Startup and operation
RES-430
Page 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 SW
revision 007):
1.
"When start signal present"
(•)
The normally open contact of relay K1 (or the
solenoid 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
cooling phase).
2.
"When temperature reached"
The normally open contact of relay K1 (or the
solenoid 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
solenoid 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
cooling phase, for instance.
4.
"End-of-cycle impulse"
The normally open contact of relay K1 (or the
solenoid 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 SW 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.
(•) Factory setting
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
!
