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Sophisticated multifunction process controller with high level communication
Process controller with PROFIBUS DP and Modbus/Jbus Master/Slave
1/4 DIN - 96x96 mm
Update time: 50 ms
Frequency input
2 analogue outputs
Setpoint programmer
Memory Chip
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The series of single loop controllers with dual LED displays are used for non-sophisticated system, state-of-art design, sufficient features, easy for operation and low-cost
FEATURES
- Easy-to-use
- Fuzzy modified PID heat & cool control
- Fast A-D sampling rate (5 times/s)
- Universal input (PT100, thermocouple) with high accuracy 18-bit A-D
- Analog output (linear current or voltage) uses high accuracy 15-bit D-A
- RS-485 RS-232 interface
- Programming port provided on board
- Support manual control & auto-tune function
- Wide variety of alarm mode selection
- Lockout protection control
- Bumpless transfer during failure mode
- Soft-start ramp and dwell timer
- Bright display stabilized with digital filter
- SEL function allows to rearrange user menu
- UL/CSA/CE approval
- High performance with low cost
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MAC Amplifier-Controller-Combination
As a compact cost effective unit, the MAC is designed to provide a closed loop control functions for strain gauge transducers (e. g. web tension measurement).
The MAC is optimized for use in electrical cabinets. There it can be DIN rail mounted or directly to a mounting plate.
The enclosure of the MAC contains an amplifier and controller.
The amplifier supplies the auxiliary power to the strain gauge transducers and conditions the output signals. Two voltage outputs with different filters are available.
The independent function of the current output can be connected either to the high or low dampened voltage output. The external use of as 10 Volts / 20 mA signal converter is also possible.
The PID components of the controller can be individually adjusted and also partially switched off. Additional adder and multiplier circuits enable the processing of other signals, e. g. diameter signal.
24 volts control signals can shut off the controller portion or gradually activate or deactivate the output signal.
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Libratherm offers Four new models of PID controllers ,Model PID-723,PID-966,PID-948 and PID-489. These are indigenously designed and developed using the latest microcontroller chip and programmed with the time tested and field proven PID algorithm. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady state control. These model offers, all the useful features which are required to control the complex system.
These models accept factory set single or dual fixed input or the user selectable universal input. The control action is user selectable as PID or On/Off for both direct and reverse or Heat and Cool action . Control outputs are given in the form of optically isolated DC pulse to drive external SSR, Triac or AC SSR to operate AC operated load, electro mechanical relay and/or linear analog output. The analog output levels can also be configured for (0-20)mA or (4-20)mA or (0-5) / (0-10) volt using the front panel key board, In brief, PID-723, PID-948 and PID-489 provides 4 switching outputs and 2 analog outputs whereas PID-966 provides 6 switching and two analog outputs. Both Auto and manual tuning of PID values makes the controller versatile and user friendly. The model PID-723,PID-948 and PID-489 being small in size, can easily be accommodated in small size equipments. One Ramp/Soak function allows user to gradually increase the set value and hold the process value for desired soak time.
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Red Lion offers a wide variety of 1/16 DIN and 1/8 DIN controllers, as well as DIN rail mounted models. All devices provide auto-tune for easy setup and an advanced control algorithm to limit overshoot.
- T16 : 1/16 DIN LOW COST PID CONTROLLER
* PID Control with Reduced Overshoot
* Accepts TC and RTD Inputs
* On Demand Auto-Tuning of PID Settings
* DC Analog Output (Optional)
* PC or Front Panel Programming
* PC Configurable with TP16KIT
- T48 : 1/16 DIN PID CONTROLLER WITH ADVANCED FUNCTIONS
* 50 mm x 50 mm
* Dual 4 Digit Display, 0.4" (10 mm) Red and 0.3" (7.6 mm) Green
* Relay, SSR Drive, Triac Outputs
* Linear DC Outputs
* Heat/Cool
* Optional Triac output
* Second setpoint setting
* Optional remote setpoint output
* Optional RS485 serial communication
- TCU : 1/8 DIN PIN CONTROLLER WITH ADVANCED FUNCTIONS
* 97 mm x 50 mm
* Dual 4 Digit, 0.4" (10 mm) LED, 0.3" (7.6 mm) LED
* Auto-tune
* Relay, SSR Drive, Triac Outputs
* Linear DC Outputs
* Heat/Cool
For simple multi-zone applications, our rail mounted Dual Loop Controller is designed to interface via Modbus, DH-485 or DeviceNet, allowing easy connection to your control system.
For more complex multi-zone applications, our state-of-the-art Modular Controller is recommended. This device provides high loop densities, and more advanced communications options, including Ethernet.
The Modular Controller includes in standard in its enhanced version:
web server for remote monitoring and control, data logging, FTP server/client, email/SMS messaging, protocol converter...etc...
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C2s
Proportional Systems Controller
The C2s is an enclosed high-speed, high-accuracy analog PID controller with an enhanced user-interface that allows the user the flexibility to create breakthrough applications.
Features:
* Mutiple PID and Feed Forward Options
* Digital GUI
* Enhanced Tuning via Digipot Adjustments
* Independent Input Signal Scaling
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C2d
Proportional Systems Controller with Integrated Driver
The C2d is an enclosed high-speed, high-accuracy analog PID controller with an enhanced user-interface that gives the user the flexibility to create breakthrough applications.
Features:
* Mutiple PID and Feed Forward Options
* Efficient PWM Driver
* Digital GUI
* Enhanced Tuning via Digipot Adjustments
* Independent Input Signal Scaling
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851/852 series electronic controllers is able to fulfill a large application range.
These instruments are especially designed for temperature control in industrial machines and process, but their capability to accept standard input analog signals (4 - 20 mA, 0 - 10 V, etc.) and to give the same standard output signal, make them suitable for different than temperature control loops too (e.g. relative humidity, PH, position, voltage, level, etc.).
TYPICAL APPLICATION AREAS :
- Plastic and rubber processing
- Packaging machinery
- Refrigerator controls
- Thermal treatments
- Food production
- Chemical processes
Textile machines and processes
851 and 852 series PID controllers have a large range of parameters adjusting field and they are intended to constitute a "building block" in whatever automatic control loop.
The ordering code composition allow the selection of the exact desired function among all the possible alternatives.
Mechanical structure is designed for fulfill all the field users request.
Plug in facility, faston or screw electrical connection, large display dimensions, reduced depth and conformity to standard DIN 43700, DIN 4050, VDE 0110, UL 508, make this instrument range suitable for acceptance in any specifications.
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PID with Time / Temperature Profiling Controllers
FEATURES:
- Total 9 profiles, a profile with 16, 32 or 64 segments at most
- Each segment to be configured as a ramp or dwell(soak)
- After an event the process goes to run, hold, abort, manual, failure
transfer, off mode, next segment or select the second PID values
- High accuracy of 18-bit A to D input, and 15-bit D to A output
- The fast sample rate of 200 msec
- Fuzzy control to reach set point at the least overshooting ans less time
- Up to three relays are configurable for event output
- Analog retransmission of process value & set point value
- Optional RS-485 or 232 communications
- Programmable port for easy configuration or calibration
- Lockout protection for security requirement
- Bumpless transfer of safely control while sensor breaks
- Digital filter to improve the stability of process value
- SEL function for easy operation
** Please visit us at coming exhibition TAITRONICS Taipei 2008 at stand I-0328 during October 7-11.
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Libratherm offers Microprocessor based Eight loop PID Temperature Controller (Model PID-8000) for processes requiring multiple zones heating or heating plus cooling control. It is most suitable for difficult process, which results in frequent system disturbances, and applications where accurate temperature of number of heating/cooling zone is required. It also eliminates the need for number of individual PID or ON/OFF Temperature Controllers thereby saves on panel size and cost. PID-8000 can accept 8 Thermocouples or RTD (Pt-100) inputs and can provide switching PID or ON/OFF Control output in the form of DC Pulses or SSR Drivers for heating as well as cooling. It can also simultaneously provide 8 analog PID control Outputs in the form of (4-20mA) or (0-5) volt, which can be used to drive external SCR Heater Power Controller or other actuators. Open or Faulty sensor indications for each zone is also displayed with the respective Zone No.
In short, PID-8000 is as good as 8 independent PID controllers.
Libratherm also supplies complete ready to user Temperature Control Panel using PID-8000, which finds its applications in large heating systems having number of sensors or number heaters needs to be controlled such Plastic Extruders manufacturing pipes, sheets etc…, Plastic Injection for runner less moulding, Tunnel Furnaces for annealing and large Ovens etc.
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DESCRIPTION:
Libratherm offers Microprocessor based Eight Zone PID Temperature indicator / Controller (Model PRC-8000)where accurate temperature control of multiple zone during Gradual Heating and Cooling is required. Each zone can be independently programmed for 16 steps of Ramp/Soak profile. Each loop parameters like PID, Hysteresis, Deviation Hold, Facility to skip unused channel etc can be programmed from the user-friendly front panel membrane keyboard.
PRC 8000 accepts 8 Thermocouples or RTD(Pt-100)3 wire inputs and can provide switching PID or ON/OFF Control output in the form of DC Pulses or SSR or relay to drive external load contactors. It can simultaneously provide 8 analog PID control outputs in the form of (4-20)mA or (0-5)volt, which can be used to control heater power through Thyristor power pack.
PRC-8000 is ideally suited for on line pre and post welding heat treatment cycle. Where the large size jobs are heated by local heating pads. Temperatures are sensed using 6 to 8 K type thermocouples fitted at different points. The common program is run for all inputs and to ensure the uniform heating cycle, the PRC-8000 offers special feature of common or individual deviation hold facility, thereby the guaranteed ramp/soak controlled is achieved. Libratherm offers ready to use panel with input/output and supply connections.
The serial interface of RS-485 in Modbus protocol is also available for operating the controller from remote computer, SCADA or DCS system.
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These are advanced controls offering the ramp/soak programmability with PID control outputs.. It is possible to control the temperature as per the desired rate of heating / cooling with the required soaking time. Different models offers different features with the facility to program 1 to 10 patterns of sixteen ramp/soak steps, which can be permanently stored in the internal non-volatile memory. The controller accepts Thermocouple or Pt-100 or mV/mA signal as the input and provides control output in the form of DC pulse, 4-20mA, 0-5V etc.. to operate various control devices such as Relay, Contactors, Motorized valves, Thyristor power pack etc...
All the models are available with serial RS485 output on MODBUS protocol and can be hooked to the computer. The supporting window based software allows programming of controller through PC as well as for on-line monitoring and storage of ramp/soak heating cycles. These controllers can be customized with dedicated logic control for special purpose heat treatment applications such as hardening, annealing, tampering etc...
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2704 and 2704f High Performance Multi-Loop Controller and Programmer with Graphical User Interface
The world's most advanced 1/4 DIN controller combining unprecedented control performance with ease of set-up. The 2704 is a 1/4 DIN plug-in high stability temperature and process controller designed to be used in demanding applications where extensive process information is required at the local control panel. It has a high visibility graphical user interface with a bright 120 x 160 pixel dot matrix display of process information. It employs universal inputs (TC, RTD, DC) with INSTANT ACCURACY™. Direct connection of Zirconia probes is also supported for carbon potential control in atmospheric combustion applications. The advanced control algorithm and gain scheduling gives straight line control, even in difficult non-linear applications and automatic tuning simplifies commissioning.
THE 2704 IS IDEAL FOR
- One, Two or Three Control Loops - PID, Ratio, Override and Cascade Types
- High Stability, Precision and Functionality
- All Features of the 2604/2604f
- Bright Graphical Front Panel
- Semiconductors, Autoclaves, Vacuum & Glass Furnaces, Environmental Chambers, Ceramic Kilns
- Pre-Configured Melt Pressure, Carbon Potential, Vacuum Control Applications
NEW FEATURES
- Ethernet modbus/TCP
- iTools Graphical Wiring
- Dual DC Output Module
- High Resolution Retransmission Module
- User Configurable Modbus Map
- Math, Logic, Timer, RTC Functions
- Setpoint Programmer
- Modbus Master Communications
- Modbus Indirection Tables
- Faster Control Loop
- Manual Power Up Mode
- Support for Barber Colman Zirconia Probe
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