Startup and operation
Page 32
RES-430
Version 1
Load cell interface for force measurement active, temperature sensor not active
3.
"Temperature"
Temperature sensor active, load cell interface not active
4.
"Temperature and force"
Load cell interface for force measurement and temperature sensor active
The menu steps 242 to 246 described below are accessible if step 241 is set accordingly.
9.5.2
Force diagnosis
The RES-430 checks during the heatsealing phase (assuming this has been activated with step 241) whether the
measured force of the connected load cell is inside a settable tolerance band ("OK window"). The upper and lower
limit values can be changed separately by means of steps 242+243 in the Configuration menu.
If the measured force is outside the specified tolerance during the parameterized monitoring time, the heatsealing
cycle is immediately interrupted and an alarm (error code 817, 818) is indicated on the display.
This monitoring function serves, among other things, to ensure a constant closing force of the sealing jaws.
Up to software revision 007:
The force diagnosis begins 100ms after the ACTUAL temperature reaches 95% of the SET temperature and con-
tinues until the end of the parameterized cooling phase.
As of software revision 008:
The force diagnosis function can be additionally parameterized by means of step 247 in the configuration menu.
The following settings are possible:
1.
"OFF" (Factory setting)
Force diagnosis deactivated
2.
"Active during heatsealing cycle"
The force diagnosis is permanently active during the heatsealing phase until the end of the parameterized
cooling phase. If this setting is activated, an additional delay time between 0 and 9.9s can be parameterized
with step 248 in the Configuration menu. This delay time starts when the ACTUAL temperature reaches 95%
of the SET temperature. The force diagnosis function is activated as soon as the delay time elapses.
The force diagnosis function can thus be explicitly deactivated during the closing movement of the sealing jaws,
for instance.
3.
"End of heating phase"
A single force diagnosis takes place at the end of the heatsealing phase.
4.
"End of cooling phase"
A single force diagnosis takes place at the end of the cooling phase.
!
RES-430
22
Load
cell
0V
25
+5V
23
24
Signal
+
-
-Vcc
+Vcc
