Operating Manual. Digital Multifunctional Power Meter with LCD Display and Optional Modules WPM 770. Contents

Transcription

1 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules WPM 770 Contents 1. Safety Notes General Information Dimensions Installation and Connection Installing and connecting the meter Connection of the basic unit Terminal assignment of the basic unit Connection to the mains Connection of the RS485 interface Connection of the status inputs Connection of the relay outputs Connection of the optional modules Terminal assignment of the optional modules WPM 770-EP: 2 pulse outputs WPM770 S: 4 additional status inputs WPM770 R: 2 additional relay outputs Display and Keys

2 5.1. LCD Display Keys and key functions Measurements Voltages Currents Powers Power factor Frequency Energies Demand Phase sequence Quality Analysis Overview Harmonics Frequency deviation Voltage deviation Voltage unbalance Displaying Measured Values Display after power-on Menu overview for measuring values diplay Display of the voltages (VOL) Display of the currents (I) Display of the frequency (FRE) Display of the powers (POWER) Display of the energies (ENERGY) Display of the harmonics (EQ) Display of the demand values (DMD) Programming Start programming Entering the key number (PIN) Programming menu overview Meter settings (METER) RS485 settings (COM) Clear data (CLEAR) Relay settings (RELAY) Setpoint settings (LIMIT) Error log (ERROR) Energy Counting and Tariffs Energy counting Tariff tables Event Recording...45 Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

3 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules Relay events Frequency deviations Voltage deviations Voltage unbalance Maximum demand Maximum and minimum values Troubleshooting Technical Data Safety Notes Warning This device may only installed or maintained by personnel who have the required technical and specialist knowledge. The manufacturer will not hold any responsability for damage due to disregarding this manual. Risk of electric hazard, fire, or explosion Before working on the device or equipment, disconnect all conductors of voltage inputs and auxiliary supply from mains power. The outputs of all the current transformers must be short-circuited. Use a suitable measuring device to confirm the absence of hazardous voltage. Put all covers and protection devices in place before energizing the equipment. Always supply the device with the correct rated voltage (see the label on the device). Not observing these precautions may cause serious injuries

4 2. General Information WPM 770 is a multi-functional power meter, integrating data acquisition and control into one device. It can take the place of numerous meters, transducers, and other components. Real-time true-rms measurement: Voltages phase to neutral and phase to phase of the 3 phases as well as mean value, minimum/maximum values, unbalance and deviation from nominal value; currents of 3 phases and mean value, neutral current, minimum/maximum values; phase sequence; frequency and frequency deviation; active power, reactive power, apparent power, and power factor of the 3 phases and in total Programmable demand calculation for currents and powers (fixed block or moving block, demand time can be set to 5; 10; 15; 30 min) Active energy and reactive energy in 4 quadrants (imported/exported, inductive/capacitive), 4 tariffs for energies in up to 8 periods in 24 hours in 2 time zones, working days and holiday days can be set Harmonic analysis of voltages, currents, powers, and energies up to the 31 st harmonics as well as total harmonic distortion (THD) Built - in clock and event logging Alarms for upper and lower setpoints 2 relay outputs and 3 status inputs RS485 interface (Modbus-RTU) WPM 770 can be equipped with up to 3 optional modules: WPM 770--EP WPM 770--S WPM 770--R WPM 770--M WPM 770--AO WPM 770--AI Optional module 2 pulse outputs (maximum 1 module per device) Optional module 4 additional status inputs (maximum 2 modules per device) Optional module 2 additional relay outputs (maximum 1 module per device) Optional module memory extension 8 MB Optional module 2 analogue outputs ma (on request) (maximum 1 module per device) Optional module 2 analogue inputs ma (on request) (maximum 1 module per device) WPM 770--P Optional module Profibus interface (on request) (maximum 1 module per device) WPM 770--BA Optional module BACnet interface (on request) (maximum 1 module per device) The modules can be attached to the rear of the device. Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

5 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 3. Dimensions (dimensions in mm) optional module 4. Installation and Connection 4.1. Installing and connecting the meter If you want to use one or more than one optional module: Press the optional module on the rear of the meter until it snaps in. Then, fix it with the screw. Make sure that all the lines are de-energized and the outputs of the current transducers are short-circuited. Insert the meter into the panel cutout. Fix the meter using the two plastic clips

6 Connect the meter according the terminal assignment (also see the print on the meter). Insert the terminal strips into the meter and fasten the two screws of the terminal strip Connection of the basic unit Terminal assignment of the basic unit No. Terminal Description No. Terminal Description 1 NC not connected 10 RL21 relay output N/ auxiliary supply 11 RL22 relay output 2-3 N/+ auxiliary supply 12 RL11 relay output V1 voltage L1 13 RL12 relay output 1-5 V2 voltage L2 14 SG status input ground 6 V3 voltage L3 15 S3 status input VN voltage neutral 16 S2 status input RS485 RS S1 status input RS485+ RS I1+ current L1 19 I1- current L1 20 I2+ current L2 21 I2- current L2 22 I3+ current L3 23 I3- current L3 Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

7 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules Connection to the mains 3 phase 4 wire system, 3 CTs, voltage directly connected 3 phase 3 wire system, 3 CTs - 7 -

8 3 phase 3 wire system, 2 CTs Note: The currents and the powers are measured in 4 quadrants. Pay attention to the phase sequence of the voltage and current connections. If not connected correctly, the currents, powers, and energies will be displayed incorrectly! Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

9 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules Connection of the RS485 interface WPM 770 is equipped with one RS485 interface: RS485 converter WPM770 WPM770 WPM770 Notes: The RS485 bus must be terminated by a 120 Ω resistor. A maximum of 32 devices can be connected to one RS485 bus. Without repeater, the bus length must not exceed 1200 m. The RS485 terminals of the WPM 770 are protected against 230 V for max. 5 min. The inputs will not be destroyed and, after powering on again, the interface will work again. For programming see 9.5.RS485 settings (COM) - 9 -

10 Connection of the status inputs WPM 770 is equipped with three status inputs which can be used, e.g. for recording switch positions. The status inputs must be connected by switch contacts and an external supply of V AC. ~ external supply ~ WPM Connection of the relay outputs WPM 770 is equipped with two relay outputs. To each relay output, the exceed or deceed of one measuring unit can be assigned. Setpoints upper and lower setpoint adjustable % Delay on-delay and off-delay adjustable s Measuring unit selectable See 9.6. Relay settings (RELAY) When a realy output is activated, an event and a time stamp will be recorded. Switching capacity: 250 V AC, 5 A / 30 V DC, 5 A Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

11 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 4.3. Connection of the optional modules Terminal assignment of the optional modules WPM 770-EP: 2 pulse outputs No. Terminal Description 1 EX P1+ pulse output for active energy + 2 EX P1 pulse output for active energy 3 NC not connected 4 EX P2+ pulse output for reactive energy + 5 EX P2 pulse output for reactive energy WPM770 EP is equipped with pulse outputs for active energy and for reactive energy. The outputs provide optocoupler open collector, max. 50 V, 50 ma The pulse weight and the pulse length are programmable. See 9.4. Meter settings (METER) external supply WPM 770-EP

12 WPM770 S: 4 additional status inputs No. Terminal Description 1 EX S4(S8) status input 4 (or 8) + 2 EX S5(S9) status input 5 (or 9) + 3 EX S6(S10) status input 6 (or 10) + 4 EX S7(S11) status input 7 (or 11) + 5 EX SG status input groand See Connection of the status inputs WPM770 R: 2 additional relay outputs No. Terminal Description 1 RL42 relay output 4 2 RL41 relay output NC not connected 5 RL32 relay output 3 6 RL31 relay output 3 + See Connection of the relay outputs Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

13 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 5. Display and Keys 5.1. LCD Display Displays for: 1: Function 2: Measuring units 1 ) 3: Load rate = average current/rated current * 100% 4: Status of the digital inputs (DI) and the digital outputs (DO): = ON, = OFF 5: Communikation: = no connection, = connection with internal RS485 interface 1, = connection with interface 2 6: Unit 7: Measured values 2 ) 8: Key function 9: Alarm: means, there is an error ) The phases are indicated by A, B, C: A = L1, B = L2, C = L3 2 ) none (+) = import, - = export = capacitive, = inductive Note: The display backgroand illumination is lit after pressing a key. When no key is pressed, the illumination goes out after approximately 35 s

14 5.2. Keys and key functions WPM 770 is equipped by four keys F1 to F4. By pressing these keys, you can display measured values and you can program settings. The key function is indicated in the display. Key function Menu item Description Call up the respective menu { Display further functions Return to previous menu or cancel SET Call up the settings Displays see 8. Displaying Measured Values Programming see 9. Programming Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

15 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 6. Measurements 6.1. Voltages The overload limit for voltages is 120% of the rated voltage. Exceeding this limit may result in inaccurate measurement readouts Currents WPM 770 can only be connected via current transducers. The CT secondary rating must coincide with the rated current of the meter. The CT primaty rating can be programmed to A. The CT primary rating should not be smaller than the rated current of the meter. The overload limit for currents is 120% of the rated current. Exceeding this limit may result in inaccurate measurement readouts Powers The measuring range for active, reactive, and apparent power is ,9 MW/Mvar/MVA per phase or ,9 MW/Mvar/MVA in total Power factor The power factor is calculated and displayed in 4 quadrants. The display will only be correct if the phase sequence of the connection is correct Frequency Depending on the connection, the frequency is measured on different phases. With 3-wire connection, the frequency is measured on the L1-L2 voltage. With 4-wire connection, the frequency is measured on the L1 voltage. In the case of L1 outage, the frequency is measured on the L3 voltage. In the case of L1 and L3 outage, the frequency is measured on the L2 voltage Energies WPM 770 measures the energies bidirectionally in 4 quadrants. The polarities of the active and reactive energies (import/export, inductive/capacitive) comply to the powers according to the IEC standards. The energy values are counted up to ,9 kwh/kvarh. After that, the count restarts from zero

16 6.7. Demand WPM 770 calculates the demand for the currents of the 3 phases and for the total active, reactive, and apparent powers. WPM 770 supports two calculation methods: fixed block and moving block The demand time is programmable to 5 min, 10 min, 15 min, 30 min, or 60 min. With the "fixed" calculation method, no subinterval is required. With the "moving" calculation method, a subinterval of 1 min, 2 min, or 3 min can be programmed: Demand time Possible subintervals 5 min 1 min 10 min 1 min or 2 min 15 min 1 min or 3 min 30 min 1 min, 2 min, or 3 min 60 min 1 min, 2 min, or 3 min With the "moving" calculation method, the demand values are calculated as follows: Sum of an electrical parameter in the demand time divided by the demand time. The calculation is updated after expiration of the subinterval each. The following figure illustrates the calculation method: On the end of the subinterval, the calculation is updated. Calculation interval Demand time e.g. 10 min The demand value is the mean value in in the demand time. Time (minutes) WPM 770 stores the maximum demand of the powers and currents with time stamps in the non-volatile memory. The demand values are shown on the display and can be read out via RS 485. Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

17 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 6.8. Phase sequence WPM 770 identifies the phase sequence and shows it directly on voltage display (VOL). Examples: Correct phase sequence On L3, the incorrect phase L2 is present Phases L1 and L2 are exchanged Note: The phase sequence will only be identified correctly, if the voltages as well as the currents are powered 3-phase

18 7. Quality Analysis 7.1. Overview The following values are calculated in class B accuracy for assessment of the voltage, current, power, and energy quality: Unit Parameter Range Harmonics Total Harmonic THD of the phase voltages % Distorsion (THD) TOHD of the phase voltages % TOHD = even TEHD of the phase voltages % harmonics THD of the phase currents % TEHD = odd harmonics TOHD of the phase currents % TEHD of the phase currents % Harmonic Ratio (HR) Root Mean Square (RMS) Others HR of the phase voltages % HR of the phase currents % RMS of the phase voltages effective value RMS of the phase currents effective value RMS of the total active power effective value RMS of the total active energy effective value Crest faktor of the phase voltages - K faktor of the phase voltages - Frequency deviation Hz Voltage deviation % Voltage unbalance % The can be read on the display or read out via RS 485. Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

19 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 7.2. Harmonics WPM 770 provides harmonic analysis up to the 31 st harmonic as well as calculation of the total harmonic distortion (THD), of the K factor and the crest factor. The THD refers to the total of higher harmonics except fandamental harmonic, and it is calculated according to the following formula: THD = Σ N 2 i=2 X i i : Harmonic order X : Percentage of the effective value of each harmonic to that of the fundamental i harmonic N: Highest harmonic, here 31 The crest factor is calculated as follows: N U CF = 1.414Σ h h= 1 U1 U 1: Amplitude of the fundamental harmonic U h: Amplitude of the h th harmonic N: Highest harmonic, here 31 If no voltage is applied, the crest factor will be zero. The K factor is calculated as follows: K Factor Σ = N h= 1 ( I h) h 2 Σ N h= 1 ( I ) 2 I h: Ratio of the h th harmonic h: Harmonic order N: Highest harmonic, here 31 If no current is applied, the K factor will be zero. h

20 7.3. Frequency deviation The frequency deviation is the difference between the actual frequency and the rated frequency. Fequency deviation = current frequency - rated frequency The rated ferquency can be set via RS 485 to 50 Hz or 60 Hz. WPM 770 records 30 events of frequency deviations, which exceed a programmable setpoint. In the case of a setpoint exceedance, the event is recorded with a time stamp, the durance, and the maximum deviation Voltage deviation The voltage deviation is the ratio of the difference of the actual voltage and the rated voltage in relation to the rated voltage. Voltage deviation (%) = (current voltage - rated voltage) / rated voltage x 100% The voltage deviation can be positive or negative. WPM 770 records 30 events of voltage deviations, which exceed a programmable setpoint. In the case of a setpoint exceedance the event is recorded with a time stamp, the durance and the maximum deviation Voltage unbalance The voltage unbalance is calculated as follows: ε U U = 2 U1 100% U 1: Effektive value of the 3-phase voltage in positive direction U 2: Effektive value of the 3-phase voltage in negative direction WPM 770 records 30 events of voltage unbalance, which exceed a programmable setpoint. In the case of a setpoint exceedance the event is recorded with a time stamp, the durance and the maximum deviation. Note: Current unbalance is not calculated. Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

21 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 8. Displaying Measured Values 8.1. Display after power-on Mean voltage Ph-N (4 wire) or Ph-Ph (3 wire) Mean current Total power Total energy Menu prompt/key function: (Select with { ) VOL: Voltages I: Currents FRE: Frequency POWER: Powers ENERGY: Energies EQ: Harmonics DMD: Demand further menus with optional modules SET: Settings

22 8.2. Menu overview for measuring values diplay Menu VOL L-N L-L UNBAL MAX MIN REC Description Voltages Voltages phase-neutral and mean value Voltages phase-phase and mean value Phase unbalance positive (U-2), negative (U-1), neutral (U-0), ratio Maximum voltages Ph-N or Ph-Ph and time stamps Minimum voltages Ph-N or Ph-Ph and time stamps Recording of voltage deviations I Currents I-0 Neutral current MAX Maximum currents and time stamps MIN Minimum currents and time stamps FRE POWER ENERGY REC P Q S PF KWH KVARH TOU Frequency Recording of frequency deviations Leistungen Active powers per phase and in total Reactive powers per phase and in total Apparent powers per phase and in total Power factor per phase and in total Energies Import (IN) and Export (OUT) active energies per phase Import (IN) and Export (OUT) reactive energies per phase Import (IN) and Export (OUT) active and reactive energies in the tariffs 1-4 Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

23 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules EQ DMD THD HR RMS CF K-FAC ENRGY IA IB IC P Q S Harmonics Total Harmonic Distorsion for voltage (U) and current (I) for L1, L2, L3 2 nd to 31 st harmonic in % for voltage (U) and current (I) for L1, L2, L3 (Harmonic Ratio) Effective value of the 0 th to 31 st harmonic for voltage (U), current (I), and total power (P) for L1, L2, L3 Crest faktor of the voltages for L1, L2, L3 K faktor of the voltages for L1, L2, L3 1 st to 13 th harmonic of the active energy Demand Maximum demand for current L1 and time stamp Maximum demand for current L2 and time stamp Maximum demand for current L3 and time stamp Maximum demand for active power and time stamp Maximum demand for reactive power and time stamp Maximum demand for apparent power and time stamp

24 8.3. Display of the voltages (VOL) Press key F1 once. Voltage L1 Voltage L2 Voltage L3 Mean value voltages phase-neutral Menu prompt/key function: (Select with { ) L-N: Voltages phase-neutral and mean value L-L: Voltages phase-phase and mean value UNBAL: Phase unbalance positive (U-2), negative (U-1), neutral (U-0), ratio MAX: Maximum voltages Ph-N or Ph-Ph and time stamps MIN: Minimum voltages Ph-N or Ph-Ph and time stamps REC: Recording of the voltage setpoint exceedings Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

25 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules Display of the maximum/minimum voltages (MAX/MIN) Maximum value Year YYYY Date MM-DD Time hh-mm-ss Display of the voltage deviations (REC) Event number Voltage deviation Year YYYY Date MM-DD Time hh-mm-ss Menu prompt/key function: UP: Previous event DOWN: Next event START: Start of event END: End of event

26 8.4. Display of the currents (I) Current L1 Current L2 Current L3 Mean current I-0 Menu prompt/key function: I-0: Neutral current MAX: Maximum currents and time stamps MIN: Minimum currents and time stamps Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

27 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 8.5. Display of the frequency (FRE) Menu prompt/key function: REC: Recording of the frequency deviations Display of the frequency deviations (REC) Event number Frequency deviation Year YYYY Date MM-DD Time hh-mm-ss Menu prompt/key function: UP: Previous event DOWN: Next event START: Start of event END: End of event

28 8.6. Display of the powers (POWER) Menu prompt/key function: (Select with { ) P: Active powers per phase and in total Q: Reactive powers per phase and in total S: Apparent powers per phase and in total PF: Power factor per phase and in total Display of the active powers: L1 L2 L3 Gesamt Display of the reactive powers: L1 L2 L3 Gesamt Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

29 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 8.7. Display of the energies (ENERGY) Menu prompt/key function: KWH: Imported (IN) and exported (OUT) active energies per phase KVARH: Imported (IN) and exported (OUT) reactive energies per phase TOU: Imported (IN) and exported (OUT) active and reactive energies in the tariffs 1-4 Display example of the imported active energy in phase L1 (KWH A-IN) Display example of the imported active energy in tariff 1 (TOU I IN KWH)

30 4-Quadrant measurement and display Display Unit Display of energy value kwh Imported inductive active energy kwh kwh kwh kvarh kvarh kvarh kvarh kwh kwh kvarh kvarh Exported capacitive active energy Exported inductive active energy Imported capacitive active energy Imported inductive reactive energy Exported capacitive reactive energy Exported inductive reactive energy Imported capacitive reactive energy Imported inductive and capacitive active energy Exported inductive and capacitive active energy Reactive 1 st and 2 nd quadrant energy Reactive 3 rd and 4 th quadrant energy Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

31 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 8.8. Display of the harmonics (EQ) Menu prompt/key function: (Select with { ) THD: Total Harmonic Distorsion THD: THD for voltage (U) and current (I) for L1, L2, L3 TEHD: THD of the even harmonics for voltage (U) and current (I) for L1, L2, L3 TOHD: THD of the odd harmonics for voltage (U) and current (I) for L1, L2, L3 HR (Harmonic Ratio): 2 nd to 31 st harmonic in % for voltage (U) and current (I) for L1, L2, L3 RMS: Effective value of the 0 th to 31 st harmonic for voltage (U), current (I) for L1, L2, L3 and total active power (P) CF: Crest faktor of the voltages for L1, L2, L3 K-FAC: K faktor of the voltages for L1, L2, L3 ENRGY: 1 st to 13 th harmonic of the active energy Display example of the THD of the voltages

32 Display example of the 2 nd harmonic of the voltages in % Display example of the effective value of the 0 th harmonic of the voltages Display example of the crest faktor of the voltages Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

33 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules Display example of the K faktor of the voltages Display example of the 1 st harmonic of the active energy

34 8.9. Display of the demand values (DMD) Menu prompt/key function: (Select with { ) IA: Maximum demand for current L1 and time stamp IB: Maximum demand for current L2 and time stamp IC: Maximum demand for current L3 and time stamp P: Maximum demand for active power and time stamp Q: Maximum demand for reactive power and time stamp S: Maximum demand for apparent power and time stamp Display example of the maximum demand for current L1 Maximum demand Year YYYY Date MM-DD Time hh-mm-ss Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

35 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 9. Programming 9.1. Start programming When SET is displayed, press the F4 key. Measurements display Programming SET: Press F4 key Menu/Key function: (Select with { ) METER: Meter settings COM: RS485 settings CLEAR: Clear data RELAY: Relay settings further menus with optional modules LIMIT: Setpoint settings ERROR: Error log

36 9.2. Entering the key number (PIN) For changing programmed settings, you must enter the key number (PIN). CODE is displayed. Press the F3 key. Enter the correct PIN: Standard PIN: 0001 Super PIN: 2011 UP: Increase value LEFT: Select figure to the left (active figure flashes) : Cancel, back to previous menu EDIT is displayed when the key number has been entered correctly. Press the F3 key to change the setting. Change the value. Press the F3 key again to accept the setting. Example: flashes Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

37 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 9.3. Programming menu overview 9.4. Meter settings (METER) Menu INFO Description Device information: V-S: Software version V-H: Hardware version S N: Series number Ex-M Attached optional modules (1 to 3): null: none

38 PULSE: WPM 770 EP Optional module 2 pulse outputs DI: WPM 770 S Optional module 4 additional status inputs DO: WPM 770 R Optional module 2 additional relay outputs M 8MB: WPM 770 M Optional module memory extension 8 MB AO: WPM 770 AO Optional module 2 analogue outputs ma 1 ) AI: WPM 770 AI Optional module 2 analogue inputs ma 1 ) PROFI: WPM 770 P Optional module Profibus interface 1 ) BACNE: WPM 770 BA Optional module BACnet interface 1 ) PT P-R: Voltage transducer primary value 0, kv 1 ) 2 ) CT MODE Mains type: 2 ) 4Y: 4-wire star DATE TIME DMD PULSE S-E: Voltage transducer secondary value (fixed, see meter label) 2 ) P-R: Current transducer primary value A S-E: Current transducer secondary value (fixed, see meter label) 2 ) 3d: 3-wire delta Date: Y: Year M: Month D: Day Time: H: Hour M: Minute S: Second Demand settings: TYPE: Calculation method STAC = fixed, SLIP = moving PERIO: Demand time 5, 10, 15, 30 or 60 min SLIP: Time for subinterval 1, 2 or 3 min (only required for moving calculation method) Pulse outputs (only with WPM 770 EP): PUL-1: Pulse output 1 OBJ: Object/measuring unit: Active energy (only displayed, cannot be changed) CONST: Pulse constant WIDTH: Pulse width ms Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

39 Operating Manual 679.B DEFAU Digital Multifunctional Power Meter with LCD Display and Optional Modules PUL-2: Pulse output 2 OBJ: Object/measuring unit: Active energy (only displayed, cannot be changed) CONST: Pulse constant WIDTH: Pulse width ms Reset to factory settings: no: / YES CODE Change key number (PIN): CALIB Meter calibration: no: / YES Before starting calibration, connect the meter to 3-phase mains. Select YES. Select START. Step 1: RMS RATIO BIG - Feed the meter with rated voltage, rated current with power factor 1.0 Select NEXT. Step 2: RMS DEG BIG - Feed the meter with rated voltage, rated current with power factor 0.5 inductive. Select NEXT. Step 3: RMS RTO SMALL - Feed the meter with rated voltage, 0,25 A with power factor 1.0 Select NEXT. Step 4: RMS DEG SMALL - Feed the meter with rated voltage, 0,25 A with power factor 0.5 inductive. CHECK Device test: Segment test of the dsplay, memory test, test of the keys (when prompted F1 PUT, press the F1 key, etc.) DEMO Demonstration mode: The meter shows fixed values for demonstration purposes. 1 ) on request 2 ) A different value can be set but will not be stored if not supported by the meter

40 9.5. RS485 settings (COM) Menu Description M1ADD RS485 device address of the internal RS485 interface: M1BAU RS485 baud rate of the internal RS485 interface: 2400, 4800, 9600, 19200, Clear data (CLEAR) Menu ENERG DMD MX/MN Description Reset energy counters Reset demand values Reset mininimum and maximum values REC Reset all setpoint exeedings/deceedings for frequecy, voltage and voltage unbalance SOE Reset all events Note: When YES is selected, the values will be reset. After that, no will be displayed again Relay settings (RELAY) Menu Description R1 Settings relay output 1 R2 Settings relay output 2 R3 Settings relay output 3 (only with WPM 770 R) R4 Settings relay output 4 (only with WPM 770 R) jeweils: MODE Switching mode Lo: Local: Relay reacts on the programmed internal setpoint. re: Remote: Relay reacts on an external switching signal. HIGH Upper setpoint % (only for setting Lo local) LOW Lower setpoint % (only for setting Lo local) Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

41 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules OBJ DELAY BACK Measuring unit for realy output (only for setting Lo local): null: none F: Frequency U1: Voltage L1 U2: Voltage L2 U3: Voltage L3 U0: Voltage N UnA: Mean voltage phase-n U12: Voltage L1-L2 U23: Voltage L2-L3 U31: Voltage L3-L1 ULA: Mean voltage phase-phase A1: Current L1 A2: Current L2 A3: Current L3 A0: Current N IAu9: Mean current PF1: Power factor L1 PF2: Power factor L2 PF3: Power factor L3 PFtot: Power factor total UnbU: Phase unbalance voltages THdU1: THD Voltage L1 THdU2: THD Voltage L2 THdU3: THD Voltage L3 THdA1: THD Current L1 THdA2: THD Current L2 THdA3: THD Current L3 Delay time s (only for setting Lo local) 0 means, that relay will react immediately when the setpoint is reached. Delay time s (only for setting re remote) 0 means, that the relay will not fall back

42 Note: If the programmed setpoint is outside of the measuring range, the setpoint will be ignored by the meter. Example: The measuring range for frequency is Hz. For rated frequency 50 Hz: the setpoint range is % For rated frequency 60 Hz: the setpoint range is ,3% When programming a lower setpoint of 20% (i.e. 10 Hz or 12 Hz), no alarm will be output because the setpoint is not valid. Note: Only when the setpoint is exceeded or deceeded and the delay time has elapsed, the relay will be activated. Delay time = 0 means immediate activation Setpoint settings (LIMIT) Menu Description F Setpoint for frequency deviation ,00 Hz VOL Setpoint for voltage deviation ,00% UNBAL Setpoint for voltage unbalance ,00% 9.8. Error log (ERROR) Menu Description 1 Read error non-volatile memory 2 Write error non-volatile memory 3 Read error volatile memory 4 Write error volatile memory 5 Sampling error 6 Communication error 7 Calculation error 10 errors are recorded for each error category. In case of an error, is shown in the display. In this case, contact your distributor. Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

43 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 10. Energy Counting and Tariffs Energy counting WPM 770 calculates the energy flow in in 4 quadrants in multiple tariffs and records it. The energies are counted as of the first powering on of the meter. The energies can be reset to zero by using the keys or via the RS 485 interface. After ,9 kwh/kvarh, the counters restart from zero. The total energy, the multiple tariff energies, and the energies of the last month and the last year are counted. With 4-wire connection, the energies per phase are counted additionally in 4 quadrants Tariff tables WPM 770 supports two tariff tables, which can be programmed separately. Each tariff table can be programmed in 8 periods per day with 4 different tariffs. Example for tariff tables: Tariff table No. periods Sequence Starting time (period) Tariff Tbale :00 (- 03:00) F :00 (- 06:00) F :00 (- 09:00) F :00 ( ) F :00 (- 15:00) F :00 (- 18:00) F :00 (- 21:00) F2 Table :00 (- 24:00) F :00 (- 10:00) F :00 (-12:00) F :00 (-14:00) F :00 (- 20:00) F :00 (- 06:00) F4-43 -

44 There are two modes for the tariffs: "by date" or by "holiday days" In the "by date" mode, the year (365 days) is divided in two periods. In the "by holiday days" mode, the days are classified as working days and holiday days. Working days are monday to friday, holyday days are saturday and sunday. Example for programming the modes: Mode Time zone 1 (tariff table 1) Time zone 2 (tariff table 2) by date April 1 st - September 30 th October 1 st - March 31 st by holiday days Monday to Friday Saturday and Sunday Important notes A day (24 hours) can be divided into a maximum of 8 periods with 4 tariffs. Each period must be >15 min, the duration must be a multiple of 15 min. The starting times must be programmed in ascending order. The tariffs can only be programmed via the RS485 interface and not by using the keys. If two periods of the same tariff interfere to each other, the meter merges the two periods. Time zone 1 uses tariff table 1, time zone 2 uses tariff table 2 It cannot be changed. Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

45 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 11. Event Recording WPM 770 records 100 error events and 30 setpoint events for frequency, voltage and voltage unbalance each. Additionally, the WPM 770 provides the maximum values of the demand as well as the maximum and minimum values of the consumation Relay events WPM 770 is able to record the switching events and the relay status (ON/OFF). The switching events are stored with time stamp in the UNIX time format. (UNIX time format = Time in seconds as of the 1/1/1970, 00:00 hours) The time resolution is 1 ms. The events can be read out by software. Example: :31: ms Relay 1 ON Frequency deviations The setpoint for frequency deviation can be programmed (default: 0,2 Hz, range: Hz). When exceeding or deceeding the setpoint, the frequency deviation, start and end of the frequency devaiation, and the maximum frequency deviation (with sign) are stored. The values can be shown on the display and read out via the RS 485 interface. Example: :28: :30:15, frequency deviation, max. 0.5 Hz Voltage deviations The setpoint for voltage deviation can be programmed (default: 10%, range: ,99%). When exceeding or deceeding the setpoint, the voltage deviation, start and end of the voltage devaiation, and the maximum voltage deviation (with sign) are stored. The values can be shown on the display and read out via the RS 485 interface. Example: :02: :30:46, voltage deviation, max. -14%

46 11.4. Voltage unbalance The setpoint for voltage unbalance can be programmed (default: 20%, range: %). When exceeding or deceeding the setpoint, the voltage unbalance, start and end of the voltage unbalance, and the maximum voltage unbalance are stored. The values can be shown on the display and read out via the RS 485 interface. Example: :05: :28:35, voltage unbalance, max. 24% Maximum demand WPM 770 records the maximum demand for the currents of the 3 phases and the total active, reactive, and apparent power. When the actual demand exceeds the stored demand, the new maximum demand will be stored with time stamp. The values can be shown on the display and read out via the RS 485 interface Maximum and minimum values WPM 770 records the maximum and minimum 3-phase values for the voltages (Ph-N or Ph- Ph), currents, active, reactive, and apparent powers. When the actual value exceeds or deceeds the stored value, the new maximum value will be stored with time stamp. The values can be shown on the display and read out via the RS 485 interface. Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de

47 Operating Manual 679.B Digital Multifunctional Power Meter with LCD Display and Optional Modules 12. Troubleshooting Possible problem Possible cause Possible solution No display after power-up. Measured values are false or not as expected. There is no change in the ON-OFF status of the status inputs Relay does not react No or not correct pulses on pulse output (only with WPM 770- EP) Auxiliary supply may not be connected. Voltage measurement is not correct. Current measurement is not correct. Power measurement is not correct. Power supply for sttus inputs is not correct. Relay mode is not correct. Relay does not receive an external command.. Delay time has not been set correctly.. The pulse output is deactivated or wrong measured quantity or wrong pulse weight is set. Check rated voltage on L/+ and N/- terminals. Check fuse in auxiliary supply. Check neutral connection. Check voltage to match rated voltage. Check voltage transformer ratio or PT primary and secondary values. Check current to match rated current. Check current transformer ratio or CT primary and secondary values. Check system type setting: 4-wire star or 3-wire delta Check phase sequence of voltages and currents Check sequence of CT connection Check external contacts. Check external connections. Check programming. Check programming. Check communication. Check programming. Check programming

48 No communication with the meter Meter address is wrong. Baud rate is wrong. The communication line has not been correctly connected to the terminal resistor. The communication line suffers interference. The communication line is interrupted. Check if the address of the meter is set correctly, or if there is more than one meter with the same address on the bus. Check baud rate. Check if the 120 Ohm resistor has been connected only to the last device. Check if the communication-shielding layer has been earthed effectively. Check if the communication cable has been disconnected. 13. Technical Data see the Data Sheet 679.D.141.xx - Specifications subject to change without notice; date of issue; Stand 08/13 - Weigel Meßgeräte GmbH P.O.B D Nürnberg Phone: 0911 / Erlenstraße 14 D Nürnberg Fax: 0911 / Management: Phone: 0911 / Internet: vertrieb@weigel-messgeraete.de