8 | Functions and settings
Page 74 of 104 CIRUS
®
UPT-6400 VERSION 1 | EN-US
3. When the system has been heated to 95% of the setpoint temperature
(T=180°C) the normally open contact of relayK1 should close. This switches on
the solenoid valve, and the sealing jaws close. At the same time, the sealing time
t
2
=1sec) begins to run.
4. The heating elements are not heated again at the end of the sealing phase (i.e.
the end of the sealing time). The cooling phase begins.
5. The cooling phase ends when the actual temperature of the heating elements falls
to T≤80°C. The sealing jaws are still closed at this time (normally open contact
of relayK2 is still closed).
6. The normally open contact of relayK1 opens again at the end of the cooling
phase. The sealing jaws open again.
7. The sealing process is completed.
Chronological
sequence
OFF
0
t
t
t
180
°C
80°C
O
N
START signal
Actual temperature
Normally open
contact of relay K1
95% of 180°C
1s
closed
open
Illustration29: Chronological sequence
Essential settings
These setting for the temperature control timer are essential (The fundamental set-
tings such as temperature range, temperature coefficient, etc. are made before). Make
the settings in the sequence specified here.
Menu number in the configuration
menu
Setting
401 (timer) ON
402 (cooling mode) Absolute
404 (beginning of sealing time) When temperature reached
407 (function of relayK1) When temperature reached
101 (sealing temperature) 180°C
403 (start delay) 0.0 sec
104 (sealing time) 1.0 sec
105 (cooling temperature) Cooling temperature = 80°C
8.6.7.2 Triggering via external switch
This section describes the fundamental constellation of a pneumatically driven film
sealing device with a solenoid valve. A sealing process is triggered via an external
switch. The START signal is triggered by the heat-sealing band.