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The pre-reading start function is effective for the system as shown below.
Cutter
The figure above shows an example of the system which repeats:
1.
Feeding a stock with a feed shaft (); and
2.
Cutting it with a cutter ()
to cut the stock to fixed size. The operations of the feed shaft and cutter shaft are represented as shown in the
figure below.
V
Feed shaft
Start
time
Ts
Cutter shaft
Feed shaft
start request
Cutter shaft
start request
Cutter shaft
Feed shaft
Stop time
Tw
Start
time
Ts
Ò
CHAPTER 12 CONTROL SUB FUNCTIONS
Stock
Start
time
Ts
Ó
12
t
t
599
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Troubleshooting
