Controller functions
RES-403
Page 27
You should always wait for the heatsealing
band and the bar to cool down (to ambient
temperature) before activating the AUTOCAL
function.
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
function 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
If the AUTOCAL function is disabled and if
you attempt to activate it then the
"AUTOCAL" LED blinks.
9.5
"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 termi-
nals of the control contact touch voltage protection
must be installed. External grounding is not
allowed. If this warning is ignored, the controller
will be damaged by frame currents.
The set point that is selected for the heatsealing tempe-
rature must be greater than 40°C. If not, the heat-
sealing band will not be heated up ("HEAT" LED
blinks).
!
!
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
!
!