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User manual for meter with U/I input PD96

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Summary of Contents for PD96

Page 1: ...ead the user s manual carefully before starting to use the unit Producer reserves the right to implement changes without prior notice 25 03 2010 V 2 04 Radeberger Stra e 21 D 01900 Gro r hrsdorf E Mai...

Page 2: ...mming menu 25 7 2 Parameters edition 26 7 2 1 Numeric parameters digit change mode 27 7 2 2 Numeric parameters slide change mode 27 7 2 3 Switch parameters LIST type 27 7 3 Menu description 28 7 3 1 r...

Page 3: ...I input PD96 3 10 2 Examples of calculations 44 11 The modbus protocol handling 47 11 1 List of registers 47 11 2 Transmission error description 50 11 3 Examples of query answer frames 51 12 Default...

Page 4: ...sponsible for executing the installation according to this manual local safety and EMC regulations The unit must be properly set up according to the application Incorrect configuration can cause defec...

Page 5: ...get high protection level the keyboard is mounted under transparent cover To allow user to changepresets without opening the cover an IR sensor is mounted Remote controller keyboard isequivalent to th...

Page 6: ...25 C one digit for 0 10 V range Voltage input resistance 50 kW Temperature stability 50 ppm C Display range 999 9999 plus decimal point Accepted prolonged input overload 20 Outputs relay 0 or 2 NO 1A...

Page 7: ...2000 meters above sea level Screws tightening max torque 0 5 Nm Max connection leads diameter 2 5 mm2 Safety requirements according to PN EN 61010 1 installation category II pollution degree 2 voltage...

Page 8: ...amage Any transportation damage must be immediately reported to the carrier Also write down the unit serial number on the housing and report the damage to the manufacturer Attached with the unit pleas...

Page 9: ...arting assembly Check the correctness of the performed connections prior to switching the unit on To install device on the wall a pinholes should be made Figure 4 1 presents dimensions of the device a...

Page 10: ...ons and laws In order to secure against accidental short circuit the connection cables must be terminated with appropriate insulated cable tips Tighten the clamping screws The recommended tightening t...

Page 11: ...case of magnetically induced interference the use of twisted couples of signal cables so called spirals is recommended The spiral best if shielded must be used with RS 485 serial transmission connecti...

Page 12: ...User manual for meter with U I input PD96 12 Figure 4 3 Terminals description relay outputs Figure 4 4 Terminals description OC type outputs Figure 4 5 Connection of 2 wire current converters...

Page 13: ...While use the relay outputs for switching of inductive loads coils contactors power relays electromagnets motors etc it is required to use additional suppression circuit typically capacitor 47nF min 2...

Page 14: ...User manual for meter with U I input PD96 14...

Page 15: ...ial connection of multiple units is made or serial connection with other device without galvanic separation of RS 485 interface is made then RS 485 interface separators must to be used certainly Figur...

Page 16: ...p can be closed without separator G Calculation of maximal allowable resistance of separator s input Maximal resistance of the input RG max and wires RW max are calculated for circuit from Figure 4 15...

Page 17: ...and Ug 5V then If current loop is closed without the separator G then sum of measurement input resistance RB max of device B Figure 4 15 and connections resistance RW max should be not grater than re...

Page 18: ...nternal components and shorten thefault free time of unit operation In cases where the unit gets dirty do not clean with solvents For cleaning use warm water with small amount of detergent or in the c...

Page 19: ...l v Functions Change of the present menu Modification of the parameter value Change of the display mode 6 Principle of operation After turning the power supply on device ID and software version are sh...

Page 20: ...Cu menu user can change the value of particular threshold pressing button ENTER see parameters edition Input type range of displaying values characteristic of conversion decimal point position and mea...

Page 21: ...of the relay outputs The control of the object measured signal is realized via relay outputs Front panel LEDs named R indicates the state of particular relay output If device is not equipped with one...

Page 22: ...the signal is contained in the second one Figure 6 4 One threshold control of the relay LED outputs Figure 6 5 Two threshold control of the relay LED outputs The relay outputs and LEDs named R can be...

Page 23: ...and an example values of other parameters Description A B C D points where measured signal exceeds border values expected value allowed deviation BON BOFF DON DOFF relays state changes moments for t...

Page 24: ...r during at least t on see points BON DON Figure 6 6 a d e Similarly the relay will be turned off if time toFF elapse since the input signal value exceeds any of the border values see points BOFF DOFF...

Page 25: ...nts where measured signal exceeds border values expected value allowed deviation BON BOFF CON COFF EON EOFF relays state changes moments for t on 0 toFF 0 tA tB tC t0 time periods while input signal i...

Page 26: ...utside of threshold values zone B 7 Device programming The device menu allow user to set all parameters connected to operation of measurement input control modes critical situations behaviour communic...

Page 27: ...ice Selection of sub menu or parameter for editing Name of selected item submenu or parameter is displayed Operation of ENTER button depend on present menu position if the name of some sub menu is dis...

Page 28: ...sed and held while button is still pressed the increasing slow down and will be kept on lower speed To decrease edited value press or press and hold v button only The decreasing became quickest as lon...

Page 29: ...w if they were not approved by ENTER button after the SEt ask and come backto menu 7 3 Menu description password checking If some password different from 0000 is set then every enter to main menu foll...

Page 30: ...SEtP HYSt SEt2 HYSt SEtP HYSt or SEt2 HYSt do not exceeds the measure range Additionally in two threshold mode modE in or out the hysteresis for both thresholds must not cover each other in other cas...

Page 31: ...ds appropriate border value defined with threshold and hysteresis at least t on time t on range 0 99 9 defined with 0 1 sec resolution Unit of this parameter is set by unit parameter toFF turn off del...

Page 32: ...on the relay will be turned on in the critical situations even if his parameter modE noAC 7 3 2 inPt menu This menu presets the measurement input tYPE type of the input sensor This parameter can be s...

Page 33: ...Ar USEr the parameters Lo C and Hi C are not available for modification due to their values are calculated from defined characteristic AddP this menu allow user to add single point to the user defined...

Page 34: ...the user defined characteristic is displayed for about approx 1 5 sec After that device waits for selection of point being edited by v buttons The short pressing of ENTER button causes by switching be...

Page 35: ...expression Imin 4 mA 4 mA Lo r The Lo r value can be set from 0 to 99 9 Parameter Hi r determines the upper border of the permissible range accordingly to the expression for all modes For example if i...

Page 36: ...value equal at least PEA inv drops drop and next peak of the input signal of value equal at least PEA PEA minimal detected signal change classified as peak or drop see Figure 6 3 timE maximum time of...

Page 37: ...Division only A r1 A r2 this option permits user on or prohibits oFF to modify the thresholds of the relays LEDs R1 R2 without knowledge about user password 7 3 6 rS menu This menu is connected with...

Page 38: ...485 interface This additional delay allows the device to work with poor RS converters which do not works properly on baud rates higher than 19200 This parameter can be set to one of values Std answer...

Page 39: ...U I input PD96 39 7 3 9 SErv menu This menu contains the parameters for authorized service only To enter this menu proper service password must be entered Improper settings can causes of damage of the...

Page 40: ...User manual for meter with U I input PD96 40...

Page 41: ...ed that current input is selected and all calculations are related to this input When voltage input is selected calculations are similar be sure of particular ranges and units The first step to comput...

Page 42: ...ed by fixed coefficients determined by Lo C and Hi C parameters when the normalized results is equal 0 then value Lo C is displayed and when the normalized results is equal 1 then value Hi C is displa...

Page 43: ...igure 10 2 Normal Lo C Hi C and inverted Lo C Hi C characteristic 10 1 3 Square root characteristic The normalized result is rooted and further conversion is done as for linear characteristic Conversi...

Page 44: ...d see Menu inPt Due to the normalized result In the device computes specific segment e g for characteristic from figure below and In 0 65 the segment between points X 50 0 and X 70 0 will be chosen Le...

Page 45: ...and Hi r 10 0 then permissible input currents range will be equal 3 2 mA 22 mA Lower border of the range is the result of calculations 4 mA 4 mA 20 and the higher 20 mA 20 mA 10 Example 2 The normali...

Page 46: ...rs Lo C and Hi C equal to 300 and 1200 respectively The calculations will be done for there different input currents from example 2 a Iin 10 mA and In 0 375 Accordingly to expression on page 37 for li...

Page 47: ...u inPt The calculations will be done for three different input currents from example 2 so in calculations some of the segments will be used only Let the following points will be given X1 00 0 Y1 50 0...

Page 48: ...meters 1 start bit 8 data bits 1 or 2 stop bit 2 bits are send 1 and 2 bits are accepted when receive no parity control Baud rate selectable from 1200 to 115200 bits second Transmission protocol MODBU...

Page 49: ...User manual for meter with U I input PD96 49...

Page 50: ...User manual for meter with U I input PD96 50...

Page 51: ...not defined if X coordinate of this point is equal 8000h After writing both X and Y coordinate the point is defined and used in calculation of result The coordinates of any point can be changed at an...

Page 52: ...Lo byte COUNT H L No of registers to read write Hi and Lo byte BYTE C Data byte count in answer frame DATA H L Data byte Hi and Lo byte CRC L H CRC error check Hi and Lo byte 1 Read of the displayed...

Page 53: ...ata identification code 21 F0h 3 Change of the device address from 1 to 2 write to reg 20h Data H 0 DATA L new device address 2 The answer the same as the message 4 Change of baud rate of all devices...

Page 54: ...ber of registries in one frame COUNT L the count of being read registers max 16 The answer DATA H1 L1 reg 01h 10 displayed value 1 0 DATA H2 L2 reg 02h 0 no errors DATA H3 L3 reg 03h 1 decimal point p...

Page 55: ...User manual for meter with U I input PD96 55...

Page 56: ...User manual for meter with U I input PD96 56...

Page 57: ...User manual for meter with U I input PD96 57 Radeberger Stra e 21 D 01900 Gro r hrsdorf E Mail info dks engineering de Tel 49 35952 4294 65 https www dks engineering com...

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