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Controller functions
Page 56
RES-440
Version 1
• By means of a control contact at terminals 2+19
(only available in devices supplied after October 2002)
The "START" signal is disabled as long as the AUTOCAL function is executing in the Settings menu
(with step 107 [7]).
The value that is selected for the preheating temperature (step 102 [2] in the Settings menu) must be greater than
40°C. If not, the heatsealing band will not be heated up.
The alarm relay is switched if the "PREHEAT" signal is activated while an error message is indicating error codes
104…105, 111…113 or 211 (
section 10.26 "Fault areas and causes" on page 81). The heatsealing band is like-
wise not heated.
If a "PREHEAT" signal is active, it is deactivated internally for the duration of a heating and control process that is
activated either by means of the "START" signal or by pressing the "HAND" key.
The ACTUAL temperature shows whether the heatsealing band is heated up to the preheating temperature cor-
rectly, providing the display is in the home position.
RES-440
19
PREHEAT
with
contact
0V
2
max.
5mA
!
"PREHEAT"
signal
ACTUAL
temperature
"START"
signal
24VDC
24VDC
T
2
T
1
T
1
= Preheating temperature (PREHEAT)
T
2
= Heatsealing temperature
t
t
t
0
0
0