Ropex RES-445 - Page 56

Controller functions
Page 56 RES-445
These two alternatives are shown below:
10.24.7 Relay K1 (with time control)
The function of relay K1 when time control is active is
also specified with step 212 [29] in the Configuration
menu ( section 9.3.8 "Relay K1 (without time con-
trol)" on page 22). The settings described here are only
possible if time control is active. These settings can be
selected as follows:
1. „OFF“
Relay K1 without function
2. "When start signal present"
The normally open contact of relay K1 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).
3. "When temperature reached"
(Factory setting)
The normally open contact of relay K1 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).
4. "While cooling"
(Software revision 010 or higher)
The normally open contact of relay K1 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 during the cooling phase, for instance.
5. "End-of-cycle impulse"
The normally open contact of relay K1 closes at the
end of the parameterized timeout (i.e. at the end of
the cooling phase) and opens again after approxi-
mately 500ms. If a "START" signal is activated while
relay K1 is still closed, the relay opens again imme-
diately.
The possible settings are shown below:
ACTUAL
temp.
START
signal
24VDC
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
ACTUAL
temperature
START
signal
24VDC
T
t
t
0
0
95% of set point
When start
signal present
t
0
Relay K1
When
temperature
t
0
reached
end of cooling
t
0
While
cooling
t
0
End-of-
cycle
impulse
500ms