6.WEIGHING MODE SETTING AND OPERATION
64
（
1
）
Toggling of Lower limit signal (8th bit of n+5 CH) opens the raw material
tank, starting to feed the metering tank.
（
2
）
When the metering tank is fully packed with raw material, Upper limit signal
(9th bit of n+5 CH) changes and the valve closes.
（
3
）
ON edge (0
→
1) initiates tare subtraction (0th bit of n CH) zero-clearing Net
weight.
（
4
）
Discharge starts with all valves full open. When the weight reaches (Final-
SP1), SP1 signal turns ON (9th bit of n+3 CH) and the Comparison inhibit
time starts (if enabled). Travel of the raw material tank valve changes from
“large” to “medium”.
（
5
）
When the weight reaches (Final – SP2), SP2 signal turns ON (10th bit of n+3
CH) and the Comparison inhibit time starts (if enabled). Travel of the raw
material tank valve changes from “medium” to “small”.
（
6
）
When the weight reaches (Final – FF CPS.), SP3 signal turns ON (11th bit of
n+3 CH) and the Compare time starts (if enabled). Feed valve is totally
closed.
（
7
）
When the Compare time expires, Over/Under judgment is made. If the weight
exceeds the range of Over/Under set values, Over (15th bit of n+3 Ch) or
Under (13th bit of n+3 CH) signal is raised.
Repeat steps (1) to (5) for the next container.
（
8
）
When raw material in the metering tank decreases to the Lower limit, Lower
limit signal (8th bit of n+5 CH) turns ON, opening the raw material tank
valve to replenish metering tank.
Use CJ1 or appropriate relay sequencers to open/close the Feed/
Discharge valves, and these sequencers are controlled by F159.
