Controller functions
RES-445
Page 39
If the actual temperature is inside the specified
tolerance band, the output at terminals 20+21 is
switched (see graph below):
The "Temperature OK" signal is available at terminals
20+21 as a digital control signal.
The ACTUAL temperature is evaluated, and
the output signal at terminals 20+21
activated, in all operating states except when an
alarm is signaled.
If time control is deactivated, relay K1 can also be
switched simultaneously with this signal. This permits
loads with higher currents to be controlled
(
!
Kap. 9.3.6 „Relay K1 (without time control)“ auf
10.13
Cycle counter
Each activation of the "START" signal during operation
is detected by a cycle counter integrated in the
controller. Actuations of the "HAND" key are not
counted. The counter reading can be displayed with
step 30 in the Configuration menu:
The cycle counter is reset to 0 if the "ENTER" key is
pressed or if the maximum count of 999.999.999 cycles
is exceeded.
10.14
Hold mode
The behavior of the digital indication of the ACTUAL
temperature in the home position can be changed with
step 6 in the Settings menu:
The following settings are possible:
1.
"OFF"
(•)
If the main menu is visible on the display, the real
ACTUAL temperature is always indicated.
2.
"ON"
If the display is in the home position, the ACTUAL
temperature that was valid at the end of the last
heatsealing phase is always indicated as a digital
value. When the controller is switched on, the real
ACTUAL temperature is indicated until the end of
the first heating phase.
3.
"2 s"
(Software revision 005 or higher)
It causes the current ACTUAL temperature to be
displayed as a digital value for an additional
2 seconds at the end of a heatsealing phase. This
temperature is then indicated again in real time until
the end of the next heating phase.
Set
Output
Set+
∆ϑ
lower
Set+
∆ϑ
upper
Actual value
Time
Time
Not conduct.
Conductive
Terminals 20+21
RES-445
+24VDC
21
I
max
50mA
20
GND
GND
!
(•) Factory setting
