CVM-Q SERIES USER`S MANUAL
Contents
1. 21 7 3 Definition of the monitored network 22 7 4 Integration time n dte Pee dea de eene Pee dee dene 23 7 5 Choice of harmonic distortion calculating mode D or 24 7 6 Quality levels setting 24 T T Data co llection in mermlory 2 oerte ete tee te etd 27 7 8 Relay output alarms 5 28 8 SPEGIFIGATIONS icon Fe eat pe retia Pod eoa bebe e fei Ene Eee edo 31 9 SAFETY CONSIDERATIONS 33 70 MAINTENANCE esM 33 11 5 TEGBNIGAL SERBVIGE 1 3 entree Ite P Eo p eben eio Ms Ped 33 12 COMMUNICATIONS 34 12 1 To take into account 34 12 2 Connection to a PC 588 35 12 9 MODBUS ProtOoCOl tru reine i E PRA EA ERU RH ERST Kader 37 13 APPENDIX A Second SETUP of the CVM Q ccccccccececeseeeseeeseeeseeeeeeseeeeeeeeeeeeeseseeeeeeeeeeeeeeees 42 1 BASIC INSTRUCTIONS 1 1 Checking the contents of your package This manual is aimed to familiarize the user with the operation of the power supply quality analyzer model CVM Q in order to get the best from its features After receiving the analyzer please check the following points a The delivered material meets your order specifications b Af2. e Voltage secondary value Set the voltage secondary value at this point SETUP SECONDARY 001 Voltage secondary value Proceed as for the latest section NOTE Allowable transformation ratios depend on the programmed full scale value So the primary secondary ratio must not exceed bellow values for every case Full scale Primary Secondary 150 V 6666 300 V 3333 500 V 1999 7 3 Definition of the monitored network Set now the main specification of the monitored network e Rated voltage A right configuration of this point is essential since it is the reference for setting the levels of voltage dips voltage swells and interruptions SETUP V NOMINAL 230 V amp Rated voltage of the network If any voltage transformer is used for measuring action then the rated voltage to be set must be referred to the transformer secondary value e Rated frequency The calculation of the RMS value of each semi cycle is done by means of a fixed window over a period of one semi cycle The duration of this period is determined from the user programmed rated frequency SETUP Hz NOMINAL 90 Hz 87 frequency of the network 45 65 Hz Common values to be set are 50 and 60 Hz 7 4 Integration time To effectuate the calculation of the average maximum and minimum voltage and frequency values the CVM Q obtains one value each second This value corresponds to th
3. m CIRCUTOR ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q SERIES USER S MANUAL 981 307 02 GB CIRCUTOR S A USER S MANUAL CONTENT PAGE 1 BASIC INSTRUCTIONS t torn ce Ret 2 1 1 Checking the contents of your 2 UENIRE 3 129 Sately Warnltgs ttbi tte e DAE Eger SE ERR eerte E eve 3 1 4 Operation instructions 3 2 MAIN FEA TORE S tnde n ite rae teneis 4 JANAEYSIS MODES 6 4 DATA COLLECTION IN MEMORY AUTOMATIC 6 5 INSTALLATION amp STARTUP 5 ces aite ertet HR Pe Eee ee e E FERE a ERE 7 EAnclinmE eee 8 572 Connection terminals tiie aria eee e ee vago ele ee Edo ceca ei da ea 10 5 3 Connection drawings for the CVM Q 12 0 OPERATION MODE endete ut ete ta eph dde Nea 15 6 1 Voltage sCreen eco ette ing tet pec rt I Eee b ve Pte pero vd iate ende 16 6 2 Event 095 Screen eee ao iren iere pete ete net tete te Pc gern 16 6 3 HarmoriC SCIGOn uie oe sedenti pe 18 6 4 Harmonic content 8 18 fe gt SETTING THE e nt eer ertt a e d Pa de t e 19 7 1 Choice of connection mode 20 7 2 Transformation ratios of voltage 5 0
4. ON alarm activated gt relay closed OFF alarm deactivated gt relay open mE ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 31 8 SPECIFICATIONS Power supply see specifications on the rear part of the CVM Q CVM Q Indiscriminately 110 V 230 V a c Single phase or 110 V 300 V dcc Voltage tolerance 10 15 Frequency 50 60 Hz BUE OG 10 VA a c or 2 5 W d c Operation temperature 10 C to 65 C Humidity e E 5 to 95 without condensation Measuring Circuit Rated voltage 150 V a c 300 V a c 500 V acc Frequency 40 to 65 Hz Measuring circuit burden 0 25 Accuracy Voltages meds 0 5 96 of readout 1 digit Test conditions Direct voltage measurement Temperature between 5 C and 50 C Relative humidity between 5 and 95 without condensation Storage temperature 15 C to 70 C Mechanical Characteristics Connection Pluggable connection terminal Case material Self extinguishable VO plastic Protection Assembled unit frontal 55 Un assembled unit side and rear covers IP 31 Dimensions 144 x 144 mm depth 84 mm Weight 0 603 kg ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 32 Output relays features Maximum switching load 2500 VA Maximum switching volta
5. V 3x10 in decimal 212 0 V Hx x 10 in decimal 50 0 Hz THD V1 x 10 in decimal 1 3 96 THD V2 x 10 in decimal 1 2 96 THD x 10 in decimal 1 2 96 CRC character b Reading digital outputs relays Function 01 Inquiry Answer PP0100000008CRC PP peripheral No PP0101XXCRC Where XX hexadecimal byte gt translated to binary b7 b6 65 04 b3 b2 b1 bO bit bO relay1 1 ON 0 OFF bit b1 relay2 1 0 OFF mE ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 41 c Registers assigned to the CVM Q memory management Function Extension Inquiry Answer Deleting the quality EVQ NP050835FF00 CRC NP050835FFO0CRC file Deleting the STD NP050836FF00 CRHC NPO50836FFOOCRC standard file Deleting all files STD EVQ NP050837FF00 CRC NP050837FFOO0CRC NP Peripheral No ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 42 13 APPENDIX A Second SETUP of the CVM Q A second SET UP menu is accessible in order to perform the configuration of the CVM Q with other features different from factory supplied ones To access this menu proceed as follows Being the CVM Q powered off simultaneously press min keys Holding these keys pressed power the CVM Q on Following messages will be then shown on display a COMMUNICATION PROTOCOL MODBUS SETUP PROT
6. 5 6 7 8 910 11 12 e Power supply Note The instruments with D C power supply has not a fixed polarity for the supply circuit therefore the power supply cables can be Indiscriminately connected into terminals No 5 and 6 6 OPERATION MODE The quality analyzer has 1 two line led type display When the CVM Q is powered on following screens are successively shown CVM Q WXX XX 87 Software version C IECIT QOIS CARD TYPE XXXXXXXX XXXXXXXXXXXXXXXXXXXX Hardware configuration After some seconds the analyzer is ready for the regular operation and shows one of the available screens the voltage screen allows the screen in display to be changed max and min their use varies depending on the active screen at each moment reset the system is reset as if the analyzer would be powered off and then powered on back The most immediate result is that maximum and minimum values recorded will be automatically deleted from the internal memory During the setup process when the reset key is pressed this setup process will be exited without saving any modification that the user might have done this circumstance will depend on the setup section that is accessed when the reset action is carried out and the reset of the analyzer will be also completed The analyzer display will be automatically shutdown under following conditions When no key is pressed during more than 2 min
7. Enabled Disabled alarm Any parameter measured by the CVM Q MAXIMUM value MINIMUM value G Delay for the alarm conditions a Enabled Disable alarm SETUP ALARM 1 SETUP ALARM 1 yes no Alarm enabled Alarm disabled Set at this point the wish of using the relay output for alarm purposes If the choice is yes then the setup process of the alarm specifications will be accessed sections b c amp d b Setting the parameter to be controlled The user must set the parameter that will define the alarm condition for every single output relay SETUP ALARM VARI XXX Parameter under control Allowable electrical parameters that can be set as alarm conditions are these within the below table Parameter Fundamental 500 550 600 Harmonic 2 501 551 601 Harmonic 17 516 566 616 Harmonic 3 502 552 602 Harmonic 18 517 567 617 Harmonic 4 503 553 603 Harmonic 19 518 568 618 Harmonic 5 504 554 604 Harmonic 20 519 569 619 Harmonic 6 505 555 605 Harmonic 21 520 570 620 Harmonic 7 506 556 606 Harmonic 22 521 571 621 Harmonic 8 507 557 607 Harmonic 23 522 572 622 Harmonic 9 508 558 608 Harmonic 24 523 573 623 Harmonic 10 509 559 609 Harmonic 25 524 574 624 Harmonic 11 510 560 610 Harmonic 26 525 575 625 Harmonic 12 511 561 611 Harmonic 27 526 576 626 Harmonic 13 512 562 612 Harmonic 28 527 577 627
8. Harmonic 14 513 563 613 Harmonic 29 528 578 628 Harmonic 15 514 564 614 Harmonic 30 529 579 629 Harmonic 16 515 565 615 Harmonic 31 530 580 630 c Setting the maximum and minimum values SETUP ALARM HIGH XXXX The key will increase the value of the blinking digit 0 1 9 Use the key min to pass to the following digit SETUP ALARM LOW XXXX gt decimal point 4 stands for Example 230 0 gt gt 230 0 V 230 0 gt 230 000 V 230 kV d Setting the delay The user can set a delay time to be waited before the relay output activation when the alarm condition happens This delay therefore implies that the alarm will be activated only in case that the alarm condition is continuously happening during a certain time period delay SETUP ALARM DELAY XXXXS 557 Delay 0 to 3600 s This procedure is applied alike for the alarm deactivation case To access the next option just press gt the second relay output can be now configured SETOR ALARM 2 lt Setting the second relay alarm no Proceed equal than for the first relay When the user configuration process of the second relay is completed the new setup is saved in memory and the analyzer starts working according to it ALARM ACTIVATION Alarms operation depends on the set values of MAXIMUM and MINIMUM options MIN MAX max gt min MIN MAX max lt min
9. both connected through a wire with a minimum cross section of 1 mm 5 2 Connection terminals e CVM Q RS 485 see lable on the rear part 13 14 15 16 17 18 19 20 21 22 23 24 500V 300V 150V Ni 500V 300V 150v 500 300V 150V 12 250V 3A 8 RLL R2 POWER RS485 pa era NC NC NC a 1 2 3 4 5 6 7 8 9 10 11 12 No Terminal description No Terminal description 1 Relay RL1 Output 13 Input L1 500 2 Relay RL1 Common 14 Input L1 300 V 3 Relay RL2 Output 15 Input L1 150 V 4 Relay RL2 Common 16 Common L1 5 Supply AL1 17 Input L2 500 V 6 Supply AL2 18 Input L2 300 V 7 Not used 19 Input L2 150 V 8 Not used 20 Common L2 9 Not used 21 Input L3 500 V 10 RS 485 22 Input L3 300 V 11 85 485 23 Input L3 150 V 12 RS 485 GND 24 Common L3 Note The instruments with D C power supply has not a fixed polarity for the supply circuit therefore the power supply cables can be Indiscriminately connected into terminals No 5 and 6 CVM Q RS 232 see lable on the rear part 13 14 15 500V 300V 150V Lu 12 250 51 uc 1 2 3 4 5 6 16 17 18 19 20 500V 300V 150v A 7 8 21 22 23 24 500v 300V 150V RS232 m RTS Tx Rx 9 10 11 12 CAT 111 Terminal description No Terminal description 1 Relay RL1 Output 13 Input L1 500 V 2 Relay RL1 Comm
10. by pressing the key RESET some latest modifications might not be saved in memory or also reach the end of this 2 9 SETUP mode
11. of n Words 16 bits 2 bytes This function permits to read all the electrical parameters measured by the CVM Q Each parameters is a 32 bits long hence two words are required to inquiry for a parameter FUNCTION 05 Writing one relay FUNCTION 35 23 Hex File reading Exception to the MODBUS protocol a Registers assigned to different parameters measured by the CVM Q MODBUS REGISTERS PARAMETER Units HEXA DECIMAL longs PRESENT MAXIMUM MINIMUM Value Value Value Phase voltage V Vx10 00 01 FO F1 126 127 Phase voltage V2 Vx10 02 03 F2 F3 128 129 Phase voltage V8 Vx10 04 05 F4 F5 12A 12B Frequency Hz x 10 06 07 F6 F7 12C 12D THD VL1 x 10 08 09 F8 F9 12E 12F THD VL2 x 10 0A 0B FA FB 130 131 THD VL3 x 10 0C 0D FC FD 132 133 NOTE The maximum number of parameters 1 parameter 1 can be read in one transmission is 62 7C Hex long of 32 bits that MODBUS REGISTERS PARAMETER Units HEXA DECIMAL longs L1 L2 L3 Fundamental V x10 OE OF 4E 4F 8bE 8F Harmonic 2 96 x10 10 11 50 51 90 91 Harmonic 3 96 x10 12 13 52 53 92 93 Harmonic 4 96 x10 14 15 54 55 94 95 Harmonic 5 96 x10 16 17 56 57 96 97 Harmonic 6 96 x10 18 19 58 59 98 99 Harmonic 7 96 x10 1A 1B 5A 5B 9A 9B Harmonic 8 96 x10 1C 1D 5C 5D 9C 9D Harmonic 9 96 x10 1E 1F 5E 5F 9E 9F Harmonic 10 96
12. set a different value for the voltage swell event starting and ending point Thus a voltage swell event starts when the voltage swell threshold is exceeded and ends when the voltage value is under the value defined by the subtraction of the voltage swell hysteresis value from the voltage swell threshold SETUP HYSTE SWELL 85 9 of the voltage swell threshold 096 9 995 e Voltage dip hysteresis A voltage dip hysteresis value can be defined to set a different value for the voltage dip event starting and ending point Thus a voltage dip event starts when the voltage dip threshold is not reached and ends when the voltage value is over the value defined by the addition of the voltage dip hysteresis value to the voltage dip threshold SETUP HYSTE DIP 557 9 of the voltage dip threshold X X 5 0 9 9 e Interruption hysteresis An interruption hysteresis value can be defined to set a different value for the interruption event starting and ending point Thus an interruption event starts when the interruption threshold is not reached and ends when the voltage value is over the value defined by the addition of the interruption hysteresis value to the interruption threshold SETUP HYSTE INTER 5 9 of the interruption threshold 5 0 9 9 7 7 Data collection in memory The CVM Q is equipped with an on board memory to periodically save logs from all measured electrical para
13. values higher than 100 Voltage dip and interruption levels must be always set to a values lower than 100 96 The most usual value for the hysteresis options is 1 96 Levels to user defined are below ones V Swell Hysteresis Nominal voltage Hysteresis Dip Hysteresis Interruption When and event happens the analyzer will save in memory a record with the following information about the event the instant of the event occurrence the duration of the event the maximum or minimum voltage of the event depending on the event type and the previous voltage to the event of voltage swell threshold Every semicycle whose RMS value is over the defined limit value defined as a percentage of the rated voltage is stated to be a voltage swell SETUR W SWB hli XXX X 85 9 of the rated voltage 100 150 of voltage dip threshold Every semicycle whose RMS value is below the defined limit value defined as a percentage of the rated voltage is stated to be a voltage dip SETURI Vo DL KRE Z 87 9 of the rated voltage 50 95 of interruption threshold Any voltage drop whose value is below the defined limit value defined as a percentage of the rated voltage is stated to be an interruption SETUP V INTERRUP XXX 87 of the rated voltage 1 20 e Voltage swell hysteresis A voltage swell hysteresis value can be defined to
14. OCOL Communication protocol in use modbus Key to validate the choice and pass to the next set up screen ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 43 b SETTING COMMUNICATION PARAMETERS SETUP COM DERAULT no Communication parameters setting If YES is chosen then the analyzer is set to 001 9 600 8 bits 1 bit If NO is chosen then pressing following options will successively appear SETUP PERIPHERAL lt Peripheral No 001 001 to 255 SETUP BAUD RATE 59 Baud rate 9600 bauds 1200 2400 4800 9600 19200 bauds SETUP PARITY 59 parity no No even and odd SETUP DATA BITS 59 Data length bites 8 bits SETUP STOP BITS Stop bits bits 1 or 2 ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 44 c SETUP LOCKING OR UNLOCKING SETUP LOCK SETUP LOCK key unlock key lock Press the key max to modify the choice f LOC is set when the SETUP is accessed the configuration parameters can be visualized but cannot be modified modify the previously set option a 4 figure password is required to be entered in case that this password is not correct this blinks and the previous menu is again accessed CVM Q PASSWORD 1234 To exit this setup mode the user can either press the key RESET at any moment WARNING if the setup is exited
15. d in the PC RS 232 type output RS 232 connection will be carried out by means of a twisted and screened cable with a minimum of 5 wires with a maximum distance between the CVM Q and the P C of 15 m point to point bus 12 2 Connection to a PC set e Connection of a RS 485 network to a PC RS 232 0 CONVERTER RS 232 RS 485 RS 485 000 000 000 Feas If you are using the RS485 232 converter with RTS control ability code 770208 then the connection of the pin 7 in the RS 232 side is not required CVM Q CESS mE ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 37 12 3 MODBUS Protocol The CVM Q analyzer can communicate by means of the MODBUS protocol as it is following described When the CVM Q communicates with MODBUS protocol it uses the RTU mode Remote Terminal Unit Each 8 bits byte in a message contains two 4 bits hexadecimal characters The format for each byte in RTU mode is Code 8 bits binary hexadecimal 0 9 A F Two hexadecimal characters contained in each 8 bits field of the message Bits per Byte 8 data bits CHECK ERROR Field CRC type Cyclical Redundancy Check MODBUS FUNCTIONS IMPLEMENTED IN THE CVM Q FUNCTION 01 Reading of the relay status FUNCTION 03 amp 04 Reading
16. e average of RMS values which have been calculated within the sliding window defined by the user A S V Ta Sliding Window ty t The most common value is 1 s which means that the instantaneous values will be then displayed SETUP MEASURE TIME 015 C Period between 1 and 60 s Note This above value does not affect over the detection process of quality events voltage dip interruption and voltage swell 7 5 Choice of harmonic distortion calculating mode D THD Two modes for the harmonic distortion calculation and further record into memory can be selected D 96 total value of the harmonic distortion referred to the fundamental value b THD 90 total value of the harmonic distortion referred to the RMS value The selected option will be the one shown in screen E edo gos oe Bo DEDE Momm o STHD 6D or To select any option just press max or min to switch between the two available options Press to validate the choice and pass to the next setup option 7 6 Quality levels setting For the detection of quality events voltage dips interruptions and voltage swells a right configuration of following described sections becomes essential to obtain reliable results All levels defined as events are referred to the user programmed rated voltage See Section 7 3 Notes The voltage swell level must be always set to a
17. e contact a qualified service representative 1 4 Operation instructions The CVM Q is a programmable instrument so offering diverse operation modes which can be user selected from the available programming menus Please before initiating works with the CVM Q thoughtfully read the paragraphs involving INSTALLATION amp STARTUP and SETTING THE CVM Q UP in order to select the most suitable operation mode for your requirements Note that with the instrument powered on the terminals could be dangerous to touching and cover opening actions or elements removal may allow the access to dangerous parts Therefore the instrument must not be used until this is completely installed 2 MAIN FEATURES The CVM Q is a programmable measuring instrument offering several operation possibilities selectable in its SET UP option Before power supplying the instrument read the CONNECTIONS and SET UP sections and choose the most suitable operation mode for getting your desired data The CVM Q is an analyzer expressly developed for the supervision of the quality of electric power supply for that reason it only provides voltage inputs isolated by means of transformers Among their main characteristics we can remark following Wide range of both supply and measuring voltages Connection to either 3 or 4 wire distribution systems On board battery which permits the instrument to go on recording works even in case of supply voltage lo
18. either visualized and modified Or otherwise DINE ENS locked SETUP when the SETUP is accessed configuration parameters can be visualized but these cannot be modified Once into the SETUP use the keyboard to select different options The key validates de value and pass to the next menu The key max permits the user to select among different options in a menu or to increase a digit when a variable is being entered The key min permits the user to move the cursor along the digits Different options are following shown in a sequential mode Choice of connection mode star delta and voltage inputs in use Voltage transformation ratio Definition of the monitored network rated voltage rated frequency Integration period Choice of harmonic distortion calculating mode D or THD Quality levels setting Data collection in memory On board clock setting Relay output alarms setting ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 20 7 1 Choice of connection mode e Star Delta The CVM Q can either work in 3 or 4 wire distribution systems This choice is defined by the connection mode but this mode must be also set in the analyzer SETUP A N SETUR A N yi2 This choice in the setup is basically aimed for information purposes as this permits the user to know if recorded values refer t
19. ely put out of service The instrument s design allows a quick replacement in case of any failure 11 TECHNICAL SERVICE For any inquiry about the instrument performance or If any failure happens please contact to CIRCUTOR s technical service CIRCUTOR S A After sales service Lepanto 49 08223 TERRASSA BARCELONA SPAIN Tel 34 93 745 29 00 fax 34 93 745 29 14 E mail central circutor es 12 BEN Page 34 One or some CVM Q units can be connected to a PC With this system we can get all the parameters in one central point of reading The CVM Q has a serial RS 485 or RS 232 type output according to the model If we connect more than one device to the same communication line RS 485 we have to assign to each discrete analyzer a different code or direction from 01 to 255 since the PC needs the identification of every measuring point 12 1 To take into account PROTOCOL MODBUS Question Answer CVM Q DEFAULT CONFIGURATION 001 9 600 8 bits N 1 bit Available baud rates 1 200 2 400 4 800 9 600 19 200 bauds RS 485 type output The RS 485 connection will be carried out by means of a twisted and screened cable with a minimum of 3 wires with a maximum distance between the CVM Q and the last peripheral of 1 200 m The CVM Q uses a RS 485 communication bus that enables the connection of a maximum of 32 devices in parallel Multi point bus per each single port use
20. ge 400 V acc Maximum switching current 10A Mechanical endurance 3x10 operations At full load 250 V 10A Electrical endurance 00 1x10 operations Maximum operation cadence 450 operation hour Safety Category III 300 V a c 520 a c as 61010 Protection against electric shock by class double insulation m Standards 664 VDE 0110 UL 94 EN 61010 1 Dimensions 144 144 ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 33 9 SAFETY CONSIDERATIONS The user should take into account all installation instructions indicated in sections INSTALLATION amp STARTUP and TECHNICAL SPECIFICATIONS of this manual Notice that with the instrument powered on the terminals could be dangerous to touching and cover opening or elements removal actions may allow the access to dangerous parts The analyzer is factory shipped in proper operating conditions 10 MAINTENANCE The CVM Q does not require any special maintenance No adjustment maintenance or repairing action should be done over the instrument open and powered and should those actions are essential high qualified operators must perform them Before any adjustment replacement maintenance or repairing operation is carried out the instrument must be totally disconnected from any power supply source When any protection failure is suspected to exist the instrument must be immediat
21. ious setting and connection arrangement Most remarkable operation settings are following enumerated ones e Measurement and collection in memory of main power quality parameters voltage values and harmonics e Setting of a voltage threshold to define diverse event occurrences voltage dips voltage swells and interruptions Also an optional setting of a hysteresis value for each individual threshold e Accomplishment of quality analysis either over 3 wire or 4 wire distribution systems In accordance to the choice all quality measurement will be referred to the line to neutral or line to line voltage This choice is set though an internal connection 4 DATA COLLECTION IN MEMORY AUTOMATIC MODE The CVM Q is equipped with an on board clock for both date and time that permits the automatic data recording process in memory to be set at regular time periods So the different information recorded by the CVM Q into its on board memory is distributed among two file types e STD file File which contains all values which are periodically recorded voltage frequency voltage harmonic distortion and the harmonic content e EVQ file This file contains all events observed in the electric power supply voltage dips voltage swells interruptions together with some supplementary information about these events instant of the event occurrence maximum minimum voltage average voltage The CVM Q is equipped with an on board rota
22. iscriminately 110 V 230 V a c Single phase or 110 V 300 V d c On request other voltages Supply voltage tolerance 1026 4 15 Frequency a c 50 60 Hz Connection terminal Terminals 5 6 Power supply Burden 10 VA a c or 2 5 W d c b Maximum voltage in the voltage measuring circuit Standard Acc to connection 500 V a c 300 V 150 V a c 40 to 65 Hz C Operation conditions Operation temperature range 10 to 50 C Humidity 510 95 96 without condensation Altitude below 2 000 m d Safety Designed to meet protection class III 300 V a c as per EN 61010 Protection against electric shock by class Il double insulation Assembly AN Instrument is to be mounted on panel cut out 138 x 138 mm as per DIN 43 700 All connections keep inside the cabinet Note that with the instrument powered on the terminals could be dangerous to touching and cover opening actions or elements removal may allow accessing dangerous parts Therefore the instrument must not be used until this is completely installed The instrument must be connected to a power supply circuit protected with gl type IEC 269 or M type fuses rated between 0 5 and 2 A This circuit should be provided with a circuit breaker or any equivalent element to connect ON or disconnect OFF the instrument from the power supply network The supply and measuring voltage circuits will be
23. meters Voltage frequency THD e Recording period Integration period for data recording into memory of all electrical parameters to be further analyzed and managed from a PC or PLC set SE LUE 00m15s 5 Value between 5 s and 60 minutes e Deleting files Always that any configuration parameter of the CVM Q is modified all data recorded into the on board memory will be automatically deleted Besides this recorded data can also be manually deleted if required SETUP DELETE EVQ amp Deleting the quality events file no SETUP DELETE STD Deleting the standard file STD no e Files size In order to obtain the maximum efficiency from the analyzer on board memory capacity 1 Mbyte the user can re arrange the allocated space for each kind of logs SLAE REG SID lave 803 20 X Value between 10 95 and 90 The key increases the allocated memory space for the STD file The key min reduces the allocated memory space for the STD file Note The modification of this option automatically gives rise to the loss of all data recorded in the on board memory e On board clock setting SETUP DATE 04 07 01 14 55312 557 Setting time and date of the on board clock 7 8 Relay output alarms setting Every single relay output of the CVM Q can be set to act as an alarm Thus the user must define for each output the following parameters
24. o line to neutral U1 U2 and U3 or line to line voltages U12 U23 and U31 a To select one of the voltage options just press the black key max or min and both options will alternately appear b When you get in the display the desired option just press the key to validate it and access the next setup option e Voltage inputs in use You must define the voltage inputs that are used for the CVM Q measuring actions SEIUP SCALE XXX Voltage inputs 150 V 300 V and 500 V This parameter is essential for the display and record of values under the right scale 7 2 Transformation ratios of voltage transformers Set the transformation ratio of voltage transformers used for measuring purposes In case of a direct measurement of the voltage no voltage transformer used then just set the same primary and secondary value for instance 00001 001 e Voltage primary value You will see in screen SETUP PRIMARY 000001 Voltage primary value a To write or modify the value just repeatedly press the max key and the blinking digit value will be increased b When the value on screen is the proper one we can pass to the next digit by pressing the min key in order to modify the other values c When the blinking digit is the last one pressing the min key we go back to the initial value set values can be again modified if necessary d Press gt to pass to the next setup option
25. on 14 Input L1 300 V 3 Relay RL2 Output 15 Input L1 150 V 4 Relay RL2 Common 16 Common L1 5 Supply AL1 17 Input L2 500 V 6 Supply AL2 18 Input L2 300 V 7 Not used 19 Input L2 150 V 8 HS 232 CTS 20 Common L2 9 RS 232 RTS 21 Input L3 500 V 10 RS 232 Tx 22 Input L3 300 V 11 RS 232 Rx 23 Input L3 150 12 RS 232 GND 24 Common L3 Note The instruments with D C power supply has not a fixed polarity for the supply circuit therefore the power supply cables can be Indiscriminately connected into terminals No 5 and 6 5 3 Connection drawings for the CVM Q a Three phase network 4 wires low voltage L1 L2 L3 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 Power supply Note The instruments with D C power supply has not a fixed polarity for the supply circuit therefore the power supply cables can be Indiscriminately connected into terminals No 5 and 6 b Three phase network 3 wires low voltage L1 L2 L3 13 14 15 16 17 18 19 20 21 22 23 24 5 6 8 9 10 11 12 7 Power supply Note The instruments with D C power supply has not a fixed polarity for the supply circuit therefore the power supply cables can be Indiscriminately connected into terminals No 5 and 6 Three phase network wires 2 P T 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4
26. ry memory for data collection which means that once this memory is full new values overwrite oldest ones Therefore if no data is wanted to be lost data must be retrieved from the memory before oldest values will be overwritten The on board memory for data storage has two independent allocated areas in the way that the following information is saved into each area First area Information about periodical logs STD Seconds area Captured events EVQ The size of the memory areas is user programmable which enables the memory to be arranged according to the specific demands of our installation 5 INSTALLATION amp STARTUP The manual you hold in your hands contains information and warnings that the user should respect in order to guarantee a proper operation of all the instrument functions and keep its safety conditions The instrument must not be powered and used until its definitive assembly on the cabinet s door If the instrument is not used as manufacturer s specifications the protection of the instrument can be damaged When any protection failure is suspected to exist for example it presents external visible damages the instrument must be immediately powered off In this case contact a qualified service representative 5 1 Installation Before powering the instrument for the first time please check following points a Power supply see rear part of your CVM Q Standard supply Ind
27. ss On board memory for saving all parameters measured by the analyzer Communication via RS 232 or RS 485 according to the model The extensive supply voltage range of the CVM Q together with its on board battery which enables the analyzer to go on operation during about 2 minutes in case of a supply voltage loss assure the continuity of the measuring and recording processes before any event related to a voltage drop interruption or dip As an analyzer of the quality of the electric power supply the CVM Q only provides voltage inputs Over these inputs it will analyze all cycles from all three voltage phases to detect the occurrence of any event voltage dip voltage swell interruption CVM Q analyzers are equipped with an on board memory for the collection of quality parameters as well as of events The different information recorded by the CVM Q into its on board memory is distributed among three file types e STD file File which contains all values which are periodically recorded voltage frequency voltage harmonic distortion and the harmonic content e EVQ file This file contains all events observed in the electric power supply voltage dips voltage swells interruptions together with some supplementary information about these events instant of the event occurrence maximum minimum voltage average voltage 3 ANALYSIS MODES analyzers can run under different operation modes according to the prev
28. ter unpacking check that the instrument has not been damaged in transit The standard set includes the pertinent user s manual The manual you hold in your hands contains information and warnings about the CVM Q that the user should respect in order to guarantee a proper operation of all the instrument functions and keep its safety conditions AN Before powering the analyzer on please check following points a Supply voltage see specifications in the lable stuck on the rear side Standard Indiscriminately 110 V 230 V a c Single phase 50 60 Hz or 110 V 300 V d c On demand Other supply voltages b Maximum voltage in the voltage measuring circuit Standard According to connection 500 V a c 300 V a c 150 V a c On demand Other models 1 2 Models Code Model RS 485 Relay output 7 71 098 CVM Q RS485 C2 X X 7 71 097 CVM Q RS232 C2 X X 1 3 Safety warnings The manual you hold in your hands contains information and warnings about the CVM Q that the user should respect in order to guarantee a proper operation of all the instrument functions and keep its safety conditions If the instrument is not used as manufacturer s specifications the protection of the instrument can be damaged When any protection failure is suspected to exist for example it presents external visible damages the instrument must be immediately powered off In this cas
29. utes When the analyzer is supplied by its on board battery The display will be on again when Any key is pressed After 30 seconds from the recovery of the mains supply 6 1 Voltage screen Display of the voltage measured at each phase as well as announcement of any possible event that might be happening in the network at the present moment ELT i213 The symbol next each voltage can vary so that it indicates Right voltage inside allowable range Interruption Voltage swell Voltage dip R Se gt Use the max and min keys to view the voltage maximum and minimum value from the last time that these values were reset to zero 6 2 Event logs screen Any event recorded into the on board memory can be viewed in screen Put L2 L3 02 07 01 11 22 38 49 Event initial date Se uh 206 wv amp Event type phase and average voltage The record marked with is the last record within the file that is the most recent one The type of the recorded event is defined according to the below table Message Event type SWELL Voltage swell DIP Voltage dip INTER Interruption Use the keys and min to cyclically move along the recorded events max Posterior event to the viewed one min Preceding event to the viewed one If no recorded event exists then you
30. will read NOT No recorded event exists memory 6 3 Harmonic screen Display of the of the voltage harmonic distortion at each phase These values are calculated in relation to the rated frequency which has been user programmed in the pertinent menu option 1 9 91 4 84 8 d REO 91 4 94 8 50 0 Hz 500 Hz SD Once in this screen by pressing the key the user can see the maximum value of the THD or D rate that has been measured in the installation 6 4 Harmonic content screen Display of the voltage harmonic content at each phase Two visualization screens are available Put L2 aac Harmonic 1 The fundamental amplitude Volt HARMONIC 1 ELT i213 ID IESUS X Harmonic 2 Harmonic 31 Ratio of the 2 HARMONIC 2 voltage of every single harmonic to the fundamental amplitude The application of each key is for this case is as follows min To view the lower order harmonic max To view the higher order harmonic 7 SETTING THE CVM Q UP The setup procedure of the CVM Q is accomplished by means of several SETUP options 57 For accessing the setup menu the keys amp min must be simultaneously pressed once the analyzer is at the main screen When accessing the SETUP the below message is shown for some seconds in screen Co a unlocked SETUP when the SETUP is accessed configuration parameters can be
31. x10 20 21 60 61 AO0 A1 Harmonic 1 1 96 x10 22 23 62 63 A2 A3 Harmonic 12 96 x10 24 25 64 65 A4 A5 Harmonic 13 96 x10 26 27 66 67 A6 A7 Harmonic 14 96 x10 28 29 68 69 A8 A9 Harmonic 15 96 x10 2A 2B 6A 6B AA AB Harmonic 16 96 x10 2C 2D 6C 6D AC AD Harmonic 17 96 x10 2E 2F 6E 6F AE AF Harmonic 18 96 x10 30 31 70 71 BO B1 Harmonic 19 96 x10 32 33 72 73 B2 B3 Harmonic 20 96 x10 34 35 74 75 B4 B5 Harmonic 21 96 x10 36 37 76 77 B6 B7 Harmonic 22 96 x10 38 39 78 79 B8 B9 Harmonic 23 96 x10 3A 3B 7A 7B BA BB Harmonic 24 x10 3C 3D 7C 7D BC BD Harmonic 25 96 x10 3E 3F Harmonic 26 96 x10 40 41 80 81 CO0 C1 Harmonic 27 96 x10 42 43 82 83 C2 C3 Harmonic 28 96 x10 44 45 84 85 C4 C5 Harmonic 29 96 x10 46 47 86 87 C6 C7 Harmonic 30 96 x10 48 49 88 89 C8 C9 Harmonic 31 96 x10 4A 4B 8A 8B CA CB mE ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY CVM Q 40 EXAMPLE INQUIRY 00 00 08 47 00 00 08 48 00 00 08 48 00 00 01 F4 00 00 00 OD 00 00 00 0C 00 00 00 0C 23 2A OA 04 00 00 00 OE 70 B5 Peripheral number 10 in decimal Reading function Initial address first register Number of registers to be read 14 CRC character OA 04 1C 00 00 08 47 00 00 08 48 00 00 08 48 00 00 01 00 00 00 OD 00 00 00 OC 00 00 00 OC 23 2A Answering analyzer number 10 in decimal Reading function the one used for the inquiry Bytes received 28 V 1x10 register 00 Hex in decimal 211 9 V V 2x10 in decimal 212 0 V
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