Startup and operation
Page 18
RES-402
Version 1
the housing). The yellow "AUTOCAL" LED lights up for the duration of the calibration process
(approx. 10…15s). A voltage of app. 0V appears at the same time at the actual value output (terminals 11+12).
If an ATR-3 is connected, it indicates 0…3°C.
When the zero point has been calibrated, the "AUTOCAL" LED goes out and a voltage of 0.66V appears at the
actual value output instead. If an ATR-3 is connected, it must be set to "Z".
If the zero point has not been calibrated successfully, the red "ALARM" LED blinks slowly (1Hz). In this case
the controller configuration is incorrect (
section 6.2 "Controller configuration" on page 15 and ROPEX Appli-
cation Report). Repeat the calibration after the controller has been configured correctly.
10.When the zero point has been calibrated successfully, set a defined temperature at the set point input
(terminal 15) and apply the "START" signal (HEAT). The "HEAT" LED then lights up. The heating and control
process can be observed at the actual value output:
The controller is functioning correctly if the temperature (which corresponds to the signal change at the analog
output) follows a harmonious curve, in other words it must not jump abruptly, fluctuate or deviate temporarily in
the wrong direction. This kind of behavior would indicate that the U
R
measuring wires have been laid incor-
rectly.
If an error message is displayed, please proceed as described in section 7.9 "Error messages" on page 27.
11.Burn in the heatsealing band (
section 6.3.1 ""Burning in" the heatsealing band" on page 16) and repeat the
AUTOCAL function.
6.4.2
Restart after replacing the heatsealing band
To replace the heatsealing band, proceed as described in section 6.3.1 ""Burning in" the heatsealing band" on
page 16 .
Always use a heatsealing band with the correct alloy, dimensions and copper-plating in order to
avoid malfunctions and overheating.
Continue with section 6.4.1, steps 4 to 11.
The controller is now
ready
!
