup parameter menu (see page 43). 58 PEM330-PEM333_BA_en_D00007_00/

59 Modbus Register Map 8.2 Energy measurement Register Characteristics Description Format Unit RW Active energy import UINT32 x 0.1 kwh RW Active energy export UINT32 x 0.1 kwh Reserved RW Reactive energy import UINT32 x 0.1 kvarh RW Reactive energy export UINT32 x 0.1 kvarh Reserved RW Apparent energy UINT32 x 0.1 kvah Tab. 8.3: Energy measurement Note: When the maximum value of 99,999,999 kwh/kvarh/kvah is reached, the measurement will restart with 0. PEM330-PEM333_BA_en_D00007_00/

60 Modbus Register Map 8.3 Peak demand The value of the peak demand register is 1000 times the actual value, that means, that the value of the register has to be divided by 1000 to obtain the value in kw, kva or kvar. Register Characteristics Description Format RO Peak demand P RO Peak demand Q RO Peak demand S RO Peak demand I RO Peak demand I 2 see Tab. 8.5: Data structure peak demand RO Peak demand I 3 Tab. 8.4: Peak demand Structure of registers Register 1 Register 2 Register 3 Register 4 Description Peak demand HiWord Peak demand LoWord UNIX time HiWord UNIX time LoWord Tab. 8.5: Data structure peak demand 60 PEM330-PEM333_BA_en_D00007_00/

61 Modbus Register Map 8.4 Total harmonic distortion (THD) and k-factor Total harmonic distortion (THD): The value of the THD returned is 10,000 times the actual value. Example: If the register contains a value of 1031, it means 1031/ = or % k-factor: The value of the k-factor returned is ten times the actual measured value. Register Property Description Format Factor RO k-factor I 1 UINT RO k-factor I 2 UINT RO k-factor I 3 UINT Reserved RO THD U L1 UINT RO THD U L2 UINT RO THD U L3 UINT RO THD I 1 UINT RO THD I 2 UINT RO THD I 3 UINT Tab. 8.6: Harmonic and k-factor measurements PEM330-PEM333_BA_en_D00007_00/

62 Modbus Register Map 8.5 Setup parameters Register Property Description Format Range/unit Reserved RW Transformer ratio voltage transformer UINT (100 * ) RW Transformer ratio measuring current transformer UINT (current input 5 A) (current input 1 A) (1000 * ) RW Connection mode UINT RW Device address UINT RW Baud rate UINT RO Parity UINT16 0 = WYE * 1 = DELTA 2 = DEMO (100*) 1 = = = = 9600 * 5 = = 8N2; 1 = 8O1 2 = 8E1 * ; 3 = 8N1 4 = 8O2 ; 5 = 8E Reserved * factory setting 62 PEM330-PEM333_BA_en_D00007_00/

63 Modbus Register Map Register Property Description Format Range/unit WO clear all energy value registers UINT16 Writing 0xFF00 to the register clears the values for P, Q and S WO Resets the event log UINT16 Writing 0xFF00 to the register resets the SOE pointer of the event log to Reserved RW Setpoint RW Setpoint RW Setpoint RW Setpoint RW Setpoint 5 Data structure setpoint 1) RW Setpoint RW DI1 setpoint trigger UINT16 0* = disabled 1 = DO1; 2 = DO RW DI2 setpoint trigger UINT16 0* = disabled 1 = DO1; 2 = DO Reserved RW Power factor convention UINT16 B1B0: 00* = IEC 01= IEEE 10 = -IEEE PEM330-PEM333_BA_en_D00007_00/ * factory setting 63

64 Modbus Register Map Register Property Description Format Range/unit RW Calculation method S UINT16 B1B0: 00* = vector 01 = scalar Reserved RW Polarity measuring current transformer L1 UINT16 0* = normal 1 = reversed RW Polarity measuring current transformer L2 UINT16 0* = normal 1=reversed RW Polarity measuring current transformer L3 UINT16 0=normal 1=reversed Reserved UINT RW Specified time for demand measurement UINT16 1, 2, 3, 5, 10, 15*, 30, 60 minutes Reserved WO Clear peak demand value Tab. 8.7: Setup parameters UINT16 Writing 0xFF00 to the register resets the peak demand value to 0 * factory setting 64 PEM330-PEM333_BA_en_D00007_00/