Controller functions
Page 22
RES-403
(terminals 14+15) is 0…3°C (corresponds to app.
0 VDC) during this process.
If the temperature of the heatsealing band varies on
controllers manufactured as of October 2005, the
"AUTOCAL" function is executed a maximum of three
times. If the function still cannot be terminated
successfully, an error message appears
(
ª
section 6.12 "Error messages" on page 26).
You should always wait for the heatsealing
band and the bar to cool down (to ambient
temperature) before activating the AUTOCAL func-
tion.
Reasons for disabled AUTOCAL function:
1. The AUTOCAL function cannot be activated until
10 seconds after the controller is switched on. If you
attempt to activate it sooner, it will not function.
2. The AUTOCAL function is not activated if the heat-
sealing band is cooling down at a rate of more than
0.1K/sec. If the control signal is activated, the func-
tion is activated automatically providing the cooling
rate has fallen below the above mentioned value.
3. If the "START" signal (24VDC) is active, the
AUTOCAL function is not executed ("HEAT" LED
lit).
4. AUTOCAL cannot be activated if error codes
101…103, 201…203, 801 or 9xx (up to September
2005: error codes 1…3, 5…7) occur at start-up.
AUTOCAL cannot be activated with error codes
201…203, 801 or 9xx (up to September 2005: error
codes 5…7). If the controller has operated correctly,
at least one time, after start-up (
ª
section 6.12
"Error messages" on page 26).
If the AUTOCAL function is disabled and if
you attempt to activate it then the
"AUTOCAL" LED blinks.
6.5
"START" signal (HEAT)
When the "START" signal is activated, the controller-
internal set/actual comparison is enabled and the heat-
sealing band is heated up to the SET temperature. It
remains at this temperature until the signal is deacti-
vated.
The "HEAT" LED on the front panel of the RES-403 is
lit continuously for the duration of the heating phase.
The "START" signal can be activated in two ways:
• By means of a 24VDC signal at terminals 12+13
or
• By means of a control contact at terminals 15+18
The "START" signal is disabled as long as the
AUTOCAL function is executing ("AUTOCAL" LED lit,
"HEAT" LED blinks).
The terminals 15+18 are not potenial-free and
might have the potential of the secondary
voltage of the impulse transformer.
For the terminals of the control contact touch
voltage protection must be installed.
External grounding is not allowed. If this war-
ning is ignored, the controller will be
damaged by frame currents.
!
!
13
12
RES- 403
max. 6mA
START
(HEAT)
24VDC
LOW: 2VDC
START
(HEAT)
HIGH: 12VDC
GND
15
18
RES- 403
max.
5mA
0V
START
(HEAT)
with
contact
!
!
!
