30
5
FUNCTIONS
30
FUNCTIONS
Chapter
5
(3) When the weighed value reaches (Final - Set Point 2), SP2 output signal turns ON. (If the
comparison inhibit time is set, the timer starts.) After the timer expires, SP2 valve of the
material tank is closed to “SP3”.
(4) When the weighed value reaches (Final - Compensation), SP3 output signal turns ON, and if
the judging time is set, the timer starts. The feeding valves are completely closed.
(5) After the judging time expires, Over/Under judgment is made. If the weighed value exceeds the
range of the Over/Under set value, the over signal or under signal turns ON.
(6) Raw materials are discharged from the weighing tank to a container. The valves of the
weighing tank should be opened. Completion of discharge is confirmed with the Near Zero
signal. In weighing from the second time onward, (1) to (5) are repeated.
Example) In the case when comparing Final, Over/Under, and Near Zero comparison with
Net weight.
The feeding valves and discharge valves should be opened and closed through
the PLC or relay sequence according to the control signals from the F160.
Point
0
Near Zero
Final – Set Point 1
Final – Set Point 2
Final – Compensation
Final
Net weight
Over
Under
Time
Tare Subtraction
SP1
SP2
SP3
Comparison
Judging Time
Near Zero
Judgment
(Go, Over or Under)
Inhibit Time
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
