Startup and operation
UPT-640 (as of SW 100)
19
8.3.7
Relay K1 (without time control)
The function of relay K1 is specified with step 212 in the
Configuration menu. The following settings are pos-
sible when time control is deactivated:
1.
"Off" (Factory setting)
Relay K1 has no function
2.
"Active if Tact = Tset"
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).
3.
"Active if Tact = Tset", with latch function
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 while the "START" signal is active, 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 function, see graph below).
Other settings are available in this menu when time
control (timer function) is active. They are described in
section 9.23.6 "Relay K1 (with time control)" on
page 41.
8.3.8
“Output 1“/
„Temperature OK“ signal
(without time control)
On controllers up to software revision 022,
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.
If time control (timer function) is deactivated, the same
configuration options are available for "Output 1" as for
relay K1 (
section 8.3.7 "Relay K1 (without time con-
trol)" on page 19). The options for "Output 1" are speci-
fied with step 222 in the Configuration menu as fol-
lowed:
1.
"Off"
"Output 1" has no function
2.
"Active if Tact = Tset"
Output 1 is conductive if the actual value is inside
the specified temperature tolerance band
(steps 207, 208). If the actual temperature is outside
the tolerance band, "Output 1" is not conductive.
This function is the same as for the
"Temperature OK" signal up to software
revision 022.
Set
Output
Set+
Δϑ
lower
Set+
Δϑ
upper
Actual value
Time
Time
open
closed
Relay K1
Set
NO contact of
Set+
Δϑ
lower
Set+
Δϑ
upper
Actual value
Time
Time
Open
Closed
Relay K1
!
UPT-640
+24VDC
21
I
max
50mA
20
GND
GND
