Startup and operation
RES-430
21
These two alternatives are shown below:
9.3.7
Relay K1 / solenoid drive (optional)
The function of relay K1 (or the optional solenoid drive)
is specified with step 212 in the Configuration menu.
The settings can be selected as follows (as of software
revision 007):
1.
"When start signal present" (Factory setting)
The normally open contact of relay K1 (or the sole-
noid drive) closes as soon as the "START" signal is
activated and remains closed until the end of the
parameterized timeout (i.e. until the end of the coo-
ling phase).
2.
"When temperature reached"
The normally open contact of relay K1 (or the sole-
noid drive) closes when the ACTUAL temperature
reaches 95% of the SET temperature and remains
closed until the end of the parameterized timeout
(i.e. until the end of the cooling phase).
3.
"While cooling"
The normally open contact of relay K1 (or the sole-
noid drive) closes at the end of the heating phase
and opens again at the end of the cooling phase.
This configuration permits air cooling to be activated
with relay K1 (or the solenoid drive) during the coo-
ling phase, for instance.
4.
"End-of-cycle impulse"
The normally open contact of relay K1 (or the sole-
noid drive) closes at the end of the parameterized
timeout (i.e. at the end of the cooling phase) and
opens again after approximately 500ms. If a
"START" signal is activated while relay K1 is still
closed (or the solenoid drive is active), the relay
opens again immediately.
5.
"OFF"
Relay K1 (or the solenoid drive) is deenergized, i.e.
it has no function.
As of software revision 008, relay K1 (or the
solenoid drive) cannot be re-energized for
200ms after the end of the parameterized cooling
phase, in order to prevent bouncing or oscillation
of the driven closing movement.
ACTUAL
temp.
START
signal
ON
T
t
t
0
0
95% of set point
When
heating
t
0
Start of
heatsealing time
starts
When
temperature
t
0
reached
Heatsealing time
Heatsealing time
!
