6 FUNCTIONS OF THE OPERATION SCREENS CCW-R-2**B INSTRUCTION MANUAL
6-104
6.13.2 AFD Ctroll Mode
<Function>
This function selects the control method for feeder amplitude, time and dispersion weight. The following
8 modes of control method are available. By referring to the descriptions for each mode mentioned
below, select the mode depending on the product characteristics, product infeed status and speed.
• Items indicated by blank in the list above are controlled manually.
<For better utilization>
For better utilization of the auto control to realize more stable production, note the following points:
Table 6-47 Parameters for Auto Control of Each Feeder
Control
Parameter
RF Time RF AMP DF Time DF AMP DF
Weight
Mode
Manual [Manual]
Auto Per head Selectable [Efficiency Ref. Control]
[Auto Multi Control]
[Auto Time Multi Control]
[Auto AMP Multi Control]
All heads [Auto Single Control]
[Auto Time Single Control]
[Auto AMP Single Control]
Table 6-48 Notes on Auto Control
Keyword Points
Preceding infeed status Stable preceding infeed status is required. In particular, when infeed amount changes
drastically, using the auto control may lower the efficiency in some cases. In this case, select
the manual mode.
Dispersion of products It is important that products are delivered as evenly as possible with no omissions from the
dispersion feeder to each radial feeder. Adjust the position of the infeeder, feed speed, position
of inlet chute, etc., so that products fall onto the center of the dispersion feeder from the
infeeder and are dispersed as evenly as possible. During feeder parameter setting operations,
or when starting production or production operation is unstable, check the flow of the products
on the dispersion feeder visually or with a dispersion camera (optional). When there is a
problem, take corrective measures such as adjustment of the position of the infeeder.
Operating head count It is required that all heads are ready to operate. If not, the problem has to be solved.
Stable head count When stable heads required for combination are inadequate due to floor vibration or other
causes, the auto control may not work efficiently. In such cases, it is important to have
adequate stable heads based on review of speed and filter selection.
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