Đặc tính kỹ thuật Bộ điều khiển nhiệt độ TTM-002W-R-A
● Self-Tuning PID (Heating / Cooling)
The most appropriate PID constant is automatically computed for the controlled objects.
PID constant is computed by performing the tuning, or when the hunting occurs.
● Blind Function
From the various existing parameters, only the required parameters can be
indicated or set.
● Simplififi ed Timer Function
ON/OFF setting control is available after some certain interval. Function of ON/
OFF alarm output is independently usable.
● Priority Display
Demanding parameter screens are monitored and set up under operational mode
screen. (max. 9 points)
● Multiple Inputs
Thermocouple / R.T.D. (Pt100 & JPt100) are selectable by front key.
● External Standard
Conforms to "UL", "cUL" and "CE" markings (except TTM-002W) and compliant to
"IP66"equivalent.
The 6 substances restricted by the RoHS directives are not used.
● Compact Size
Compactly made with the depth of only 77mm (002W is 95mm).
● Manual Control (Balanceless & Bumpless)
Manual output function is applicable for versatile applications of instrumentation
systems.
● Sampling Cycle: 250mS
● Communication Function (RS-485: TOHO Protocol / MODBUS)
The communication distance is extended up to 500 m, and max. of 31 units
of controllers can be connected to a single computer at a time. Centralized
supervision is available for collectiion of the whole data and alterration of setting
values at remote location.
● Digital PV Filter
A fi ltering is possible with a software for abrupt alteration of input value.
● PID with Overshoot Control Function
A PID control is available to control the overshoot which occurs when the control
is just starting.
Further, in order to improve the controllability, PID algorithm of TTM-200 series
had been introduced.
● DI Function
The following functions are switchable:
① SV / SV2
② RUN / READY
③ AUTO (RUN) / Manual
④ Normal / Reverse Action
⑤ AT (Auto-Tuning) Start
⑥ Normal (SV2) / Reverse Action (SV)
⑦ TIMER Start / Reset
● Others
① CT Input (w/ Input Monitor)
② Shift setting of OFF position during the ON / OFF control (for both Output 1 & 2).
③ Heating / Cooling Control (w/ PID Control Function on Cooling Side).
④ Ramp Function