Ropex RES-445 - Page 57

Controller functions
RES-445 Page 57
6. "Active if Tact = Tset"
(This setting is possible as of software
revision 100)
Relay K1 is activated if the actual value is inside the
specified temperature tolerance band (steps 207,
208). If the actual temperature is outside the toler-
ance band, relay K1 is deactivated (see graph
below).
7. "Active if Tact = Tset", with latch function
(This setting is possible as of software
revision 100)
Relay K1 is closed if the actual value is inside the
specified temperature tolerance band (steps 207,
208). If the actual temperature leaves the tolerance
band once
during the heatsealing phase, relay K1 is
opened. The relay is not closed again until the next
"START" signal is activated. The switching state of
relay K1 can thus also be interrogated by the higher-
level PLC after a heatsealing process (latch func-
tion, see graph below).
10.24.8 “Output 1“/
„Temperature OK“ signal
(with time control)
On controllers up to software revision 027,
the switching output at terminals 20+21 was
called "Temperature OK". The more general name
"Output 1" is used as of software revision 100
because this output now also supports other func-
tions.
The "Output 1" signal is available at terminals 20+21 as
a digital control signal.
Up to software revision 027:
The switching output at terminals 20+21
("Temperature OK" signal) always has the function
"Active if Tact = Tset" ( section 9.3.9 "“Output 1“/
„Temperature OK“ signal (without time control)" on
page 23).
As of software revision 100:
If time control (timer function) is active, the switching
output at terminals 20+21 ("Output 1") can be parame-
terized in the same way as relay K1. The options for
"Output 1" are specified with step 222 in the Configura-
tion menu as followed:
1. "Off"
2. "When start signal present"
3. "When temperature reached"
4. "While cooling"
5. "End-of-cycle impulse"
6. "Active if Tact = Tset"
7. "Active if Tact = Tset", with latch function
(factory setting)
For a detailed description of these functions, see
section 10.24.7 "Relay K1 (with time control)" on
page 56.
Set
NO contact of
Setl+

lower
Set+

upper
Actual value
Time
Time
Open
Closed
Relay K1
Set
NO contact of
Set+

lower
Set+

upper
Actual value
Time
Time
Open
Closed
Relay K1
!
RES-445
+24VDC
21
I
max
50mA
20
GND
GND