Controller functions
Page 36
RES-420
independently of the "START" signal by pressing the
"ENTER" key ("HAND" function) while the main menu
is displayed.
The "START" signal can be activated in two ways:
• By means of a 24VDC signal at terminals 3+4.
• By means of a control contact at terminals 2+7
The "START" signal is disabled as long as the
AUTOCAL function is executing in the Set-
tings menu (with step 107 [3]).
The set point that is selected for the heatsealing tempe-
rature (step 101 [1] in the Settings menu) must be
greater than 40°C. If not, the heatsealing band will not
be heated up.
The alarm relay is switched if the "START" signal is
activated while an error message is indicating error
codes 104…105, 111…113 or 211 (
"Fault areas and causes" on page 44). The heatsealing
band is likewise not heated.
10.11 Cycle counter
Each activation of the "START" signal during operation
is detected by a cycle counter integrated in the con-
troller. Actuations of the "HAND" key are not counted.
The counter reading can be displayed with
step 214 [24] 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.
10.12 Hold mode
The behavior of the digital indication of the ACTUAL
temperature in the home position can be changed with
step 106 [2] in the Settings menu. The following set-
tings are possible:
1.
"OFF" (Factory setting)
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.
Hold mode only affects the digital value on
the display. The ACTUAL temperature in real
time is always indicated, regardless of the setting,
by the dynamic bar.
RES-420
max. 6mA
3
4
START
(HEAT)
+
-
GND
24VDC
START (HEAT)
HIGH:
12VDC
LOW:
2VDC
RES-420
7
START
(HEAT)
with
contact
0V
2
max.
5mA
!
!
