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3
System Configuration
Section 1-2
• Up and down pulse inputs
• Pulse and direction inputs
The High-speed Counter Unit has a function to multiply offset phase inputs by
two or four. The resolution of the High-speed Counter Unit can be increased in
proportion to the number of pulses input from encoders.
Change Present and Set
Values During High-speed
Counter Unit Operation
The High-speed Counter Unit in normal operation uses settings that are read
when the High-speed Counter Unit is turned ON. The settings, which include
the present counter values of the High-speed Counter Unit, can be changed
anytime.
1-2
System Configuration
Discriminating Product
Sizes
In the following example, the size of each product on the belt conveyor is mea-
sured and improper-sized products are removed from the line using the sole-
noid.
The High-speed Counter Unit counts the number of pulses that is input from
the encoder while each product is passing between the emitter and receiver of
the through-beam photoelectric sensor.
When the count value of a product is not within the range preset with the
High-speed Counter Unit, the solenoid will be activated and the product will be
removed from the line.
C200H-OA221
AC Output Unit
C200H-CT021
High-speed Counter Unit
Solenoid:
Used to remove
improper-sized
products.
Through-beam
Photoelectric Sensor:
Used to sense the
products.
Incremental Encoder:
Used to sense the speed
of the belt conveyor.
Motor
Belt conveyor
C200HX
Incremental
encoder output
Photoelectric
sensor output
Count value
Discrimination
criteria
Reject
OK
Reject
Содержание C200H-CT021
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