Digital temperature controller - PXF series

Thanks to their self-adjusting PID function, PID controllers PXF series automate the temperature control and management of industrial processes, saving energy and production scrap by eliminating temperature fluctuations.

Digital temperature controller - PXF series

New generation of PXF series PID controllers

• Fast
• Compact size
• User-friendly

Superior versatility and flexibility for a wide range of applications

Large number of input/output signals :

• Universal PV measurement input (resistance thermometer, thermocouple, voltage/current)
• Remote SV input (option)
• Current transformer (CT) input (option)
• Motorized valve position input (option)
• Output control (relay contact, SSR/SSC drive output, current/voltage) and in option (motorized valve control output, analog re-transmission output [current/voltage], heater burnout alarm, operating days alarm etc.)

Wide choice of control methods (with auto-tuning) :

• On/Off control
• PID control
• Fuzzy control
• 2-degrees-of-freedom PID control
• Self tuning
• Setpoint generator
• Heating/cooling control (option)
• Motorized valve control (option), etc.

Examples of advanced control functions

PID auto-tuning

PID parameters are automatically set by the controller's measurement and computation function.
This instrument provides 2 types of auto-tunning functions:
• the standard type (auto-tunning with SV used as reference)
• the low SV type (auto-tunning with the value 10% below SV used as reference)

Fuzzy logic control with auto-tuning

Fuzzy control is used to suppress overshoot so that the response to external disturbance is improved.
By monitoring PV, overshoot is suppressed with startup time remaining unchanged.
Also, disturbance can be settled quickly.
Comparison between fuzzy control and conventional control

Application examples