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34 Application on industrial kilns
Controller ATR620 has a wide range of applications on industrial
kilns, environmental chambers, furnaces, dryers…
Certainly some of the most common application fields are
electrical kilns for ceramics, glass, metalworking. Below some
examples with a short list of main configuration parameters.
35 Kiln with single thermocouple and SSR control
This is probably the most typical application of controller ATR620,
using only main capabilities of the unit and still keeping high user-
friendliness..
On electrical kilns ATR620 performs control loop for the
programmed cycle reading thermocouple value and controlling
SSR. In case that alarm conditions, as overshooting of max.
temperature, are noticed relay A1 is activated to open the circuit
with safety contactor, along with acoustic signal of internal buzzer
and a flashing signal on display. Should the kiln door accidentally
open, this is also an alarm condition: cycle is stopped and a
corresponding message is visualized on display.
Programming of main parameters:
P-01 0009 15 cycles available, 20 steps each
Special functions are desabled
P-02 1000 Select thermocouple K (ex.:1100 for TC typeS)
P-05 5000 Select SSR control output for process 1
P-06
0
Minimum temperature (lower limit scale) 0°C
P-07 1350 Max. temperature (upper limit scale) 1350°C
P-12 1101 Max. temperature alarm with cycle block
P-15 1300 Alarm setpoint: if kiln temperature is over 1300°C,
the cycle is stopped.
P-17 5100 Alarm on digital input for cycle block and signal
“Open door”
