10
•
historical data as well as alarms are stored. It’s possible to select and export data based
on a specified time range
•
synchronous preheating of all the zones, regardless to the thermal inertia
•
regulating outputs offset to avoid absorption high current peaks
•
synoptic view allows to the operator to relate each zone to its physical position
•
events log allows to identify “who made what”
•
TEST environment helps to automatically validate electrical connections between
controller and mould
•
connection of the controller with the injection machine for the emergency
management (optional)
•
plastic leakage alarm
•
BOOST function
4.1
Drying
After a long period of no usage the heaters in the injection system could have absorbed
moisture. The insulating material of the heaters is highly hygroscopic and loses its properties.
The drying function with phase angle modulation allows to supply to all the elements and for a
certain duration (common parameter “Drying time”, Idx 11) at a reduced voltage (common
parameter “Drying voltage”, Idx 12). This allows the elimination of the humidity present without
forming dangerous electrical discharges towards ground.
Phase angle modulation causes major problems of electromagnetic compatibility. Whereby
we absolutely advise to protect the line with a power filter before the controller connection.
Table 2:
supply filters
Filter
Phase maximum current
Schaffner FN3280H-36-33
*
36
Schaffner FN3280H-64-34
*
64
Schaffner FN3280H-80-35
*
80
Schaffner FN3280H-120-35
*
120
* or equivalent
Note
: enable the drying function only if indispensable .
4.2
Auto-Tuning (Mould change)
In closed loop (mode AUTO) the power supplied on each heating element is calculated by the
controller according to the thermocouple feedback. During the Auto-Tuning phase the
controller performs a self calibration of its regulating parameters. This allows a perfect
behaviour, without overshoot in the phase of temperature rising and avoiding fluctuations
during the steady state.
We advice you to turn the Auto-Tuning function on (select the option
in Figure 11) at every mould change or at the first installation.
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