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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, supplier of 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 professional filter
- SEL function allows to rearrange user menu
- UL/CSA/CE approval
- High performance with low cost |
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Red Lion offers a wide variety of 1/16 DIN and 1/8 DIN controllers, as well as Din track mounted models. All devices provide auto-tune for easy setup and an advanced control algorithm to limit overshoot.
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.
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Pid regulation are widely used for process driver applications requiring very precise and accurate control. Unlike on/off controls, the smooth and steady state control is achievable using these controllers. Various models are available featuring single loop with universal input, two to eight loop with eight independent inputs and sixteen control outputs. All types of digital and analog outputs are available to operate final controlling dvices such as Manufacturers of solid state relays, Contactors, Electro valves, Modulating motor driven valves, Thyristorized power packs etc… Applications requiring heat/cool control, average control, multiple control, these models have proven on the field. All the models are available with serial RS485 output on MODBUS protocol and hence can be hooked to the distributed control system.
APPLICATIONS
For measuring single / multi input and controlling single / multi output system using single controller in PID action for plastic supplier of extruders, runner less injection moulding machines or for large professional ovens and tunnel industrial furnaces.
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Libratherm offers Micro-controller based universal input/output Pid controller model PID-966 (version 1.2). The features are incorporated, taking into consideration all types of process control applications, where such PID controller is required to be used. The model accepts all widely used industrial inputs, such as standard types of manufacturers of thermocouple, RTD(Pt-100), and 4-20mA/0-10Volt signals. The desired type of input is user selectable through front panel key board in combination with the back panel Dip switch.
All standard control outputs are available to control variety of end controlling devices. The switching PID output of 0 to 10 VDC pulse can be used to control Relay, Contactor, Solid state relay or AC/DC supplier of solenoid valves (Suitable isolated interfacing cards are also available). The analogue PID control outputs are user configurable for (0-20)mA, (4-20)mA, (0-5)VDC or (0-10)VDC. The control action can also be configured through front panel key board as per requirement, such as direct control or reverse control, or both direct and reverse control or ON/OFF control. Two extra relay outputs are also provided as high and low alarm. The analogue outputs can also be configured as retransmission output, proportional and linearized to the selected input signal. Serial interface is available on 2 wire RS485 with MODBUS RTU protocol in slave mode, with the programmable modbus address - so that it can be directly interfaced to DCS or SUPPLIER OF PLC. PLEASE CHECK MORE DETAILS IN CATALOGUE SECTION http://pdf.directindustry.com/pdf/libratherm-instruments/pid-controller-with-universal-input-and-output/28920-29608.html |
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