Description of the controller
Page 6
RES-403
4
Description of the controller
The microprocessor technology endows the RESIS-
TRON temperature controller RES-403 with previously
unattainable capabilities:
• Very simple operation thanks to AUTOCAL, the
automatic zero calibration function.
• Good dynamic response of the control system
thanks to AUTOTUNE, which adapts automatically
to the controlled system.
• High precision thanks to further improved control
accuracy and linearization of the heatsealing band
characteristic.
• High flexibility: The AUTORANGE function (as of
October 2005) covers a secondary voltage range
from 0.4V to 120V and a current range from 30A to
500A.
• Automatic adjustment to the line frequency in the
range from 47Hz…63Hz.
• Increased protection against dangerous conditions,
such as overheating of the heatsealing band.
The ACTUAL temperature of the heatsealing band is
supplied to an analog 0…10VDC output. The real heat-
sealing band temperature can thus be displayed on an
external temperature indicator (e.g. ATR-x).
The RESISTRON temperature controller RES-403 fea-
tures an integrated fault diagnosis function, which tests
both the external system (heatsealing band, wiring etc.)
and the internal electronics and outputs a selective
error message in case of a fault.
To increase operational safety and interference immu-
nity, all 24VDC logic signals are electrically isolated
from the controller and the heating circuit.
Coding switches on the temperature controller itself
can be used to adapt to different heatsealing band
alloys (Alloy-20, NOREX etc.) and set to the required
temperature range (0…300°C, 0…500°C etc.).
The compact design of the RESISTRON temperature
controller RES-403 and the plug-in connections make
this controller easy to install.
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Accessories and modifications
A wide range of compatible accessories and peripheral
devices are available for the RESISTRON temperature
controller RES-403. They allow it to be optimally
adapted to your specific heatsealing application and to
your plant's design and operating philosophy.
5.1
Accessories
The products described below are only a few of the
wide range of accessories available for RESISTRON
temperature controllers (
ª
"Accessories" leaflet).
Analog temperature meter ATR-x
For front panel mounting or mounting on a top hat rail (DIN TS35 rail).
Analog indication of the ACTUAL temperature of the heatsealing band in °C. The
meter damping of the unit is optimized for the abrupt temperature changes that occur
in impulse mode.
Digital temperature meter DTR-x
For front panel mounting or mounting on a top hat rail (DIN TS35 rail).
Digital indication of the ACTUAL temperature of the heatsealing band in °C, with
HOLD function.
Set point potentiometer PD-x
Front panel mounting version for setting the required SET heatsealing temperature
of the RESISTRON temperature controller. The number which appears on the dis-
play corresponds to the SET heatsealing temperature in °C.
