Ropex 740303 - Page 24

Controller functions
Page 24 RES-403 Version 1
The relationship between the change in the output voltage and the ACTUAL temperature is linear.
An indicating instrument can be connected to this output in order to visualize the temperature of the heatsealing
band.
The characteristics of the ROPEX ATR-x temperature indicator (size, scaling, dynamic response) are ideally
suited to this application and this instrument should therefore always be used ( section 10 "Modifications
(MODs)" on page 44).
It not only facilitates SET-ACTUAL comparisons, but also enables other criteria such as the heating rate, set point
reached within the specified time, cooling of the heatsealing band etc. to be evaluated.
This indicator moreover permits disturbances in the control loop (loose connections, contacting or wiring prob-
lems) as well as any line disturbances to be observed extremely effectively and interpreted accordingly. The same
applies if mutual interference occurs between several neighboring control loops.
This output is not potential-free and might have the potential of the secondary voltage of the
impulse transformer.
0 - 300°C range
12345678910
300
T
e
m
p
er
a
ture
T
°C
20°C
"ZERO"
VDC
V
oltage U
60
90
120
150
180
210
240
270
0.66V
0 - 500°C range
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500
100
150
200
250
300
350
400
450
0.4V
°C
VDC
20°C
Temperature
T
"ZERO"
Voltage U
!