User guide

TrueFeed manual
18
Manual:
Fill in the voltage the tachometer produced by the tachometer generator at maximum extruder speed.
Automatic:
Let the extruder run and select Set tachometer: YES.
The tachometer voltage (P1) will be taken over automatically and is linked to the set motor speed (P2) (in RPM
mode) or calculated motor speed (in GRAVI mode)
During production, the motor speed (P2) can be changed. The new speed is linked to the previous stored
voltage and the graph will change accordingly.
During production, the voltage (P1) can be adjusted to the current tachometer input voltage (manually or
automatically) as shown above. The new voltage is linked to the previous stored speed and the graph will
change accordingly.
-The maximum voltage that can be applied to the TrueFeed is 30 VDC.
-The tachometer signal must be a clear signal. Any failure in the voltage signal will result in feeding variations.
CONFIGURATIONS: Fill. System
Filling system, NO (None), ME, MV or EX (See Chapter 7.10)
CONFIGURATIONS: Filling start
Function: When the control detects that the hopper is running empty, the filling system is activated.
The filling system will start loading when the weight in the hopper is 1.7 lb {800 g} (default) or less.
The default value can be changed manually if necessary (depending on the material properties).
Also with an EX hopper selected, this is the weight level for opening the knife gate valve to fill
the hopper.

Only visible when a filling system is installed and selected.
CONFIGURATIONS: EX-H level
The filling knife gate valve will close if the weight in the hopper is 5.5 lb {2500 g} (default) or more.

Only visible if EX (External / foreign) hopper loader is installed and selected.
CONFIGURATIONS: EX-HH level
HH level is High level warning. If the weight in the hopper reaches 6.6 lb {3000 g} (default) or more a warning
will activate.

Only visible if EX (External / foreign) hopper loader is installed and selected.
CONFIGURATIONS: Hopper empty
The system will display a “Low hopper level” message if there is less then 1.5 lb {700 g} (default) of material in
the hopper. For this system to work correctly it is required that a load cell calibration is performed with an
empty hopper and the hopper lid in place. This system will always be active.
The default value can be changed manually if necessary (depending on the material properties).
See Chapter 7.12 for instructions on how to set this message to alarm or warning.
CONFIGURATIONS: Deviation alarm
Setting for the “Maximum deviation exceeded” message.
The TrueFeed automatically adjusts its motor speed to the desired setpoint. The control is able to detect and
alarm when the setpoint is not reached within a set percentage. If after the normal performed speed
adjustments, the setpoint is consistently not reached, the control will activate an alarm signal and a message
will be displayed in the TrueFeed’s control.