Installation and Operating Instructions
Contents
1. 1 to 255 Rly Relay pulse output kKWh kVArh Active reactive Import or Export Rate 0 001 0 01 0 1 1 10 100 1k 10k kWh or kVArh per pulse Pulse width 200 100 60 ms NRGy Energy Unit kilo Mega units selection 1 limit on off If on power values lt 1 of range max will not be included in energy measurements prevents creep Test Display on all elements on to check display dISTG Display toggle Each element is turned on and off Phase sequence V123 1123 SOFT Displays firmware version and build numbers Menu Option Selection a 1 Use the tal up and fJ down keys to select the required item from the menu Selection does not roll over between bottom and top of list a 2 Press to confirm the selection 3 Ifan item flashes then it can be adjusted by the etal up and y PIPF down keys If not there may be a further layer e g Comms Baud rate before adjustment is possible Press to select the lower layer 4 Having selected an option from the current menu layer press n to confirm your selection The SET indicator will appear 5 Having completed a parameter setting press Vie to return to a higher menu level The SET indicator will be removed and 7 you will be able to use the etal and fJfy4 keys for further menu selection aj 6 On completion of all setting up press repeatedly until the measurement screen is restored Number Entry Procedure When setting up the unit som2. 2735 Rev 0 28 03 12
3. Quantities are variables that affect measurement errors to a minor degree Accuracy is verified under nominal value within the specified tolerance of these conditions 23 C 1 C 50 or 60Hz 2 Sinusoidal distortion factor lt 0 005 Ambient temperature Input waveform Input waveform Auxiliary supply voltage Nominal 1 Auxiliary supply frequency Nominal 1 Auxiliary supply waveform if AC Magnetic field of external origin Sinusoidal distortion factor lt 0 05 Terrestrial flux Environment 10 C to 55 C 20 C to 70 C 0 to 90 non condensing Operating temperature Storage temperature Relative humidity Altitude Up to 2000m Warm up time 1 minute Vibration 10Hz to 50Hz IEC 60068 2 6 2g Shock 30g in 3 planes Maximum operating and storage temperatures are in the context of typical daily and seasonal variation Mechanics DIN rail dimensions 72 x 90 mm WxH per DIN 43880 DIN rail DIN 43880 Sealing IP20 minimum Self extinguishing UL 94 V 0 Mounting Material Approval Certification and Standards Compliance RoHS compliant Although this class of product is presently excluded from the RoHS regulations the unit has been designed and manufactured in compliance with the RoHS regulations BS EN 61326 Class A Industrial EMC Immunity BS EN 61326 Class A Industrial Safety BS EN 61010 1 2001 EMC Emissions amp d HAVELLS Project 2191 Drawing No CI 3K51301 DMR
4. Ground Connections For safety reasons current transformer secondary connections should be grounded in accordance with local regulations Under no circumstances should this product be operated without this earth connection Maintenance In normal use little maintenance is needed As appropriate for service conditions isolate from electrical power inspect the unit and remove any dust or other foreign material present Periodically check all connections for freedom from corrosion and screw tightness particularly if vibration is present The front of the case should be wiped with a dry cloth only Use minimal pressure especially over the viewing window area If necessary wipe the rear case with a dry cloth If a cleaning agent is necessary isopropyl alcohol is the only recommended agent and should be used sparingly Water should not be used If the rear case exterior or terminals should be contaminated accidentally with water the unit must be thoroughly dried before further service Should it be suspected that water might have entered the unit factory inspection and refurbishment is recommended Specification Measured Parameters The unit can monitor and display the following parameters of a single phase 3 phase 3 wire or 3 phase 4 wire supply Voltage and Frequency Phase to neutral voltages 100 to 289V a c not for 3p3w Voltages between phases 173 to 500V a c 3p only Frequency in Hz Percentage total voltage harmonic dis
5. L3 VV yY Y N Case Dimensions Width 71 3 mm Depth 57 5 mm Length 90 5 mm Length including fixing tag 93 5 mm The unit is intended for mounting on a standard DIN rail Avoid mounting the unit where there is excessive vibration in excessive direct sunlight or outside a reasonably stable ambient temperature of 10 to 55 C Safety 1A SLOW BLOW FUSE LOAD The unit is designed in accordance with BS EN 61010 1 2001 IEC 61010 1 2001 Permanently connected use Normal condition Installation category Ill pollution degree 2 basic insulation for rated voltage Measurement Category Ill EMC Installation Requirements Whilst this unit complies with all relevant EU EMC electro magnetic compatibility regulations any additional precautions necessary to Caution Risk of Warnings AN Electric Shock e During normal operation voltages hazardous to life may be present at some of the terminals of this unit Installation and servicing should be performed only by qualified properly trained personnel abiding by local regulations Ensure all supplies are de energised before attempting connection or other procedures e Terminals should not be user accessible after installation and external installation provisions must be sufficient to prevent hazards under fault conditions e This unit is not intended to function as part of a system providing the sole means of fault protection good engineering practice
6. MW maximum 1 to 144 of nominal 3600 MVA maximum Power is only registered when voltage and current are within their respective range of use Active power Apparent power Power factor is only indicated when the measured VA is over 3 of range maximum Accuracy Voltage 0 5 of range maximum Current 0 5 of nominal Neutral current 4 of nominal calculated Frequency 0 2 of mid frequency 1 of unity 0 01 1 of range maximum Power factor Active power W Reactive power VAr 1 of range maximum Apparent power VA 1 of range maximum Class 1 IEC 62053 21 section 4 6 1 of range maximum Active energy Wh Reactive energy VARh 1 up to 31 harmonic above 30 THD the error in this reading may increase to 1 5 for the higher harmonics Voltage and current 0 013 C Active energy 0 018 C 1s typical to gt 99 of final reading at 50 Hz Total harmonic distortion Temperature co efficient typ Response time to step input Error change due to variation of an influence quantity in the manner described in Section 6 of IEC 688 1992 2 x error allowed for the reference condition applied in the test Error due to temperature variation as above Error in measurement whena 2 x error allowed at the end of the measurand is within its reference range adjacent to the measuring range but outside section of the measuring range its reference range where the measurand is currently operating be
7. dictates that any critical function be protected by at least two independent and diverse means e The unit does not have internal fuses therefore external fuses must be used for protection and safety under fault conditions e Never open circuit the secondary winding of an energised current transformer e This product should only be operated with the CT secondary connections earthed e If this equipment is used in a manner not specified by the manufacturer protection provided by the equipment may be impaired e Auxiliary circuits Communication amp relay outputs are separated from metering inputs and 110 400V auxiliary circuits by at least basic insulation Such auxiliary circuit terminals are only suitable for connection to equipment which has no user accessible live parts The insulation for such auxiliary circuits must be rated for the highest voltage connected to the instrument and suitable for single fault condition The connection at the remote end of such auxiliary circuits should not be accessible in normal use Depending on application equipment connected to auxiliary circuits may vary widely The choice of connected equipment or combination of equipment should not diminish the level of user protection specified e It is necessary to wind the three current inputs through separate ferrite rings an example part number Wurth 742 701 110 a minimum of 6 times e It is good practice to install sensitive electronic instrum
8. e screens require the entering of a number In particular on entry to the setting up section a password must be entered Digits are set individually from left to right The procedure is as follows 1 The current digit to be set flashes and is set using the up and down keys 2 Press ee to confirm each digit setting The SET indicator appears after the last digit has been set 3 After setting the last digit press Jf to exit the number setting routine The SET indicator will be removed Installation Single Phase 2 wire P1 LOAD _ S1 N VOLTAGE INPUTS O O L3 L2 L1 AUX 1A FAST BLOW FUSE ei AUX 1A SLOW BLOW FUSE L1 N LOAD E 3 Phase 4 wire 3 Phase 3 wire LOAD AoA A P1 1 13 CT INPUTS 2 ht OUUU VOLTAGE INPUTS N L3 L2 L1 O O AUX 1A FAST BLOW FU L1 SES 1A SLOW BLOW FUSE AUX L2 L3 LOAD YY y LOAD A AAAA Deo AUX 1A FAST BLOW FUSES AUX L1 L2
9. ents that are performing critical functions in EMC enclosures that protect against electrical interference causing a disturbance in function Wiring Input connections are made to screw clamp terminals Choice of cable should meet local regulations for the operating voltage and current The current inputs of these products are designed for connection into systems via current transformers only provide proper operation of this and adjacent equipment will be installation dependent and so the following can only be general guidance All negative current inputs are commoned inside the unit and grounding should be at one point only To minimise measurement errors the CTs should be grounded as shown in the wiring diagram CT secondaries must be grounded in accordance with local regulations It is desirable to make provision for shorting links to be made across CTs to permit easy replacement of a unit should this ever be necessary e Avoid routing wiring to this unit alongside cables and products that are or could be a source of interference e The auxiliary supply to the unit should not be subject to excessive interference In some cases a supply line filter may be required e To protect the product against incorrect operation or permanent damage surge transients must be controlled It is good EMC practice to suppress transients and surges at the source The unit has been designed to automatically recover from typical transients howe
10. g HAVELLS Installation and Operating Instructions PowerSafe PS4 DIN rail digital meter for single and three phase electrical systems Introduction This unit measures and displays the characteristics of single phase two wire three phase three wire and three phase four wire supplies including voltage frequency current power and real and reactive energy imported and exported Measurement In measurement mode the buttons control the displayed measurement as follows Selects the Voltage and Frequency display screens Successive operations of the button select voltage frequency and THD Total Harmonic Distortion In Set up mode this is the Back button Selects the Current display screens Successive operations select phase and neutral 3ph4w currents max demanded currents and current THD In Set up mode this is the Up button Selects the Instantaneous Power screens Successive operations select power W VAr amp VA max demanded power and power factor In Set up mode this is the Down button Selects the Energy display screens Successive operations select imported exported Wh and Varh Display can indicate up to 9999999 9 Running man symbol flashes as data accumulates 1 symbol shows that power values of lt 1 of range maximum will be included in energy readings In Set up mode this is the Enter button Display shows the units of measurements in use for each range Ener
11. gy units can be set via set up screens other units are set automatically A Demand Reset resets maximum demand readings to zero Setting up To enter set up mode firmly press the and D buttons simultaneously and hold for 5 seconds until the password screen appears Setting up is password protected so you must enter the correct password default 0000 before proceeding If an incorrect password is entered the display reverts to measurement mode To exit setting up mode press repeatedly until the a m measurement screen is restored or hold A and buttons simultaneously for 5 seconds Setup Menu Structure Change password nnnn 4 digit number default 0000 Supply system 3 phase 3 wire or 4 wire or single phase CT Setthe value of the CT primary in use nnnn 4 digit number 0001 to 9999 dIT Demand Integration Time This is the period in minutes over which the current and power readings are integrated for maximum demand measurement Options are Off 5 8 10 15 20 30 and 60 minutes RSET Resets cumulative Energy and or Demand measurements to zero COMS Communication parameters for RS485 interface FMT Format Modb Modbus protocol Baud rate 2400 4800 9600 19200 38400 Parity none odd even Stop bits 1 1 or 2 if parity is None Network address nnn 3 digit number 1 to 247 Order Norm Rev Indicates Modbus word order N2 Johnson Controls JC N2 protocol Network address nnn 3 digit number
12. ing tested Auxiliary Supply Two way fixed connector with 2 5mm stranded wire capacity 110 to 400V a c 50 60Hz 10 or 120V to 350V d c 20 Consumption lt 10W Pulse Relay Output The pulse relay output can be set to generate pulses to represent imported kWh exported kWh imported kVArh or exported kVArh Rate can be set to generate 1 pulse per 0 001 1 Wh VArh 0 01 10 Wh VArh 0 1 100 Wh VArh 1 1 kWh kVArh 10 10 kWh kVArh 100 100 KWh kVArh 1k 1 M Wh MVArh 10k 10MWh MVArh The rate cannot be set to a value that could result in more than 2 pulses per second Pulse width 200 100 60 ms Relay Rating 240V ac 50mA RS485 Output for Modbus or JC N2 Protocol For Modbus protocol the following RS485 communication parameters can be configured from the Set up menu Baud rate 2400 4800 9600 19200 38400 Parity none odd even Stop bits 1 or 2 RS485 network address nnn 3 digit number 1 to 247 Modbus Word order Shows the word order Hi Lo of the 8 bit bytes in the Modbus message format This setting can only be changed from the Modbus port Note that with odd or even parity Stop Bits are forced to one For JC N2 protocol only the RS485 network address can be configured The range of addresses is 1 to 255 Havells Sylvani UK Ltd Avis Way Newhaven East Sussex BN9 OED Customer Service 0843 22 753 88 www havells co uk Reference Conditions of Influence Quantities Influence
13. tortion THD for each phase to N not for 3p3w supplies Percentage voltage THD between phases 3p only Current Current on each phase 1 to 9999A range set by external current transformer s CTs Neutral current calculated 3p4w supplies only Maximum demand currents on each phase since the last demand reset Maximum neutral demand current since the last demand reset 8p4w supplies only Current THD for each phase Power and Power Factor Instantaneous power Power 0 to 3600 MW Reactive Power 0 to 3600 MVAr Volt amps 0 to 3600 MVA Maximum demanded power since last Demand reset Power factor Energy Measurements Imported energy 0 to 9999999 9 Wh kWh or MWh Exported energy 0 to 9999999 9 Wh kWh or MWh Imported reactive energy 0 to 9999999 9 VArh kVArh or MVArh Exported reactive energy 0 to 9999999 9 VAhr kVArh or MVArh Measured Inputs Voltage inputs through 4 way fixed connector with 2 5mm2 stranded wire capacity 3 Phase 3 amp 4 wire and Single phase 2 wire Line frequency measured from L1 voltage or L3 voltage Three current inputs six physical terminals with 2 5mm2 stranded wire Capacity for connection of external CTs Nominal rated input current 5A a c rms Range of Use Voltage 5 to 120 of Range Maximum below 5 of range maximum voltage current indication may only be approximate Current 1 to 120 of nominal Power factor 1 to 0 leading or lagging 1 to 144 of nominal 3600
14. ver in extreme circumstances it may be necessary to temporarily disconnect the auxiliary supply for a period of greater than 5 seconds to restore correct operation Additional considerations for three wire systems The neutral terminal terminal N is indirectly connected to the voltage input terminals terminals L1 L2 L3 When connected to a three wire system the neutral terminal will adopt a potential somewhere between the remaining lines If external wiring is connected to the neutral terminal it must be connected to either the neutral line or earth ground to avoid the l ibility of electric shock from the neutral terminal e Screened communication leads are required These and d Ob celle e i a ils other connecting leads may require the fitting of RF suppression components such as ferrite absorbers line filters etc if RF fields cause problems Fusing This unit must be fitted with external fuses in voltage and auxiliary supply lines Voltage input lines must be fused with a quick blow fuse 1A maximum Auxiliary supply lines must be fused with a slow blow fuse rated 1A maximum Choose fuses of a type and witha breaking capacity appropriate to the supply and in accordance with local regulations A suitable switch or circuit breaker should be included in the installation It should be positioned so as to be easy to operate in close proximity to the equipment and clearly identified as the disconnecting device Earth
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