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Connection 

 

4.4 Connecting to the RS485 bus 

PAC1020 
Equipment Manual, 05/2020, L1V30610008B-01 

35

 

4.4

 

Connecting to the RS485 bus 

Procedure 

Connect the PAC1020 power monitoring device to the RS485 bus via the integral interface. 

Please pay attention here to the general topology of the two-wire line. 
1.

 

Connect all three lines to the screw terminals. 

2.

 

Ensure a bus terminating resistance is set at the first and last communication node. 

Block diagram 

 

TER 

Bus termination resistor (termination) 

PU 

Pull-up resistor 

PD 

Pull-down resistor 

①

 

Grounding of the cable shield 

②

 

Grounding of the common line, preferably only at one point for the whole bus 

Figure 4-9 

Block diagram: General RS485 topology 

Summary of Contents for 7KM1020-0BA01-1DA0

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Page 3: ...0 Equipment Manual 05 2020 L1V30610008B 01 Introduction 1 Description 2 Installation 3 Connection 4 Commissioning 5 Operation 6 Parameterizing 7 Security features 8 Service and maintenance 9 Technical data 10 Dimensional drawings 11 Appendix A ...

Page 4: ... only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING Siemens p...

Page 5: ...3 Energy counters 15 2 4 Digital inputs and outputs 16 2 4 1 Digital input 16 2 4 2 Digital output 17 2 5 RS485 interface 18 3 Installation 21 3 1 Panel mounting 23 3 1 1 Mounting dimensions 23 3 1 2 Installation steps 23 3 2 Deinstallation 24 4 Connection 25 4 1 Safety instructions 25 4 2 Connections 29 4 3 Connection examples 30 4 4 Connecting to the RS485 bus 35 5 Commissioning 37 5 1 Overview ...

Page 6: ...rameters 52 7 2 4 Integrated I Os 54 7 2 5 MODBUS RTU communication 56 7 2 6 Display 57 7 2 7 ENERGY COUNTER 58 7 2 8 Advanced 59 7 2 8 1 Password 59 7 2 8 2 Resetting 60 8 Security features 61 8 1 Password protection 61 9 Service and maintenance 63 9 1 Cleaning 63 9 2 Firmware update 63 9 3 Warranty 64 10 Technical data 65 10 1 Labeling 73 11 Dimensional drawings 77 A Appendix 79 A 1 Modbus 79 A ...

Page 7: ...A 1 7 Modbus settings with the function codes 0x03 0x04 and 0x10 84 A 1 8 Modbus communication parameters with the function codes 0x03 0x04 and 0x10 87 A 1 9 Modbus command parameters 88 A 1 10 MODBUS standard device identification with the function code 0x2B 88 Index 89 ...

Page 8: ...Table of contents PAC1020 6 Equipment Manual 05 2020 L1V30610008B 01 ...

Page 9: ...e SENTRON powerconfig software https support industry siemens com cs ww en view 63452759 Available accessories Compact bracket 7KM9900 0GA00 0AA0 Adapter for mounting on DIN rails display faces towards DIN rail 7KM9900 0YA00 0AA0 Adapter for mounting on DIN rails display faces forwards 7KM9900 0XA00 0AA0 1 2 Latest information Up to the minute information You can find further support on the Intern...

Page 10: ...plications described in the catalog and the associated technical documentation Note These operating instructions do not purport to cover all details or variations in equipment or to provide for every possible contingency in connection with installation operation or maintenance Should additional information be desired or should particular problems arise that are not discussed in enough detail in th...

Page 11: ...oduct solution or service Product contains third party software components These components are Open Source Software licensed under a license approved by the Open Source Initiative http www opensource org or similar licenses as determined by SIEMENS OSS and or commercial or freeware software components With respect to the OSS components the applicable OSS license conditions prevail over any other ...

Page 12: ...t for this Product or any OSS components contained in it if they are modified or used in any manner not specified by SIEMENS The license conditions may contain disclaimers that apply between you and the respective licensor For the avoidance of doubt SIEMENS does not make any warranty commitment on behalf of or binding upon any third party licensor The Open Source Software used in the product and t...

Page 13: ...can be used to measure current The power monitoring device has a large graphical LC display on which all measured variables are clearly visible The four function keys combined with the multi language plaintext displays make intuitive user guidance possible The experienced operator can also use direct navigation for quicker selection of the desired display menu The power monitoring device comes wit...

Page 14: ... memory Values can be reset via SENTRON powerconfig Modbus command or directly on the device via the menu Behavior in the case of power failure and power restore After a power failure the device starts back at zero with the calculation of total reactive power and total active power Security Password protection Password protection allows you to protect write access to the device settings The protec...

Page 15: ...sformers Each current measuring input can take a continuous load of 10 A Surge withstand capability is possible for currents up to 100 A and a duration of 1 s Voltage measurement NOTICE AC voltage measurement only The device is not suitable for measuring DC voltage The power monitoring device is designed for Direct measurement on the system or using voltage transformers The measuring voltage input...

Page 16: ...ioning You can find the instructions for parameterizing the connection type in chapter Commissioning Page 37 Displaying the measured variables depending on the connection type The table below shows which measured values can be represented depending on the connection type Table 2 2 Display of measured variables depending on the connection type Measured variable Connection type 3P4W 3P3W Voltage L1 ...

Page 17: ...export Net total reactive energy The measured values specified in the table are displayed as instantaneous minimum and maximum values 2 3 Energy counters The power monitoring device features two energy counters The counters can be programmed independently of each other The following options are available Active energy import Active energy export Net active energy Reactive energy import Reactive en...

Page 18: ...ve digital output 2 4 1 Digital input The integral digital input makes it possible to detect the status of the connected sensor External power supply Input electronics Figure 2 1 Block diagram Digital input Wiring An external voltage of up to max 30 V typically 24 V DC must be connected to terminal DIC External voltage Figure 2 2 Digital input with switch and external power supply at terminal DIC ...

Page 19: ...rface The Modbus function codes can be found in chapter Modbus Page 79 Energy pulse output programmable for active energy pulses or reactive energy pulses The digital output issues the parameterized number of pulses per energy unit e g kWh External power supply Input electronics Load Figure 2 3 Block diagram Digital output Wiring The digital output is passive and implemented exclusively as a switc...

Page 20: ...s to the programmed pulse length 30 ms is the absolute minimum 2 5 RS485 interface RS485 interface for Modbus RTU communication The PAC1020 is equipped with an RS485 interface for Modbus RTU communication The device operates as a Modbus slave Application This interface permits Reading out the measured values Reading and writing the device settings Use of the SENTRON powerconfig commissioning param...

Page 21: ...ic Delaying the response time The response time of the PAC1020 may have to be delayed to enable its operation as a slave device with devices from other manufacturers on the bus The PAC1020 can automatically calculate the response time to suit the baud rate This automatic calculation is set at the factory The delay time is individually adjustable between 1 ms and 255 ms Polarization Polarization of...

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Page 23: ...The doors of the control cabinet must be connected to the control cabinet using a grounding cable Note Mounting on DIN rails If the optionally available adapters for DIN rail mounting are used the power monitoring device can also be mounted on DIN rails Adapter for mounting on DIN rails display faces forwards 7KM9900 0XA00 0AA0 Adapter for mounting on DIN rails display faces towards DIN rail 7KM99...

Page 24: ... Ventilation Wiring Connection of the communication cable and cable infeed on the top of the device WARNING The use of a damaged device may result in death serious personal injury or property damage Do not install or commission damaged devices Note Avoid condensation Sudden fluctuations in temperature can lead to condensation Condensation can affect the proper functioning of the device Store the d...

Page 25: ...cables at the digital inputs outputs 3 1 1 Mounting dimensions Mounting and clearance dimensions You can find information on the cutout dimensions frame dimensions and clearances in chapter Dimensional drawings Page 77 3 1 2 Installation steps Installation steps Proceed as follows to install the power monitoring device in the panel Figure 3 2 Installation Note Plate thickness With plate thicknesse...

Page 26: ...on 3 2 Deinstallation PAC1020 24 Equipment Manual 05 2020 L1V30610008B 01 3 2 Deinstallation Make sure the device has been shut down before you begin to deinstall it Deinstallation steps Figure 3 3 Deinstallation ...

Page 27: ...f the current transformers under load Short circuit the secondary current terminals of the current transformer before removing this device It is imperative that you follow the safety instructions for the current transformers you are using CAUTION Protection of the supply voltage and voltage measuring inputs The miniature circuit breakers in the supply voltage and the voltage measuring inputs are o...

Page 28: ...e conductors so that they do not directly contact live terminals or bus NOTICE Incorrect line voltage may damage the device Before connecting the device make sure that the line voltage matches the specifications on the rating plate NOTICE Short circuit hazard Take the maximum possible ambient temperature into account when selecting the connecting cables The cables must be suitable for operation in...

Page 29: ...heck the polarity and the phase assignment of the instrument transformers Before connecting the device make sure that the line voltage matches the specifications on the rating plate Prior to commissioning the device check that all connections are correct Before power is applied to the device for the first time it must have been located in the operating area for at least two hours in order to reach...

Page 30: ...V 20 230 400 V 20 400 V 20 230 V 20 230 V 20 230 460 V 20 a The two voltage values that are separated by a forward slash stand for the phase to neutral or line to neutral volt age followed by the voltage between the phases or line to line For example 230 400 means that the voltage be tween any phase and the neutral conductor is 230 V and the voltage between any phase and another phase is 400 V Sim...

Page 31: ...ltage measuring input Ⓓ IL1 IL2 IL3 Current measuring inputs V1 Voltage measuring input Ⓔ RS485 communication inter face IL3 l Current measuring output DOC Digital output common IL3 k Current measuring input DO0 Digital output 0 IL2 l Current measuring output DIC Digital input common IL2 k Current measuring input DI0 Digital input 0 IL1 l Current measuring output N AC Connection Neutral conductor ...

Page 32: ...ples The connection examples below show connection in Three wire or four wire systems With without voltage transformer The device can be operated up to the maximum permissible voltage values with or without a voltage measuring transformer It is only possible to measure the current with current transformers ...

Page 33: ... against overvoltage when the secondary transformer circuit is open Figure 4 2 Connection type 3P4W without voltage transformer with 3 current transformers 2 3 phase measurement 4 conductors unbalanced load with voltage transformer with 3 current transformers Connection type 3P4W The fuses are only used for cable protection All commercially available miniature circuit breakers up to 20 A C can be ...

Page 34: ... overvoltage when the secondary transformer circuit is open Figure 4 4 Connection type 3P3W without voltage transformer with 3 current transformers 4 3 phase measurement 3 conductors unbalanced load with voltage transformer with 3 current transformers Connection type 3P3W The fuses are only used for cable protection All commercially available miniature circuit breakers up to 20 A C can be used Con...

Page 35: ...transformers Connection type 3P3W The fuses are only used for cable protection All commercially available miniature circuit breakers up to 20 A C can be used Connection of supply voltage Install a short circuit device Protection against overvoltage when the secondary transformer circuit is open Figure 4 6 Connection type 3P3W without voltage transformer with 2 current transformers ...

Page 36: ...e secondary transformer circuit is open Figure 4 7 Connection type 3P3W with voltage transformer with 2 current transformers 7 2 phase measurement 4 conductors unbalanced load without voltage transformer with 2 current transformers Connection type 3P4W The fuses are only used for cable protection All commercially available miniature circuit breakers up to 20 A C can be used Connection of supply vo...

Page 37: ...ntion here to the general topology of the two wire line 1 Connect all three lines to the screw terminals 2 Ensure a bus terminating resistance is set at the first and last communication node Block diagram TER Bus termination resistor termination PU Pull up resistor PD Pull down resistor Grounding of the cable shield Grounding of the common line preferably only at one point for the whole bus Figure...

Page 38: ...ot support polarization of the RS485 data lines Polarization must be implemented at another point on the bus The master device usually performs the polarization We recommend polarization with supply of 5 V DC pull up resistor with 560 Ω pull down resistor with 560 Ω Bus terminator The first and last node in the bus segment must terminate the bus with a terminating resistor The PAC1020 does not sup...

Page 39: ...he device 1 Connect the supply voltage 2 Parameterize the device 3 Connect the measuring voltage 4 Check the displayed measured values for plausibility 5 Check the polarity and the phase assignment of the instrument transformers NOTICE Device can be irreparably damaged When performing an insulation test of the entire installation with AC or DC the device should be disconnected before starting the ...

Page 40: ...e technical data and on the rating plate must not be exceeded even during startup or testing of the device 5 3 Parameterizing the device For commissioning the device you must specify the operating parameters listed below in the device settings Basic parameters The following settings are also useful Language Device protection against manipulation First commissioning The language selection only appe...

Page 41: ...ormers 100 A 5 A 1 Select the BASIC PARAMETERS submenu of the SETTINGS menu Specify the connection type and the ratio of the voltage transformers you are using in the VOLTAGE INPUTS menu item The ratio of the voltage transformer you are using can be only be adjusted when the setting USE PTs is activated 2 Confirm your entry and press the F1 key to return to the BASIC PARAMETERS submenu Specify the...

Page 42: ...lable in the device is activated For further information please refer to chapter Security features Page 61 Please also note the information in chapters Operation Page 43 and Parameterizing Page 49 5 4 Applying the measuring voltage The power monitoring device is designed for the following measuring voltages Rated voltage 57 7 V 100 V 230 V 400 V 20 NOTICE Observe the limit values The limits given ...

Page 43: ...ransformer before removing this device Follow the safety instructions for the applied current transformers NOTICE Alternating current measurement only Use the device to measure alternating current only Direction of current flow Please take account of the direction of current flow when connecting the current measuring inputs With inverse connection the measured values are inverted and receive a neg...

Page 44: ...Commissioning 5 6 Checking the displayed measured values PAC1020 42 Equipment Manual 05 2020 L1V30610008B 01 ...

Page 45: ...function keys Surfaces of the function keys The keys have multiple assignments Function assignments and key labeling change according to the context of operator input The designation of the current key function can be seen above the key number in the footer area of the display A short press on the key triggers the function once Holding the key down for longer switches on the autorepeat function af...

Page 46: ... key F1 Arrow up Maximum value Arrow down Minimum value Menu name Menu number Scroll bar display can be scrolled upwards downwards Device protection symbol Open padlock Protection deactivated Closed padlock Protection activated Activation deactivation symbol Symbol with check mark function activated Symbol without check mark function deactivated Figure 6 2 Special display elements ...

Page 47: ... and firmware status the availability of the measured values may vary in the measured value and main menu levels The parameter selection options at the setting and editing levels also depend on the device version and firmware status 6 1 3 1 Measured value level By default the device is at the measured value level At the measured value level the available measured values can be read off The display...

Page 48: ...etting level by actuating the key 6 1 3 3 Setting level At the setting level the device can be configured At this menu level all settable parameters are listed The key returns the device to the main menu level The and keys can be used to scroll through the settable parameters The key confirms the selection made and takes the device to the editing level 6 1 3 4 Editing level At the editing level it...

Page 49: ...y moves the selection bar upwards Editing level Displays the next selectable setting or increases the numerical value by 1 Measured value level This key calls the next measured variable to the display Main menu and setting levels This key moves the selection bar downwards Editing level Displays the next selectable setting Editing level Selects the next number from the right for editing Measured va...

Page 50: ...Operation 6 1 Device interface PAC1020 48 Equipment Manual 05 2020 L1V30610008B 01 ...

Page 51: ...the communication system Country specific settings ergonomics device protection It is possible to set the device by means of The operator interface of the device powerconfig configuration software RS485 interface Modbus Note Protection of the device settings In the as delivered state the device settings can be changed We recommend that you activate password protection on commissioning to safeguard...

Page 52: ... 45 The device settings are arranged into the following groups The SETTINGS menu shows the choice of groups DEVICE INFO Article number and versions LANGUAGE Language of the display BASIC PARAMETERS Settings for the measuring inputs INTEGRATED I O Settings for using the status display of the digital inputs and outputs COMMUNICATION Settings for network communication DISPLAY Settings for the display...

Page 53: ...DA0 Article number of the device PAC1020 Vx x x Device designation and firmware version D T xxxxxx Date code ES xxx Hardware revision level FW xxxx Firmware revision level BL xxxx Boot loader revision level 7 2 2 Language The language of the menu based operation and the measured value displays can be set in the LANGUAGE menu item Selection Range Factory setting Language English Portuguese Spanish ...

Page 54: ...he voltage transformation ratio For this purpose the primary and sec ondary voltages must be specified in the fields PT PRIMARY and PT SECONDARY When changing from direct measurement to measurement using voltage transformers the device accepts the last set reference measur ing voltage as the secondary voltage and as the primary voltage OFF Measurement directly on the low voltage sys tem When chang...

Page 55: ...rs 1 A 5 A 5 A DISPLAY RANGE Display range setting Freely adjustable 1 99999 A 50 A CURRENT DIREC L1 CURRENT DIREC L2 CURRENT DIREC L3 Inverse evaluation of the current flow direction separately for each phase ON Direction of current flow is inverted The device interprets the current flow direc tion as opposite to the wiring OFF The device interprets the current flow direction to match the wiring ...

Page 56: ...d num ber of pulses or edges per energy unit OFF PULSES Number of pulses to be issued per unit The refer ence unit is defined in the UNIT field 1 4000 1 UNIT with PULSE only Selects the type of cumulated power active ener gy or reactive energy kWh IMPORT kWh EXPORT kvarh IMPORT kvarh EXPORT The import values at which a pulse is output are defined in the fields UNIT and PER pulses per unit Value of...

Page 57: ... config urable number of pulses is output The number of pulses to be output is defined in the field PER 1 10 100 1000 1 PULSE LENGTH with PULSE only Length of the pulse 30 500 ms The minimum length of the pulse pause corre sponds to the pulse duration specified 100 ms Status Selection Range Factory setting DI 0 0 DO 0 0 Graphically represents the status of the integrated I Os on the device display...

Page 58: ...RTU communication Selection Range Factory setting ADDRESS Range 1 247 126 BAUD RATE Range 4800 9600 19200 38400 57600 115200 19200 FORMAT 8N1 8 data bits no parity 1 stop bit 8N2 8 data bits no parity 2 stop bits 8E1 8 data bits even parity 1 stop bit 8O1 8 data bits odd parity 1 stop bit 8N2 RESPONSE TIME Range 0 255 ms 0 ms ...

Page 59: ...ting OFF ON DIMMED AFTER Time after which the device switches off the back lighting 0 99 min 3 min DEFAULT MENU Menu display number for the default menu The device always starts up with the menu display defined here 1 xx 1 TIMEOUT When the specified time has elapsed the device automatically returns to the defined default menu 0 3600 s 0 function deactivated 0 DISPLAY TEST Screen for testing the fu...

Page 60: ...EXPORT The active energy counter displays the export value NET The active energy counter displays the net value The net value is calculated as import value minus export value NET REACTIVE ENERGY Selecting the energy counter displayed on the measured value level IMPORT The reactive energy counter displays the im port value EXPORT The reactive energy counter displays the ex port value NET The reacti...

Page 61: ...on is active Note Depending on how the password protection function is configured the password prevents write access via Device interface Communication interface Device interface and communication interface Selection Range Factory setting DISPLAY Password protection prevents write access via the device interface ON Password protection active OFF Password protection deactivated OFF COMMUNICATION Pa...

Page 62: ...ot active No not active FACTORY DEFAULTS All device settings and measured values except the communication parameters and energy sec ondary values are reset to the as delivered state Yes active No not active No COMMUNICATION PARAMETERS All communication settings are reset to the as delivered state Yes active No not active No EXECUTE Confirmation of the reset Note The reset must be confirmed by sele...

Page 63: ...rd protection Password protection prevents write access via the device menu and the communication interfaces in particular Changing of device settings including password Changing and deletion of values parameters Deletion of data and memory content Setting and resetting of counts Resetting to factory settings Reading out of measured values and memory content is still possible when password protect...

Page 64: ...lay when password protection is switched off The password remains saved and becomes effective again the next time password protection is switched on Note Before you switch on password protection make sure that you and the group of authorized users are all in possession of the password If password protection is switched on the password is mandatory for all changes to the device settings You also re...

Page 65: ...ation software to update the firmware Additional information on updating the firmware can be found in the online help for powerconfig You can protect the update function like all write accesses with a password NOTICE Power failure during a firmware update renders the device unable to function The firmware update takes several minutes Connect the device to a fail safe power supply before updating t...

Page 66: ...s to the device If the device is defective or damaged proceed as follows only during the warranty period 1 Deinstall the device You can find more information in chapter Deinstallation Page 24 2 Pack the device in a suitable manner to prevent it from being damaged during transport 3 Return the device to Siemens You can obtain the address from Your Siemens sales partner Technical Assistance https ww...

Page 67: ...sition Power Frequency Power factor Zero blind measurement gapless Waveform Sinusoidal or distorted Frequency of the relative fundamental 50 60 Hz Measured value acquisition mode Automatic line frequency detection Measuring inputs for voltage Measuring inputs for voltage Measurable voltage Rated voltage 57 7 V 100 V 230 V 400 V Min measuring voltage UL N 11 5 V Max measuring voltage UL L 280 V Zer...

Page 68: ...t 5 A Zero point suppression level 0 10 of rated current Measuring accuracy Measuring accuracy Measured variable Accuracy class Voltage 0 5 Current 0 5 Neutral conductor current calculated 1 Active power 1 Reactive power 2 Total active power over all phases 1 Total reactive power Q1 over all phases 2 Cumulated active power 1 Cumulated reactive power 2 Total power factor 0 5 Line frequency 0 05 Act...

Page 69: ...tput Rated voltage 0 30 V DC typical 24 V DC SELV or PELV supply Output current For 1 signal Depends on the load and the external power supply Continuous load 50 mA thermal overload protection Transient overload 130 mA for 100 ms For 0 signal 0 2 mA Internal resistance 55 Ω Pulse output function Standard for pulse emitter Signal characteristics in accordance with IEC 62053 31 Adjustable pulse dura...

Page 70: ...ts no parity 2 stop bits 8E1 8 data bits even parity 1 stop bit 8O1 8 data bits odd parity 1 stop bit Default 8N2 Supported address area 1 247 Default 126 Display and operator control Display and operator control Display Version Monochrome graphical LC display Backlighting White Service life of the LEDs 50 000 hours at 25 C ambient temper ature To increase the life of the backlighting it is advisa...

Page 71: ...e 0 25 6 mm2 AWG 24 10 Flexible with end sleeve without plastic sleeve 0 25 4 mm2 AWG 24 12 Flexible with end sleeve and plastic sleeve 0 25 4 mm2 AWG 24 12 2 conductors with the same cross section only for voltage connections Rigid 0 25 1 5 mm2 AWG 24 16 Flexible 0 25 1 5 mm2 AWG 24 16 Flexible with end sleeve without plastic sleeve 0 25 2 5 mm2 AWG 24 14 Flexible with TWIN end sleeve and plas ti...

Page 72: ...ors with the same cross section Rigid 2x 0 34 0 5 mm2 AWG 22 20 Flexible 2x 0 34 0 5 mm2 AWG 22 20 Flexible with end sleeve without plastic sleeve 1x 0 34 0 5 mm AWG 22 18 Flexible with TWIN end sleeve and plas tic sleeve 1x 0 34 1 0 mm AWG 22 20 Tightening torque 0 3 Nm 2 6 lb in Dimensions and weights Dimensions and weights Type of mounting Panel mounting to IEC 61554 Enclosure dimensions W x H ...

Page 73: ...nel IP40 Device rear panel IP20 If a higher degree of protection is required for a specific application the customer must take suitable measures Ambient conditions The device is suitable for switch panel mounting in accordance with IEC 61554 The device may only be operated within enclosed dry rooms Ambient conditions Temperature range Ambient temperature during operation 10 55 C K55 Ambient temper...

Page 74: ...itted interference EN 61323 1 Class A EN 61000 3 2 EN 61000 3 3 Interference immunity EN 61326 1 Table 2 For use in an industrial electromagnetic environment EN 61000 6 2 Approvals Symbol Approval CE conformity The applied directives and standards can be found in the EU Declaration of Con formity Approvals for Eurasian Customs Union valid in Russia Belarus Kazakhstan Kyrgyzstan and Armenia You can...

Page 75: ...m Symbol label Explanation Article number Serial number of the device Device supply voltage Data about measuring inputs for voltage Protective insulation class II device General warning symbol Risk of electric shock The device must not be disposed of with general domestic waste Electrical installation and maintenance by qualified personnel only ...

Page 76: ...g PAC1020 74 Equipment Manual 05 2020 L1V30610008B 01 Item Symbol label Explanation 2D code serial number of the device CE CE marking European Union EAC EAC marking Eurasian Economic Union Data about measuring inputs for current ...

Page 77: ...Technical data 10 1 Labeling PAC1020 Equipment Manual 05 2020 L1V30610008B 01 75 ...

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Page 79: ...PAC1020 Equipment Manual 05 2020 L1V30610008B 01 77 Dimensional drawings 11 Panel cutout Figure 11 1 Panel cutout Frame dimensions Figure 11 2 Frame dimensions ...

Page 80: ...ensional drawings PAC1020 78 Equipment Manual 05 2020 L1V30610008B 01 Clearance measurements L 5 mm if compact brackets available to order as separate components are used article num ber 7KM9900 0GA00 0AA0 ...

Page 81: ...ave which action it is to take If an error occurs the MSB bit is set in the response frame in the FC byte Supported Modbus function codes Table A 1 Supported Modbus function codes FC Function in accordance with Modbus specification 0x01 Read Coils 0x02 Read Discrete Inputs 0x03 Read Holding Registers 0x04 Read Input Registers 0x05 Write Single Coil 0x06 Write Single Register 0x0F Write Multiple Co...

Page 82: ... re maining structure of a complex request e g an incorrect data length Check that the specified offset and the specified data length in the com mand are correct 04 Slave Device Fail ure Error in processing the data An indefinite error occurred when the slave attempt ed to execute the requested action Check that the specified offset and the specified data length in the com mand are correct A 1 3 M...

Page 83: ...at W R 21 2 active power L2 float W R 23 2 active power L3 float W R 25 2 reactive power L1 Q1 float var R 27 2 reactive power L2 Q1 float var R 29 2 reactive power L3 Q1 float var R 31 2 power factor L1 float 0 1 R 33 2 power factor L2 float 0 1 R 35 2 power factor L3 float 0 1 R 37 2 neutral current float A R 39 2 frequency float Hz 45 65 R 41 2 collective active power float W R 43 2 collective ...

Page 84: ...rent L2 float A R 109 2 min current L3 float A R 111 2 min active power L1 float W R 113 2 min active power L2 float W R 115 2 min active power L3 float W R 117 2 min reactive power L1 Q1 float var R 119 2 min reactive power L2 Q1 float var R 121 2 min reactive power L3 Q1 float var R 123 2 min power factor L1 float 0 1 R 125 2 min power factor L2 float 0 1 R 127 2 min power factor L3 float 0 1 R ...

Page 85: ...tus 32 bits DO 0 0 3 0 0x00000001 R Digital inputs status 32 bits DI 0 0 3 0 0x00000001 R A 1 5 Structure Device diagnostics and device status with the function codes 0x03 and 0x04 Table A 6 Modbus offset 205 register 2 Structure device status and device diagnostics Byte Bit Device status Type Bit mask Value range Access 0 1 local configuration menu is active status 0x02000000 0 1 0 not active 1 a...

Page 86: ... R 126 1 Bit 2 voltage overload Bit R 127 1 Bit 3 current overload Bit R 200 1 Binary input 0 0 Bit R 300 1 Binary output 0 0 Bit R A 1 7 Modbus settings with the function codes 0x03 0x04 and 0x10 Addressing the settings You can use the Modbus function codes 0x03 and 0x04 for read access operations and 0x10 for write access operations on all the setting parameters listed below Table A 8 Setting pa...

Page 87: ...WORD CODED 0 import 1 export 2 net HIWORD kVARh setting LOWORD kWh setting RW 50035 2 Digital output 0 0 ac tion unsigned long 0 2 0 no action 1 switching output 2 pulse output RW 50037 2 Output 0 0 pulse type index unsigned long 0 3 0 import kWh 1 export kWh 2 import kvarh 3 export kvarh RW 50039 2 Output 0 0 pulse ratio pulses per kWh kvarh unsigned long 1 4000 RW 50041 2 Output 0 0 pulse length...

Page 88: ...Off 1 On RW 50063 2 Display illumination level dimmed mode unsigned long 0 1 RW 50065 2 Display illumination dimm time unsigned long min 0 99 RW 50067 2 I N Display unsigned long 0 1 0 Hide I N 1 Display calculat ed I N depends on hookup RW 50069 2 Default menu No unsigned long DISPLAYED MENU NUMBER 1 12 only existing men us are accepted 1 MEAS_VLN 2 MEAS_VLL 3 MEAS_I 5 MEAS_P 6 MEAS_Q 7 MEAS_SPQ ...

Page 89: ...ong 1 247 RW 63021 2 ModbusRTU baud rate unsigned long 0 5 0 4800 baud 1 9600 baud 2 19200 baud 3 38400 baud 4 57600 baud 5 115200 baud RW 63023 2 ModbusRTU data bits parity stop bits unsigned long 0 3 0 8N2 1 8E1 2 8O1 3 8N1 RW 63025 2 ModbusRTU response time unsigned long ms 0 255 RW Addressing the settings for the I M data Table A 10 Addressing the settings for the I M data Offset Number of reg...

Page 90: ... 1 active energy 2 active energy W 60007 1 acknowledge diagnostics unsigned short 0 ffffh W 60008 1 switch outputs if parameterized unsigned short 0ffh 1ffh Byte0 0 Output0 Byte1 0 Output0 off Byte1 1 Output0 on W A 1 10 MODBUS standard device identification with the function code 0x2B Addressing the Modbus standard device identification You can use Modbus function code 0x2B on these device identi...

Page 91: ... Digital output 17 Dimensions 77 Clearance measurements 78 Frame dimensions 77 Panel cutout 77 Direction of current flow 41 Display Measured variables depending on the connection type 14 E Energy counters 15 Error code 80 Exception code 80 F Frame dimensions 77 Function code 79 88 G General safety notes 8 I Installation Procedure 23 Installation space Ventilation 21 Installation tools 23 M Measure...

Page 92: ...interface 18 35 68 S Scope of supply 7 Screw terminal 69 Security functions 9 Status parameters 84 T Technical data 65 Ambient conditions 71 Communication 68 Connection components 69 Current measuring inputs 66 Degree of protection 71 Digital input 67 Digital inputs outputs 70 Digital output 67 Display 68 68 Measuring accuracy 66 Measuring inputs 65 66 Protection class 71 RS485 interface 68 70 Scr...

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