Startup and operation
RES-430
Page 19
The direction arrow disappears again at the end of the
cooling phase (i.e. at the end of the internal timeout).
The current condition of relay K1 (or the optional
solenoid drive) is indicated by means of a separate
icon. If the icon is visible, the normally open contact of
the relay is closed or the solenoid drive is active.
Separate settings can be entered for the individual
timeouts. These settings are possible with steps 103,
104 and 105 in the Settings menu and with steps 210,
211 and 212 in the Configuration menu.
The options available with these advanced settings are
described below.
9.3.2
Setting the starting delay
The start of the heating process can be explicitly
delayed by entering a starting delay time with step 103
in the Settings menu, e.g. in order to bridge the closing
time of the heatsealing bars.
When the "START" signal is activated, the controller
waits for the time specified with this menu step to
elapse before commencing the heating process.
The starting delay can be set in the range from 0 to
9.9s. A delay of 0s is defined as the factory setting. In
this case, the heating process begins as soon as the
"START" signal is activated.
9.3.3
Setting the heatsealing time
The heatsealing time can be set in the range from 0 to
99.9s with step 104 in the Settings menu. The factory
setting is 1.0s.
9.3.4
Setting the cooling mode
Various criteria for the end of the cooling phase can be
specified with step 210 in the Configuration menu of the
RES-430 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 T
K
. This cooling
temperature can be set with step 105 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 105 in the Settings menu.
Example:
SET temperature = 180°C, cooling value = 60%
Æ
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 105 in the Settings menu.
ACTUAL
temp.
START
signal
ON
T
t
t
0
0
t
1
t
1
= Starting delay
(•) Factory setting
ACTUAL
temp.
START
signal
ON
T
t
t
0
0
t
2
= Heating phase
t
2
