





DTU2300 Distribution Terminal Unit (DTU)
successes you with excellent quality, reliability and safety of efficiency performance.
Promising continuous operations
Whenever the event of failure happens,the DTU2300 maintains the operation with capabilities of robust redundancy and flexible communications options.
DTU2300 Distribution Terminal Unit (DTU) successes you with excellent quality, reliability and safety of efficiency performance.
As the demand of smarter operational performance is an increasing pressure today, to efficiently and securely monitor/control the whole processes between local/remote locations are not only job site requirements for reducing the rising energy costs but also a need for industrial operations such as oil and gas. The DTU2300 is definitely then solution you need to deliver the expertise and capabilities of your business.
The DTU2300 friendly enables you to monitor, diagnose and maintain your utility assets even in various types of environments. With abilities of accessing to timely and accurate mission-critical information from fixed assets, the DTU2300 will be able to eliminate the critical gaps in operations, resulting in higher productivity and long-term growth.
Features
With great features of easy to use and delivers significant cost savings and values, designed by 30 years experienced senior engineers from HCE, the DTU2300 is not only easy to use and but also delivers significant cost savings and values as list below:
• Wide range environmental specifications from –40 to +80 degrees Celsius continuous operation
• Inherent reliability 32bit Dual CPU, power management/supplies system, communications
• Friendly maintainability – flexible modularization configuration
• High integration with expandable I/O capacity, from 16 to 320 I/O
• Central control simplify I/O Module (Free of CPU)
• Wide current range 0.001CT to 20CT
• Power quality analysis IEC 61000-4-30 Harmonics, voltage dips, voltage unbalance, flicker
• Extensive diagnostics for remote health monitoring
• Minimum cost of field mounting
• Low cost of ownership
----------------------------------------------------------------------
Promising continuous operations
Whenever the event of failure happens, the DTU2300 maintains the operation with capabilities of robust redundancy and flexible communications options.
Firmware updating
In order to maintain operations of DTU2300 on a continuous basis, DTU2300 will be also able to receive a firmware upgraded.
Communication protocols
• DNP3.0 over TCP/IP
• Modbus TCP over Ethernet
• Modbus RTU Serial
• IEC101/104
Every controller offers 2 serial ports which can be configured to be the Modbus Master, together with providing information on its data registers.
Programming Executable
At anytime, the newest program can be downloaded while the existing program is still operating on controllers, which also smartly switches to the new control program automatically without interruption to the operation of the plant. Further, with holding in nonvolatile memory, the DTU2300 control programs are able to automatically restore between the cycles of power of/off of controllers.
Safety for Fails and cold starts
The DTU2300 will be able to either operate autonomously or adopt a user-defined safe state. After the communications have been restored, the DTU2300 continues to operate and the data are logged for transmission. In order to assume the predefined status, in event of power lose, DTU2300 atomically performs a cold restart and restores the parameters.
Features
With being able to meet demanding of various applications, DTU2300 helps you gaining competitive advantages everywhere.
DTU2300 for your system
Not only the consisting of a mixture of DO and DI cards make the DTU2300 being able to perform the maximum flexibility for your system, but also the design purpose for DTU2300 is to use in the various industrial environments especially for utilities, with excellent specifications for operating over a temperature range of -40ºC to +80ºC, and it is resistant to 30g shock and 5g vibration.
I/O cards
When output cards receive commands from the controller, they transfer commands to actuators; at the same time, the Input cards receive signals from transmitters and sensors, and convert them digitally to present to the controller. The DTU2300 offers wide ranges of cards, typically including 4, 8, 16 and 24 field channels.
Strip terminals
With strip terminals of DTU2300 support the interface between the I/O cards and the field wiring. To prevent the inadvertently connection to wrong type of terminal, the mechanical keying system helps I/O cards to avoid these failures.
Racks
With 5 different models of racks, the DTU2300’s physical and electrical backboard provides a mounting to support and interconnect the power supplies, I/O cards and strip terminals. Further, racks also carry the address, data and power lines of the internal rail bus. Racks provide termination points for the LAN and field wiring cable shields; also it distributes the power to the all the cards.
Power Management System
Power management system is not only available to convert local AC or DC supplies to power the DTU2300 and provide field power for I/O cards, but also be able to manage the UPS function with software control links to CPU module internally. With power management system of DTU2300 the back up UPS battery can be efficiently increasing the service life by feature of definable discharge cycle time and discharge duration, short circuit protection for all powered branches, and cell cut off function under low limit voltage.
Fault Current Detection
The fault current detection with DTU2300 is a powerful measurement feature for power quality. Fault current detection not only provides the over current detection between phase to phase and phase to neutral, but also to detects over current direction. User can selects more than 10 types of standard protection curve, and also the multiple over current, time of over current, and parameter of MTA angle can be user defined by software
Synchronization Detection
In order to detect the synchronization AC power by DTU2300, the feature of synchronization detection is not only able to ,monitor the switching in load transformation, but also DTU2300 to detect the minimizing the error percentage between difference band in frequency, voltage magnitude and phase angle.
Power Quality Analysis
Power quality analysis is a specialized measurment feature which to support reliable power quality by DTU2300. As green energy concept , power qualiry event and incidents may result from power utilities system, and it influence by parameter of voltage, current and frequency. The feature of Power quality analysis by DTU2300 to prevent unstable power event and analysis of power quality in advance, and the greatly reduce management costs and improve efficiency.
successes you with excellent quality, reliability and safety of efficiency performance.
Promising continuous operations
Whenever the event of failure happens,the DTU2300 maintains the operation with capabilities of robust redundancy and flexible communications options.
DTU2300 Distribution Terminal Unit (DTU) successes you with excellent quality, reliability and safety of efficiency performance.
As the demand of smarter operational performance is an increasing pressure today, to efficiently and securely monitor/control the whole processes between local/remote locations are not only job site requirements for reducing the rising energy costs but also a need for industrial operations such as oil and gas. The DTU2300 is definitely then solution you need to deliver the expertise and capabilities of your business.
The DTU2300 friendly enables you to monitor, diagnose and maintain your utility assets even in various types of environments. With abilities of accessing to timely and accurate mission-critical information from fixed assets, the DTU2300 will be able to eliminate the critical gaps in operations, resulting in higher productivity and long-term growth.
Features
With great features of easy to use and delivers significant cost savings and values, designed by 30 years experienced senior engineers from HCE, the DTU2300 is not only easy to use and but also delivers significant cost savings and values as list below:
• Wide range environmental specifications from –40 to +80 degrees Celsius continuous operation
• Inherent reliability 32bit Dual CPU, power management/supplies system, communications
• Friendly maintainability – flexible modularization configuration
• High integration with expandable I/O capacity, from 16 to 320 I/O
• Central control simplify I/O Module (Free of CPU)
• Wide current range 0.001CT to 20CT
• Power quality analysis IEC 61000-4-30 Harmonics, voltage dips, voltage unbalance, flicker
• Extensive diagnostics for remote health monitoring
• Minimum cost of field mounting
• Low cost of ownership
----------------------------------------------------------------------
Promising continuous operations
Whenever the event of failure happens, the DTU2300 maintains the operation with capabilities of robust redundancy and flexible communications options.
Firmware updating
In order to maintain operations of DTU2300 on a continuous basis, DTU2300 will be also able to receive a firmware upgraded.
Communication protocols
• DNP3.0 over TCP/IP
• Modbus TCP over Ethernet
• Modbus RTU Serial
• IEC101/104
Every controller offers 2 serial ports which can be configured to be the Modbus Master, together with providing information on its data registers.
Programming Executable
At anytime, the newest program can be downloaded while the existing program is still operating on controllers, which also smartly switches to the new control program automatically without interruption to the operation of the plant. Further, with holding in nonvolatile memory, the DTU2300 control programs are able to automatically restore between the cycles of power of/off of controllers.
Safety for Fails and cold starts
The DTU2300 will be able to either operate autonomously or adopt a user-defined safe state. After the communications have been restored, the DTU2300 continues to operate and the data are logged for transmission. In order to assume the predefined status, in event of power lose, DTU2300 atomically performs a cold restart and restores the parameters.
Features
With being able to meet demanding of various applications, DTU2300 helps you gaining competitive advantages everywhere.
DTU2300 for your system
Not only the consisting of a mixture of DO and DI cards make the DTU2300 being able to perform the maximum flexibility for your system, but also the design purpose for DTU2300 is to use in the various industrial environments especially for utilities, with excellent specifications for operating over a temperature range of -40ºC to +80ºC, and it is resistant to 30g shock and 5g vibration.
I/O cards
When output cards receive commands from the controller, they transfer commands to actuators; at the same time, the Input cards receive signals from transmitters and sensors, and convert them digitally to present to the controller. The DTU2300 offers wide ranges of cards, typically including 4, 8, 16 and 24 field channels.
Strip terminals
With strip terminals of DTU2300 support the interface between the I/O cards and the field wiring. To prevent the inadvertently connection to wrong type of terminal, the mechanical keying system helps I/O cards to avoid these failures.
Racks
With 5 different models of racks, the DTU2300’s physical and electrical backboard provides a mounting to support and interconnect the power supplies, I/O cards and strip terminals. Further, racks also carry the address, data and power lines of the internal rail bus. Racks provide termination points for the LAN and field wiring cable shields; also it distributes the power to the all the cards.
Power Management System
Power management system is not only available to convert local AC or DC supplies to power the DTU2300 and provide field power for I/O cards, but also be able to manage the UPS function with software control links to CPU module internally. With power management system of DTU2300 the back up UPS battery can be efficiently increasing the service life by feature of definable discharge cycle time and discharge duration, short circuit protection for all powered branches, and cell cut off function under low limit voltage.
Fault Current Detection
The fault current detection with DTU2300 is a powerful measurement feature for power quality. Fault current detection not only provides the over current detection between phase to phase and phase to neutral, but also to detects over current direction. User can selects more than 10 types of standard protection curve, and also the multiple over current, time of over current, and parameter of MTA angle can be user defined by software
Synchronization Detection
In order to detect the synchronization AC power by DTU2300, the feature of synchronization detection is not only able to ,monitor the switching in load transformation, but also DTU2300 to detect the minimizing the error percentage between difference band in frequency, voltage magnitude and phase angle.
Power Quality Analysis
Power quality analysis is a specialized measurment feature which to support reliable power quality by DTU2300. As green energy concept , power qualiry event and incidents may result from power utilities system, and it influence by parameter of voltage, current and frequency. The feature of Power quality analysis by DTU2300 to prevent unstable power event and analysis of power quality in advance, and the greatly reduce management costs and improve efficiency.
To efficiently and securely monitor/control the whole processes between local/remote locations to reduce the for industrial operations such as oil and gas. The DTU2300 ienables you to monitor, diagnose and maintain your utility assets in various types of environments.
With great features of easy to use and delivers significant cost savings and values, designed by 30 years experienced senior engineers from HCE, the DTU2300 is not only easy to use and but also delivers significant cost savings and values as list below:
- Wide range environmental specifications from –40 to +80 degrees Celsius continuous operation
- Inherent reliability 32bit Dual CPU, power management/supplies system, communications
- Friendly maintainability – flexible modularization configuration
- High integration with expandable I/O capacity, from 16 to 320 I/O
- Central control simplify I/O Module (Free of CPU)
- Wide current range 0.001CT to 20CT
- Power quality analysis IEC 61000-4-30 Harmonics, voltage dips, voltage unbalance, flicker
- Extensive diagnostics for remote health monitoring
- Minimum cost of field mounting
- Low cost of ownership
Accuracy
- 1. Processing module
- CPU 32 bits dual Arms
- Interface Standard Ethernet RJ-45 x 1 ; RS-232 x 2 ; RS-485 x 1
- Option Ethernet RJ-45 x 1
- Protocol IEC 101
- IEC 104
- DNP 3.0
- Modbus RTU
- Event logger Ring buffer
- Control output 256
- Fault current 256
- System 256
- I/O fetching and control Central scanning to I/O bus
- AI channels 108 maximum
- DI bus 32 with 320 points acknowledgment maximum
- DO bus 16 with 160 points controlling maximum
- AC input configuration Wiring and software setup Detection ( * = software composed)
- Voltages / Bus 3U – 3 phase 4 wires Va, Vb, Vc, *V0
- 3U – 3 phase 3 wires *Va, *Vb, *Vc
- Currents / Feeder 4I / Ia, Ib, Ic, I0 Ia, Ib, Ic, I0
- 3I / Ia, Ib, Ic Ia, Ib, Ic, *I0
- 3I / Ia, I0, Ic Ia, *Ib, Ic, I0
- 2I / Ia, Ic Ia, *Ib, Ic
- DC input configuration Definable scale counts setup (AI with DC module)
- AD Conversion 16 bits synchronized A-D converters
- 24 ADC for DTU-2300A
- 16 ADC for DTU-2300B / DTU-2300C
- 8 ADC for DTU-2300D / DTU-2300F
- Fault current detection Phase and neutral fault with directional detection
- 12 inversed curves (ANSI, IEC, IEEE)
- 4 flexible curves
- 1 definite time
- Current pick up 0.01CT to 20CT, step 0.01CT
- Time delay multiple 1-500 of defined basic curves
- MTA 0 to 359.9°, step 0.1°
- Synchronization detection Switching in load transformation
- Difference band in frequency, voltage magnitude and phase angle
- Power quality analysis (option) IEC 61000-4-30 (only for DTU-2300C, D, F models)
- Harmonic analysis, 1-17th
- Voltage dips
- Voltage unbalance (zero and negative sequence)
- Flicker △V10 or PST
- 2. AI module
- 2.1 Input range
- AC input mode
- Voltages Frequency 45-65 Hz
- 0-300V phase to neutral
- 0-520V phase to phase
- Maximum over ≦1000Vrms 2 seconds
- Input resistance 1MΩ ±1%
- Currents CT 5A or CT 1A
- Nominal range ≦2 x CT
- Fault range ≦20CT non saturated
- ≦3CT continuous
- ≦25CT 2 seconds
- ≦50CT 1 seconds
- ≦100CT 0.5 seconds
- Burden ≦0.1VA for 1 x CT input
- DC input mode Differential mode
- 4-20mA / 0-20mA / 0-10mA / 0-5mA / 0-1mA
- 1-5V / 2-10V / 0-10V / 0-5V / 0-1V
- Input resistance
- Voltage ≧ 1-10MΩ ; current ≦ 100Ω
- 2.2 Measured parameters
- Bus frequency 0.05% of nominal frequency
- Bus voltage (RMS) 0.25% of nominal voltage
- Phase voltage Va, Vb, Vc
- Line voltage Vab, Vbc, Vca
- Currents (RMS) 0.25% of nominal CT, Ia, Ib, Ic, I0
- Active power (watts) 0.5% of (nominal voltage x CT)
- Reactive power (Var) 0.5% of (nominal voltage x CT)
- Apparent power (VA) 0.5% of (nominal voltage x CT)
- Active energy (WH) 0.5% of (nominal voltage x CT)
- Reactive energy (VarH) 0.5% of (nominal voltage x CT)
- Power factor 0.5% fs
- Fault currents (RMS) 2% fs (fs = 20 x CT)
- DCV / DCmA 0.1% fs
- Voltage sequence 0.25% of positive sequence
- Positive sequence
- Negative sequence
- Zero sequence
- Voltage unbalance (option) 0.25% of positive sequence
- Harmonics (option) 0.25% of fundamental (1-17th)
- Voltage dips (option) ABCD block and duration
- Flicker (option) △V10 or PST
- 2.1 Input range
- 3. DI module
- Interface 32 points / module
- Exciting voltage 24V or 48V DC
- Isolation, 3KVrms photo isolated
- SOE Resolution 1ms
- Debounce 5-255ms, step 1ms
- 4. DO module
- Interface 16 relays to 8 pairs / module
- Photo isolated drive, 3KVrms isolation
- 10A / 250VAC / 30VDC
- 5A / 48VDC
- Logic control Check before execution with two step drive
- Two’s complementary command drive, with noise immunity
- Hardware assurance limit one DO activation at any case
- Output mode Pulse output
- Duration 50-65535ms, step 1ms
Certifications
- CE









