Datakom DPR-400 User Manual

Datakom DPR-400 User Manual

Protection relay
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DPR-400 User Manual Rev_01
DESCRIPTION
DPR-400 is a state of the art, color screen,
directional network analyzer and protection relay in
144x144mm standard panel dimensions. Thanks to
its low depth, it saves space in the panel. The device
combines high precision, ease of use and versatility
with a reliable and cost-effective design.
The DPR-400 features dual current measurement
circuits, making it a class 0.5% accuracy analyzer,
and a protection relay capable of measuring 50xIn.
The DPR-400 offers various protection curves to
provide precise protection. Multiple protection curves
can be activated simultaneously.
The DPR-400 displays multiple measurements on its
4.3" screen. The large display offers ease of use and
provides abundant information.
The device can connect to various Scada systems
easily via USB, isolated RS-485 and Ethernet ports
for remote monitoring.
Modbus and IEC60870-5-103 protocols are
supported through RS-485 port.
Modbus TCP/IP and IEC61850 protocols are
supported over the Ethernet port.
Parameter configuration is done using the buttons on
the front panel or with the free PC software. The
program connects via USB, RS-485 or optionally
over the Internet. Additionally, firmware updates are
performed through the USB port.
Two of the relay outputs of the device have
connection monitoring capability. These outputs
continually check the integrity of the load circuit, and
raise an alarm if the circuit opens.
DPR-400 stores up to 7 oscillographic records in
COMTRADE format in its 1MB internal memory.
The device meets the security, EMC, vibration, and
environmental standards for industrial products.
Firmware V-1.0
DPR-400
PROTECTION RELAY
FEATURES
4.3" color graphic display, 480x272 pixels
Accurate power analyzer (%0.5)
4 quadrant energy counters
Multiple protection curves
Self-test, internal failure monitoring
Cold reclosure
Configurable digital outputs
Configurable relay outputs
3 independent adjustment sets
Multiple languages
All parameters front panel adjustable
3 level password protection
Free PC program for setup
Setup through USB, RS-485, and Ethernet
14 x configurable front panel leds
Manual & Scada driven closing and opening
Firmware upgrade through USB
IP65 protection (with optional gasket)
Low panel depth, only 55mm
Trip counter, service warning
PROTECTION CURVES
• IEC Normal, Very, Extreme Inverse
• UK Long Term Inverse,
• IEEE Medium, Very, Extreme Inverse
• US Normal Inverse, Short Time Inverse
PROTECTION FUNCTIONS
ANSI CODE DESCRIPTION
27
Under Voltage (Ph-Ph / Ph-N)
46
Negative Sequence Overcurrent
46BC
Broken Conductor
47
Negative Sequence Over Voltage
49RMS
Thermal Overload
50,51
Overcurrent
50N/51N
Ground Overcurrent
50BF
Breaker Failure
59
Over Voltage (Ph-Ph / Ph-N)
67
Directional Overcurrent
74CT
CT Supervision
79
Reclosure
81O
High Frequency
81U
Under Frequency
CLP
Cold Load Pickup

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Summary of Contents for Datakom DPR-400

  • Page 1 DPR-400 PROTECTION RELAY FEATURES DESCRIPTION • 4.3” color graphic display, 480x272 pixels DPR-400 is a state of the art, color screen, • Accurate power analyzer (%0.5) directional network analyzer and protection relay in • 4 quadrant energy counters 144x144mm standard panel dimensions. Thanks to •...
  • Page 2 DPR-400 family units. Follow the advice given in the document carefully. These are often good practices for the installation of the units which reduce future issues. For all technical queries please contact Datakom at the e-mail address below: technical.support@datakom.com.tr QUERRIES...
  • Page 3 DPR-400 User Manual Rev_01 Firmware V-1.0 REVISION HISTORY REVISION DATE AUTHOR DESCRIPTION 06.06.2020 First Edition TERMINOLOGY CAUTION: Potential risk of injury or death. WARNING: Potential risk of malfunction or material damage. ATTENTION: Useful hints for the understanding of device operation.
  • Page 4 DPR-400 User Manual Rev_01 Firmware V-1.0 ORDERING CODES The DPR-400 family units are available in various options and peripheral features. Please use below information for ordering the correct version. DPR-400 -G -T -00 Variant 00: Standard Unit 01...99: customer With Conformal...
  • Page 5 DPR-400 User Manual Rev_01 Firmware V-1.0 SAFETY NOTICE Failure to follow below instructions will result in death or serious injury. ▪ Electrical equipment should only be installed by a qualified specialist. No responsibility is assured by the manufacturer or any of its subsidiaries for any consequences resulting from the non-compliance to these instructions.
  • Page 6: Table Of Contents

    DPR-400 User Manual Rev_01 Firmware V-1.0 TABLE OF CONTENTS 1. INSTALLATION INSTRUCTIONS 2. MOUNTING 2.1 DIMENSIONS 2.2 SEALING GASKET 2.3 ELECTRICAL INSTALLATION 3. TERMINAL TECHNICAL SPECIFICATIONS 3.1. BATTERY VOLTAGE INPUT 3.2. AC VOLTAGE INPUTS 3.3. AC CURRENT INPUTS 3.4. DIGITAL INPUTS 3.5.
  • Page 7 DPR-400 User Manual Rev_01 Firmware V-1.0 9.11. AUTOMATIC RECLOSURE (ANSI 79) 9.12. COLD LOAD PICKUP (CLP 50/51) 9.13. THERMAL OVERLOAD (ANSI 49RMS) 9.14. UNDER VOLTAGE PROTECTION (ANSI 27) 9.15. HIGH VOLTAGE PROTECTION (ANSI 59) 9.16. UNDER FREQUENCY PROTECTION (ANSI 81U) 9.17.
  • Page 8 DPR-400 User Manual Rev_01 Firmware V-1.0 12.26. PASSWORD CHANGE 12.27. RETURN TO FACTORY PRESET 12.28. SAFE EXIT 13. OSCILLOGRAPHIC (COMTRADE) RECORD SETTINGS 14. MODBUS COMMUNICATIONS 14.1. REQUIRED PARAMETERS FOR RS-485 MODBUS COMMUNICATION 14.2. ETHERNET MODBUS TCP/IP PARAMETERS 14.3. DATA FORMATS 14.4.
  • Page 9: Installation Instructions

    DPR-400 User Manual Rev_01 Firmware V-1.0 1. INSTALLATION INSTRUCTIONS Before installation: ▪ Read the user manual carefully, determine the correct connection diagram. ▪ Remove all connectors and mounting brackets from the unit, then pass the unit through the mounting opening.
  • Page 10: Mounting

    DPR-400 User Manual Rev_01 Firmware V-1.0 2. MOUNTING 2.1. DIMENSIONS Dimensions: 164x164x69mm (6.5”x6.5”x2.7”) Panel Cutout: 140x140mm minimum (5.52”x5.52”) Weight: - 630gr (approx.) - 10 -...
  • Page 11 DPR-400 User Manual Rev_01 Firmware V-1.0 Mount the unit on a flat, vertical surface. Before mounting, remove the mounting brackets and connectors from the unit, then pass the unit through the mounting opening. Place and tighten mounting brackets. Panel Cutout Required Panel Depth The unit is designed for panel mounting.
  • Page 12 DPR-400 User Manual Rev_01 Firmware V-1.0 Two different types of brackets are provided: Self-retaining type bracket Screw type bracket Installation of self-retaining type bracket Installation of screw type bracket Do not tighten too much, this may break the unit. - 12 -...
  • Page 13: Sealing Gasket

    DPR-400 User Manual Rev_01 Firmware V-1.0 2.2. SEALING GASKET Panel Gasket Module The rubber gasket (sold separately) provides a watertight means of mounting the module to the panel. With the gasket, IEC 60529-IP65 protection is provided. A short definition of IP protection levels is given...
  • Page 14: Electrical Installation

    DPR-400 User Manual Rev_01 Firmware V-1.0 2.3. ELECTRICAL INSTALLATION Do not install the unit close to high electromagnetic noise emitting devices like contactors, high current busbars, switch mode power supplies, etc. Although the unit is protected against electromagnetic disturbance, excessive disturbance can affect the operation, measurement precision and data communication quality.
  • Page 15: Terminal Technical Specifications

    DPR-400 User Manual Rev_01 Firmware V-1.0 3. TERMINAL TECHNICAL SPECIFICATIONS 3.1. BATTERY VOLTAGE INPUT Power Supply Voltage: 19 - 150VDC Reverse Voltage: Protected Maximum Input Current: 200mA @ 24VDC. (All options included, relays engaged.) 50mA @ 110VDC. (All options included, relays engaged.) Typical operating current: 150mA @ 24VDC.
  • Page 16: Ac Current Inputs

    DPR-400 User Manual Rev_01 Firmware V-1.0 3.3. AC CURRENT INPUTS Structure: Isolated, integrated current transformers Measurement Method: True RMS Sampling Rate: 8192 Hz CT Secondary Rating: 1 or 5A CT Range: 5/5 - 30000/5A minimum Measurement Range: Measurement inputs: 0.01 - 6A AC Protection inputs: 0.1 –...
  • Page 17 DPR-400 User Manual Rev_01 Firmware V-1.0 CORRECT CT CONNECTIONS Suppose that each phase of the utility mains are loaded with 100 kW. The power factor (PF) for the load is as follows: kVAr Phase L1 100.0 1.00 Phase L2 100.0 1.00...
  • Page 18: Digital Inputs

    DPR-400 User Manual Rev_01 Firmware V-1.0 EFFECT OF PHASE SWAPPING The utility mains is still loaded with 100 kW on each phase. PF in phases L2 and L3 will show -0.50 due to phase shift between voltages and currents which is caused by CT swapping. As a result, the total power displayed will be 0 kW.
  • Page 19 Isolation: 500VAC, 1 minute Supported protocols: IEC60870-5-103, Modbus RTU The Modbus register list is available at Datakom technical support. The RS-485 port provides an effective solution for distant PC connection to enable programming and monitoring via SCADA software. RS-485 LINE STRUCTURE Up to 32 controllers can be connected in parallel in a single RS-485 line.
  • Page 20: Usb Port

    The USB port is designed to provide PC connection with the controller. Programming and monitoring can be done via RainbowPlus program. The RainbowPlus program is available for free on www.datakom.com.tr. The connector type is Mini-USB. The cable type is the commonly available camera cable.
  • Page 21: Ethernet Port (Optional)

    DPR-400 User Manual Rev_01 Firmware V-1.0 3.8. ETHERNET PORT (OPTIONAL) IEEE802.3 compliant, RS-232 10/100 Base-TX RJ45 Description: connector ethernet port with indicating LEDs Data transfer 10/100 Mbit/s, auto Ethernet rate: detecting connector Connector: RJ45 Cable type: CAT5 or CAT6 Isolation: 1500 VAC, 1 minute Max.
  • Page 22: Connection Diagram

    DPR-400 User Manual Rev_01 Firmware V-1.0 4. CONNECTION DIAGRAM - 22 -...
  • Page 23: Terminal Descriptions

    DPR-400 User Manual Rev_01 Firmware V-1.0 5. TERMINAL DESCRIPTIONS Terminal Function Technical Data Description I1_K I1_L I2_K Connect the Current Transformer to these terminals. Be sure to connect CTs to the correct inputs I2_L Current Transformer in the correct polarity.
  • Page 24 DPR-400 User Manual Rev_01 Firmware V-1.0 Terminal Function Technical Data Description DIGITAL INPUT 1 Digital inputs are Digital input function can be configured optically isolated via the input/output matrix. Factory preset is “Relay-1”. RL-1 follows this from other terminals. input.
  • Page 25: Technical Specifications

    DPR-400 User Manual Rev_01 Firmware V-1.0 6. TECHNICAL SPECIFICATIONS Power Supply Input: 19 – 150VDC Power Consumption: < 10 VA Nominal Frequency: 50/60 Hz Phase Current Transformer Secondary: 1A/5A Ground Current Secondary: 1A/5A Protection Inputs: 0.1 – 250.0 A AC...
  • Page 26: Description Of Controls

    DPR-400 User Manual Rev_01 Firmware V-1.0 7. DESCRIPTION OF CONTROLS 7.1. FRONT PANEL FUNCTIONALITY Programmable LED indicators Next display Next screen within group the same group Previous screen group USB port for Manual Manual programming and control ON control OFF...
  • Page 27: Pushbutton Functions

    DPR-400 User Manual Rev_01 Firmware V-1.0 7.2. PUSHBUTTON FUNCTIONS BUTTON FUNCTION Hold pressed for 1 second: MANUAL Manual control mode is activated. If manual control is password protected, the password must be entered first Move to previous display group. Move to next display group. Removes alarms if an alarm is displayed on screen.
  • Page 28: Measured Parameters

    DPR-400 User Manual Rev_01 Firmware V-1.0 7.3. MEASURED PARAMETERS The controller measures multiple analog parameters with high accuracy. List of measured parameters is given below: L1-N voltage Ground current (coarse measurement, using L2-N voltage protection circuit) L3-N voltage Ground current...
  • Page 29: Automatic Display Scroll

    DPR-400 User Manual Rev_01 Firmware V-1.0 8.1. AUTOMATIC DISPLAY SCROLL The controller measures many electrical parameters. The viewing of these parameters are organized into DISPLAY GROUPS and their sub categories. Moving between different display groups is done by buttons. Each time is pressed, the next parameter group screen is displayed.
  • Page 30: Protection Functions

    DPR-400 User Manual Rev_01 Firmware V-1.0 9. PROTECTION FUNCTIONS 9.1. GENERAL FEATURES DPR-400 offers overcurrent protection relay functionality in order to protect and manage transmission lines. Supported ANSI protection functions are listed below: Overcurrent protection (ANSI 50/51) Cold Load Pickup (CLP 50/51)
  • Page 31: Time Calculation For Curves

    DPR-400 User Manual Rev_01 Firmware V-1.0 9.2. TIME CALCULATION FOR CURVES The DPR-400 controller offers constant time and 12 different variable time curves for protection functions. Current / time curves are usually calculated using the equation below: �� �� ( �� ) = �� ∗ [ + ��] + ��...
  • Page 32: Overcurrent Protection (Ansi 50/51)

    DPR-400 User Manual Rev_01 Firmware V-1.0 The DPR-400 offers the following parameters to configure protection functions: PARAMETER DESCRIPTION VALID CURVES Status Protection is activated or deactivated. Function Protection curve Direct. Direction setting for directional protection Set Val (Is) Fault threshold for current...
  • Page 33: Directional Overcurrent Protection (Ansi 67)

    DPR-400 User Manual Rev_01 Firmware V-1.0 There are 4 levels of configuration parameters for negative component overcurrent. This allows for configuring different trip timers for different input currents. For example, level 1 (I2>) protection may be programmed for negative component overcurrent, while level 2 (I2>>) can be used for short circuit protection with sudden trip (constant time (DT) and trip timer set to 0).
  • Page 34: Negative Sequence Over Voltage Protection (Ansi 47)

    DPR-400 User Manual Rev_01 Firmware V-1.0 9.9. NEGATIVE SEQUENCE OVER VOLTAGE (ANSI 47) This function operates on the negative components of the 3 phase voltage vectors has only one threshold and uses the constant time trip characteristic curve. 9.10. BREAKER FAILURE (ANSI 50BF) If the breaker fails to open at the end of the configured timer when the open command was sent, this means that the breaker has failed to perform its function, and is malfunctioning.
  • Page 35: Cold Load Pickup (Clp 50/51)

    DPR-400 User Manual Rev_01 Firmware V-1.0 9.12. COLD LOAD PICKUP (CLP 50/51) Cold load pickup operation is used to prevent unwanted conditions while energizing after long duration power losses. Temporary pulse currents which exceed protection threshold values may be formed when restoring power, depending on the characteristics of the network’s load.
  • Page 36: Under Frequency Protection (Ansi 81U)

    DPR-400 User Manual Rev_01 Firmware V-1.0 9.16. UNDER FREQUENCY PROTECTION (ANSI 81U) The controller offers 2 levels of under frequency protection. Frequency protections can be disabled if the breaker is open or the voltage and current of one phase are simultaneously equal to zero. Protections can be configured as constant timer or variable timer.
  • Page 37: Mimic Diagram

    DPR-400 User Manual Rev_01 Firmware V-1.0 10. MIMIC DIAGRAM The controller offers a mimic diagram screen which displays the breaker position. This screen is the factory default upon the device being powered on. In addition, the device shows this screen if no keys have been pressed for 1 minute.
  • Page 38: Programming

    DPR-400 User Manual Rev_01 Firmware V-1.0 11. PROGRAMMING Programming mode is used to configure timers, operation limits and parameters. While every program parameter can be changed from the front panel of the controller, they can also be changed using the free “RainbowPlus” PC software.
  • Page 39: Navigating Between Menus

    DPR-400 User Manual Rev_01 Firmware V-1.0 11.2. NAVIGATING BETWEEN MENUS The programming mode is organized into a 2-level menu system. Main menu is composed of program groups. Program parameters are located within the groups. Upon entering the programming mode, the list of program groups are displayed. Navigation between groups is done using buttons.
  • Page 40: Exiting Program Mode

    DPR-400 User Manual Rev_01 Firmware V-1.0 11.4. EXITING PROGRAM MODE In order to exit program mode, press and hold button for 5 seconds. The controller exits the program mode automatically if there is no action after 2 minutes. Press and hold for 5 seconds 12.
  • Page 41 DPR-400 User Manual Rev_01 Firmware V-1.0 Parameter Definition Unit Factory Description Setting 0: ETHERNET port off Ethernet Active 1: ETHERNET port on Fine Clock Adjustment Configures the periodic event record Periodic Record Timer 70000 timer. 0: continuous Intermittent Relay Active...
  • Page 42: Transformer Configuration

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.3. TRANSFORMER CONFIGURATION Parameter Definition Unit Factory Description Setting Voltage transformer primary value. Voltage (VT) Primary 655350 Must be set to 100V if not used. Voltage transformer secondary value. Voltage (VT) Secondary Must be set to 100 V if not used.
  • Page 43: Overcurrent Protection (Ansi 50/51)

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.4. OVERCURRENT PROTECTION (ANSI 50/51) The controller offers 4 levels of overcurrent protection, each with its own distinct parameter group. Parameter Definition Description Factory Setting I> Parameters for level 1 protection IEC, 1.00In, TMS=0.1 I>>...
  • Page 44: Negative Sequence Overcurrent Protection (Ansi 46)

    DPR-400 User Manual Rev_01 Firmware V-1.0 Curve specific parameters: PARAMETER IEC-S,V,E UK-LT,Rec IEEE-M,V,E US,US-ST Status Function Direction Set Value Time delay Time Dial DT Adder Reset Char Reset Time IDG Is IDG Time Type Table 12.1 12.5. NEGATIVE SEQUENCE OVERCURRENT PROTECTION...
  • Page 45: Broken Conductor (Ansi 46Bc)

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.6. BROKEN CONDUCTOR (ANSI 46BC) The unit offers 1 level of protection for broken conductor detection. Refer to Table 12.1 for curve specific parameters. Parameter Definition Description Factory Setting I2/I1> Parameters for level 1 protection...
  • Page 46: Frequency Protection (Ansi 81)

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.8. FREQUENCY PROTECTION (ANSI 81U / 81O) Parameter Definition Description Factory Setting F< Parameters for level 1 low frequency protection Inactive F<< Parameters for level 2 low frequency protection Inactive F> Parameters for level 3 low frequency protection Inactive F>>...
  • Page 47: Voltage Protection (Ansi 27/59)

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.10. VOLTAGE PROTECTION (ANSI 27/59) Parameter Definition Description Factory Setting V< Parameters for level 1 low voltage protection Inactive V<< Parameters for level 2 low voltage protection Inactive V> Parameters for level 3 low voltage protection Inactive V>>...
  • Page 48: Cold Load Pickup

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.12. COLD LOAD PICKUP This feature is used to prevent unnecessary trips which may occur in cases where the load is powered up suddenly after remaining unpowered for a long period of time. Only valid for “OVERCURRENT PROTECTION (ANSI 50/51)”...
  • Page 49 DPR-400 User Manual Rev_01 Firmware V-1.0 Parameter Definition Unit Factory Description Setting I>2 Status Active for level 2 protection I>2 Current Setting 0.08 40.00 1.50 Current threshold for level 2 protection Constant time delay for level 2 I>2 Delay Timer 0.00...
  • Page 50: Breaker Failure (Ansi 50Bf)

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.13. BREAKER FAILURE (ANSI 50BF) The unit offers two levels of breaker failure protection. If the fault condition persists after the trip command has been sent to the breaker and the configured timer expires, this function is activated. The function status can be assigned to a relay output.
  • Page 51: Iec60870-5-103 / Modbus Settings

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.16. COMTRADE CONFIGURATION The unit features dedicated oscillographic (Comtrade) memory for the last 20 trip events. The record files contain the waveforms of the measuring channels as well as the instantaneous positions of the digital outputs and relays.
  • Page 52: Output Paremeters

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.19. OUTPUT PARAMETERS Pulse duration and contact type for the relay outputs are adjusted from this screen. After configuring a relay output, use the button to navigate to the next relay output, and the button to return to main menu.
  • Page 53: Input / Output Matrix

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.22. INPUT / OUTPUT MATRIX The unit features a matrix display which allows for simple assignment of input signals to output variables. Assignments can be set as locked. The input signals are located from top to bottom in the matrix. These input signals are digital inputs, trip statuses and detection statuses for protection functions, and other function outputs.
  • Page 54: Ethernet Settings

    The unit sends a data packet to the defined Rainbow Address-2 address at each refresh period. The DATAKOM server address is set as the first server address. This is the account name appearing in the “from” tab E-mail Account Name d500_a of the e-mail recipient.
  • Page 55: Date & Time Settings

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.23. ETHERNET SETTINGS (continued) Aşağ The following Ethernet parameters are located under Konfi Controller Configuration group. Factory Parameter Definition Unit Description Setting The unit refreshes the Webpage Web Refresh Rate periodically at this interval.
  • Page 56: Counter Settings

    DPR-400 User Manual Rev_01 Firmware V-1.0 12.25. COUNTER SETTINGS Parameter Definition Unit Factory Description Setting Reset CB service When this parameter is set to 1, counter number of CB trips counter is reset. Counter 1 (kWh-Im) 99999999.9 Import energy counter Counter 2 (kWh-Ex) 99999999.9...
  • Page 57: Oscillographic (Comtrade) Record Settings

    DPR-400 User Manual Rev_01 Firmware V-1.0 13. OSCILLOGRAPHIC (COMTRADE) RECORD SETTINGS The unit has memory space sufficient for 7 oscillographic Comtrade records. Each record consists of 512 samples. Sampling rate and percentage of samples before CB trip are adjustable. Recorded variables are;...
  • Page 58: Modbus Communications

    DPR-400 User Manual Rev_01 Firmware V-1.0 14. MODBUS COMMUNICATIONS The unit offers MODBUS functionality in the following forms: -RS485 serial port, adjustable baud rate between 2400 and 115200 baud -Modbus TCP/IP over Ethernet port MODBUS features of the unit: -Data transfer mode: RTU...
  • Page 59: Data Formats

    DPR-400 User Manual Rev_01 Firmware V-1.0 14.3. DATA FORMATS 16-bit variables: These variables are stored in a single register. Bit_0 is the least significant bit (LSB) and Bit_15 is the most significant bit (MSB). 32-bit variables: These variables are stored in 2 consecutive registers. The 16 least significant bits are located in the first register and the 16 most significant bits are located in the second register.
  • Page 60 DPR-400 User Manual Rev_01 Firmware V-1.0 An example for reading 16 registers starting with the address 20h (32 decimal) is explained below. 01 03 00 20 00 10 45 CC (each byte is expressed by 2 hexadecimal characters) Expected reply:...
  • Page 61: Data Writing

    DPR-400 User Manual Rev_01 Firmware V-1.0 14.5. WRITING DATA Data writing can be achieved with functions 06 (write single register) or 16 (write multiple registers). Writing single register writes on only a single register. MODBUS master device sends the query which includes the data to be written.
  • Page 62: Crc Calculation

    DPR-400 User Manual Rev_01 Firmware V-1.0 14.6. CRC CALCULATION Follow the method shown below for CRC calculation, 1) A 16-bit variable named CRC with every bit set to 1 is initialized. 2) The result of the Boolean logic operation XOR of the bottom byte of CRC and the first byte of the message (Function Code) is appended to CRC.
  • Page 63 DPR-400 User Manual Rev_01 Firmware V-1.0 REGISTER VARIABLE DESCRIPTION SIZE TYPE ADDRESS (BIT) unsigned Relay Out Relay Output Positions word unsigned LED Indicators word unsigned Symbol Mimic Diagram Symbols word Voltage / Voltage Unsigned Transformer Ratio word Unsigned Current / Current...
  • Page 64: Commands

    DPR-400 User Manual Rev_01 Firmware V-1.0 14.8. COMMANDS REGISTER VARIABLE DESCRIPTION SIZE TYPE ADDRESS (BIT) Unsigned 16384 Password Programming Password word Unsigned 16385 Button Button Simulation word Unsigned 16386 Factory Factory Reset word Unsigned 16387 Reset Reset All Counters word...
  • Page 65: Measurements

    DPR-400 User Manual Rev_01 Firmware V-1.0 14.10. MEASUREMENTS REGISTER VARIABLE DESCRIPTION SIZE TYPE ADDRESS V1 Phase – Neutral 20480 V1 RMS Unsigned Voltage long V2 Phase – Neutral 20482 V2 RMS Unsigned Voltage long V3 Phase – Neutral 20484 V3 RMS...
  • Page 66 DPR-400 User Manual Rev_01 Firmware V-1.0 REGISTER VARIABLE DESCRIPTION SIZE TYPE ADDRESS U31 Phase – Phase 20520 U31 RMS Unsigned Voltage long 20522 Phase 1 Active Signed x100 Power (kW) long 20524 Phase 2 Active Signed x100 Power (kW) long...
  • Page 67: Function Alarm Information

    DPR-400 User Manual Rev_01 Firmware V-1.0 REGISTER VARIABLE DESCRIPTION SIZE TYPE ADDRESS 20606 CnfgWord Device Configuration Unsigned word 20607 IAPStatus Flash write status Unsigned (0:ok 1:error) word ReadUnloc Flash parameter read Unsigned 20608 unlock timer word PacketScc Number of Unsigned...
  • Page 68: Digital Output Information

    DPR-400 User Manual Rev_01 Firmware V-1.0 14.12. DIGITAL OUTPUT INFORMATION DESCRIPTION DESCRIPTION LED Indicator 5 Relay Output 1 LED Indicator 6 Relay Output 2 Relay Output 3 LED Indicator 7 LED Indicator 8 Relay Output 4 Relay Output 5 LED Indicator 9...
  • Page 69: Matrix Input Information

    DPR-400 User Manual Rev_01 Firmware V-1.0 14.13. MATRIX INPUT INFORMATION DESCRIPTION DESCRIPTION IN > Start (IN: Neutral Overcurrent) Digital Input 1 IN > Trip Digital Input 2 Digital Input 3 IN >> Start IN >> Trip Digital Input 4 Digital Input 5...
  • Page 70: Declaration Of Conformity

    DPR-400 User Manual Rev_01 Firmware V-1.0 15. DECLARATION OF CONFORMITY The unit conforms to the EU directives: -2014/35/EC (Low Voltage) -2014/30/EC (electro-magnetic compatibility) Norms of Reference: EN 61010 (safety requirements) EN 61326 (EMC requirements) The CE mark indicates that this product complies with the European requirements for safety, health, environmental and customer protection.

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