Eaton TC 48, User Manual

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Chapter 1 Overview Chapter 1 Overview
1-1 General 1-1 General
The Fuzzy Logic plus PID microprocessor-based controller series,
incorporate two bright, easy to read 4-digit LED displays, indicating
process value and set point value. The Fuzzy Logic technology
enables a process to reach a predetermined set point in the
shortest time, with the minimum of overshoot during power-up or
external load disturbance.
The TC48 is a 1/16 DIN size panel mount controller. The TC96 is a
1/8 DIN size panel mount controller. These units are powered by
11-26 or 90-250 VDC /VAC supply, incorporating a 2 amp control
relay output as standard. The units are fully programmable for
PT100 and thermocouple types J,K, T, E, B, R, S, N, L with no need
to modify the unit. The input signal is digitized by using a 18-bit
A to D converter. Its fast sampling rate allows the unit to control
fast processes.
By using proprietary Fuzzy modified PID technology, the control
loop will minimize the overshoot and undershoot in a shortest
time. The following diagram is a comparison of results with and
without Fuzzy technology.
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