
Startup and operation
Version 1
RES-408
Page 29
8. Activate the AUTOCAL function on the T-408-1 (or T-400) terminal while the heatsealing band is cold. "AC"
blinks on the terminal display for the duration of the calibration process (approx. 10…15s) (the yellow
"AUTOCAL" LED lights up as well on all controllers manufactured as of June 2006). A voltage of app. 0V
appears at the same time at the actual value output (terminals 17+18). If an ATR-x is connected, it indicates
0…3°C.
When the zero point has been calibrated, the terminal display returns to the home position and a voltage of
0.66V (300°C range) or 0.4V (500°C range) appears at the actual value output instead. If an ATR-x is con-
nected, it must be set to "Z". The "AUTOCAL" LED goes out again on controllers manufactured as of
June 2006.
If the zero point has not been calibrated successfully, an alarm is indicated on the terminal display. In addition,
the red "ALARM" LED blinks slowly (1Hz) on all controllers manufactured as of June 2006. In this case the
controller configuration is incorrect (
section 10.2 "Controller configuration" on page 25 and ROPEX Applica-
tion Report). Repeat the calibration after the controller has been configured correctly.
9. When the zero point has been calibrated successfully, select a defined SET temperature and activate the
"START" signal (HEAT). The "SEALHEAT" LED on the terminal then lights up. The ACTUAL temperature
appears on the display. The heating and control process can now be observed
The controller is functioning correctly if the temperature has a continuous 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 wire has been laid incorrectly.
If an error message is displayed, please proceed as described in section 11.21 "Error messages" on page 52.
10.Burn in the heatsealing band (
section 10.3.2 "Burning in the heatsealing band" on page 27) and repeat the
AUTOCAL function.
10.4.2 Restart after replacing the heatsealing band
To replace the heatsealing band, proceed as described in section 10.3.2 "Burning in the heatsealing band" on
page 27 .
Always use a heatsealing band with the correct alloy, dimensions and copper-plating in order to
avoid malfunctions and overheating.
Continue with section 10.4.1, steps 4 to 10.
The controller is now
ready
!