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Controller functions
Page 54
RES-440
Version 1
3. Directly after the controller is powered up, the AUTOCAL function cannot be activated if a fault with error code
101…103, 201…203, 801 or 9xx occurs (
section 10.26 "Fault areas and causes" on page 81). If the con-
troller has already operated correctly - a minimum of once - after powering up, the AUTOCAL function cannot
be activated with error codes 201…203, 801 or 9xx.
10.10 "START" signal (HEAT)
The heating process is activated by means of the "START" signal in different ways, depending on the time control
status (timer function) (
Configuration menu, step 209 [26]) :
1.
Time control off (deactivated):
When the "START" signal is activated, the controller-internal set/actual comparison is enabled immediately and
the heatsealing band is heated up to the SET temperature. It remains at this temperature until the signal is
deactivated again. This process can also be started independently of the "START" signal by pressing the
"HAND" key while the display is in the home position.
2.
Time control on (activated):
If time control (timer function) is on, activating the "START" signal starts the internally parameterized timeout.
The time at which the heatsealing band begins to heat up depends on the setting of this parameter. The
"START" signal must be deactivated again before the next timeout is activated.
Pressing the "HAND" key while the display is in the home position causes the heatsealing band to start heating
up immediately (as described in 1). The internal timeout is not started.
The "START" signal can be activated in two ways:
• By means of a 24VDC signal at terminals 3+4.
RES-440
max. 6mA
3
4
START
(HEAT)
+
-
GND
24VDC
START (HEAT)
or
START TIMER
HIGH:
≥
12VDC
LOW:
≤
2VDC