Conair TrueFeed User Manual page 33

Output signals
During fill time there will be a 24VDC signal between connections 24 and 25 on the main board to activate the
pneumatic solenoid valve.
When the Fill Alarm is activated the controller itself activates an audible beeping signal and the alarm strobe
flashes.
GENERAL RECOMMENDATIONS FOR OPTIMAL HOPPER FILLING
To guarantee the optimal working capacity of the gravimetric TrueFeed feeding unit it is important to use the
correct rate of hopper filling. The higher the output of the feeding unit (kg/h), the more important the rate of
hopper filling.
During hopper filling, the electronics of the TrueFeed controller recognizes automatically that the hopper is
being filled. This automatic filling detection will work for the manual filling of the hopper and the filling with an
automatic hopper loader.
During the time that the hopper is being filled, the TrueFeed is feeding with a fixed RPM, this means that the
unit runs temporarily volumetric. As soon as the hopper filled, the TrueFeed immediately resumes to work
gravimetric.
Because the TrueFeed is working volumetric during a hopper filling it is recommended to reduce the amount of
filling cycles, by increasing the time between filling cycles. This can be performed when using the correct
settings of the "Filling start level" and the "Filling stop level".
Filling start level
The moment when the automatic filling starts depends on
the entered start level:
Filling start: xxx gr.
Sight glasses
(Configuration menu)
Filling stop level
Filling stop level is dependant on the entered fill time
for the ME-system:
Fill time: xxx sec
For the MV-system:
Fill time: xxx sec
Empty time: xx sec
Fill cycle: .... x
(Hopper loader menu)
29 Dual Feed TrueFeed Manual