Controller functions
Page 44
RES-445
heatsealing time is equal to the active time of the
"START" signal.
10.19.4 Setting the cooling mode
Various criteria for the end of the cooling phase can be
specified with step 27 in the Configuration menu of the
RES-445 controller:
The possible settings are as follows:
1.
"Absolute"
(•)
The cooling phase ends when the ACTUAL
temperature of the heatsealing band falls below a
specified temperature value. This cooling
temperature can be set with step 5 in the Settings
menu.
2.
"Relative"
The cooling phase ends when the ACTUAL
temperature falls to a value corresponding to X% of
the SET temperature. This percentage cooling
value can be set with step 5 in the Settings menu.
Example:
SET temperature = 180°C, cooling value = 60%
%
Cooling phase ends when ACTUAL
temperature
≤
108°C
3.
"Time"
The cooling phase ends after a specified time in
seconds and is independent of the ACTUAL
temperature. This cooling time can be set with
step 5 in the Settings menu.
The various cooling modes are shown below:
10.19.5 Setting the cooling value
After the cooling phase has been configured with
step 27 in the Configuration menu (
!
„Setting the cooling mode“ auf Seite 44), you can
specify the cooling parameters with step 5 in the
Settings menu.
The options available with step 5 in the
Settings menu vary according to the
selection made with step 27 in the Configuration
menu. All settings entered with menu step 5 are
overwritten if step 27 is changed subsequently.
(•) Factory setting
ACTUAL
temp.
START
signal
24VDC
T
t
t
0
0
t
2
= Heating phase
t
2
ACTUAL
temp.
START
signal
24VDC
T
t
t
0
0
Cooling mode
T
t
0
T
t
0
T
t
0
Absolute
Relative
Time
T
2
X%
t
3
t
3
t
3
t
3
= Cooling phase in °C
t
3
= Cooling phase as
% of set point
t
3
= Cooling phase in s.
!
