Product Description
Digital Process Controller is specifically designed for offering high accuracy control of different process. Thereof, this is widely used in diffusion and conveyor furnaces. It is well accepted in the market for offering a versatile way of automating the diffusion process. The controller is engrossed with user friendly programmed functions that make it well appreciated for easy accessibility. We are designing this range with advanced machine and quality tested materials in adherence to set quality standards. Digital Process Controller is easily accessible to our clients at economical rates.
Advantages:
- High speed functioning
- Good accuracy
- Optimum performance
Compact size program controller with high functionality and high performance
Features :
High functional, performance oriented and compact size digital program controller, that features:
Specifications of Program Controller: One can find 15 patterns and 99 steps in a liquid crystal display program controller.
Full Multiple Inputs: There are total 13 types of thermocouple inputs, which include:
- 2 types of RTD input
- 5 types of Voltage input
- 1 type of Current input
A liquid crystal display:
- 5 digits of the indication range
- Seven segments of indication
- LED for back light
Backup and Initialization for the Setting Value :
- Compact Size : The compact sized body with 65mm depth. When TTM-339 is mounted, the protrusion of the front panel is 2mm.
- Loader communication function: With this functions, a complicated parameter important to program control can be set up.
- Cable: can be purchased separately
- Software: free software available
- Blind function: System configuration is done, to allow display of only selected parameters from the parameters set.
- Manual control: A manual output function enhances its usage in several instrumentation systems.
Communication function (RS485: TOHO exclusive protocol / MODBUS):
- The maximum length of cable can be 500m, and it can connect up to 31 units simultaneously.
- With one host computer, the user can have a centralized control on data collection and changes of respective setting value from a distance place.
Function :
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Program specifications
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Output in operation/End signal output selectable and configurable
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External drive signal selection
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Internal operation, external operation
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Temperature range setting for
power failure recovery
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Temperature input
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0.0 to 2999.9, 0 to 2999(oC)
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Analog input
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0 to 2999 (digit)
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Timer specifications
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Setting unit
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1 min
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Setting time
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0 to 99 hrs 59 min
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Setting accuracy
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+(0.5% +0.5 sec) of setting time
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Manipulated variable
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Manipulated variable function selection (MLF) |
None, Manipulated variable limiter, manipulated variable current limiter
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Manipulated variable limiter
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Upper limit
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MLL1 to 100.0 (%), MLL2 to 100.0(%)
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(MLH1 to MLH4)
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MLL3 to 100.0(%), MLL4 to 100.0(%)
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Lower limit
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0.0 to MLL1(%), 0.0 to MLL2(%)
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(MLL1 to MLL4)
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0.0 to MLL3(%), 0.0 to MLL4(%)
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Manipulated variable change
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Percentage of rise for manipulated variable
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0.0 to 549.9(%)(0.0% : function OFF)
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limiter rise
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Rise time of manipulated variable
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0 to 3600 (sec) (0: function is none)
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Setting limiter (SLL), (SLH)
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Upper limit (SLH)
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Temperature input
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(SLL+5.0) to SV setting range upper limit, (SLL+5) to SV setting range upper limit (oC ) |
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Analog input
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(SLL+50) to SV setting range upper limit (digit)
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Lower limit (SLL)
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Temperature input
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SV setting range lower limit to (SLH-5.0), SV setting range lower limit to (SLH-5)(oC ) |
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Analog input
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SV setting range lower limit to (SLH-50) (digit)
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Scaling setting
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Upper limit (FSH1)
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FSL1 to 29999 (digit)
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(Analog input only)
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Lower limit (FSL1)
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19999 to FSH1 (digit)
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Control type (CNT)
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PID control, ON/OFF control
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PV correction gain setting (PVG)
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0.500 to 2.000 (times)
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PV correction zero setting (PVS)
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Temperature input
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999.9 to 999.9, 999 to 999(oC )
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Analog input
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9999 to 9999 (digit)
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PV filter setting (PDF1)
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0.0 to 99.9 (sec)
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Special PV filter setting (PDFS)
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0.0 to 99.9 (sec)
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Anti reset windup
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0.0 to 110.0 (%) (Function OFF by 110.0% setting)
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Manual reset
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0.0 to 100.0 (%) (100.0 to 100.0 (%) if there is auxiliary control)
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Main control loop abnormal
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PV variation setting
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Temperature input
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0.0 to 999.9, 0 to 999 (oC )
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Analog input
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0 to 9999 (digit) (The decimal point position is the specified position.) |
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Time setting
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0 to 3600 (sec)
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Decimal point position setting
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Temperature input
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1oC , 0.1oC
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(DP)
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Analog input
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1/digit, 0.1/digit,0.01/digit, 0.001/digit, 0.0001/digit
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Lock function (LOC)
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Normal screen, pattern No. setting mode, alarm temperature setting mode, PID setting mode, common parameter setting mode (SET1 to 12), setting temperature (all steps at one time), wait function setting (all steps at one time), time signal 1 to 4 function setting (all steps at one time), manipulated variable limiter function setting (all steps at one time), setting time (all steps at one time), end signal ON time
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Universal Input FlexibilityThe controller accepts a wide range of input signals including RTD, thermocouples, milliamp, and voltage, allowing it to adapt seamlessly to diverse industrial sensors. This versatility makes it suitable for process monitoring in manufacturing, chemical, and utility applications, supporting up to two configurable set points for tailored control needs.
Robust Construction for Industrial EnvironmentsConstructed from durable ABS plastic, the enclosure resists wear and maintains performance in demanding conditions. With an operating temperature range of 0C to 50C and a humidity tolerance below 85% RH, this panel-mount controller is engineered for longevity and safety in various settings.
Accurate, Customizable ControlBoasting 0.5% FS measurement accuracy, the controller ensures precise monitoring and regulation of processes. Dual set points and configurable audio/visual alarms provide immediate alerts and intervention capabilities, enhancing process reliability and operational efficiency.
FAQs of Digital Process Controller:
Q: How do I connect different sensor types to this process controller?
A: The controllers universal input supports a variety of sensors such as RTD, thermocouple, milliamp, or voltage sources. You can select the input type through the devices configuration settings, ensuring compatibility with existing equipment.
Q: What are the main benefits of having two set points?
A: With two programmable set points, you can establish different process thresholds for alarms, control outputs, or system responses, allowing for sophisticated and automated process management tailored to your applications needs.
Q: When should I use relay, SSR, or analog output for control?
A: Choose relay or SSR outputs for straightforward ON/OFF control, such as switching motors or heaters. Analog output is suitable for modulating devices like variable speed drives or proportional valves requiring precise control signals.
Q: Where should the Digital Process Controller be installed?
A: It is designed for panel mounting, ideally in a clean, dry location within the specified temperature (0C to 50C) and humidity (<85% RH, non-condensing) ranges to ensure reliable performance and easy access for monitoring.
Q: What is the process for configuring audio/visual alarm settings?
A: Alarm parameters can be configured using the controllers front panel interface. You can assign audio alerts, visual indicators, or both to trigger at the two set points based on your process requirements, providing timely notifications.
Q: How does the controller maintain accuracy in process monitoring?
A: With 0.5% full-scale accuracy, the device delivers precise readings, minimizing deviation from the actual process value, which is essential for quality control and process safety in industrial applications.
Q: What are the usage limitations regarding pressure?
A: The controller is rated for systems operating at pressures up to 10 bar, making it suitable for a wide range of processes, but not recommended for applications exceeding this pressure specification.