CP1W-20EDT Omron, CP1W-20EDT Datasheet - Page 8

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CP1W-20EDT

Manufacturer Part Number
CP1W-20EDT
Description
Expansion 12 In, 8 Out NPN
Manufacturer
Omron
Datasheet

Specifications of CP1W-20EDT

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
14
High-speed Counters
Differential Phases for Up to Four Axes Are Standard.
Easily Handles Multi-axis Control with a Single Unit.
Applicable CPU Units and Functions
CP1H-Y CPU Unit
Main-axis Control for Equipment Such as
Textile Machinery or Spinning Machinery
1 MHz (single-phase), 500 kHz
(differential phases) for two axes,
100 kHz (single-phase), 50 kHz
(differential phases) for two axes
(four axes total)
CP1H
CPU Unit
Example: Main-axis Control for
Equipment Such as Spinning
Machines
Multi-axis counter inputs enable calculations for inverter positioning, spindle speed control in
textile manufacturing, and much more.
Four-axis Counter Function (Single-phase or Differential Phases)
RS-485
High-speed counters
Positioning Conveyance for Equipment Such as Building
Material Manufacturing Machinery and Stone-cutting Machinery
CP1H-X
100 kHz (single-phase),
50 kHz (differential phases)
for four axes
Inverters
CPU Unit
CP1L CPU Unit
100 kHz (single-phase) for
four axes, or 50 kHZ (differential
phases) for two axes
The CP1L's built-in error counter function enables the following operation.
1
2
3
Inverter Positioning
High-speed Positioning
Operations Using Inverters Is Made Easy.
CP1L CPU Unit
Overview of Inverter Positioning
1
Inverter speed
Run/stop
command
Low speed
command
Machinery Such As Ceramics Conveyor Equipment
Positioning commands are executed by means of pulse output
instructions. Pulse output instructions normally output pulses from the
PLC, but pulses can be output to the error counter according to the
operand setting in the instruction (such as PLS2).
The amount of pulses input to the error counter is converted to a speed
command and output to the inverter. A command to the inverter is created
in the ladder program using this speed command (proportional to the
pulses remaining in the error counter). When RS-485 communications are
executed, ladder programming for communicating with the inverter is
created. When analog outputs are executed, ladder programming for
analog outputs is created.
When a run/stop command is executed for the inverter, the motor is
rotated and feedback pulses (for the amount of movement) are output from
the encoder to the CP1L. The error counter value is decremented by these
feedback pulses. The CP1L continues sending commands to the inverter
until positioning is completed. This enables accurate positioning to the
position output by the first position command.
Previously
Positioning
command
High-speed counter
Calculations are made in
the ladder program based
on high-speed counter
values.
To avoid position error, positioning
must be stopped from a low speed.
Positioning becomes unreliable if
stopped from a high speed.
The deceleration position must
be calculated from the stop
position and the speed.
Error counter
I/O
Rotary
encoder
Inverter
General-
purpose
motor
2
Ladder program
3
Feedback pulses
Inverter speed
(command sent
via RS-485)
Example: Machinery Such As Ceramics
CP1L
Now
RS-485/analog output
Even without going to low speed,
positioning is accurate!
With no need for low speed,
positioning is faster!
High-speed counter
Applicable CPU Units and Functions
Conveyor Equipment
RS-485
Operation is simplified, with no
need to calculate the deceleration
position!
CP1L CPU Unit
Inverter positioning function
for two axes
Rotary
encoder
High-speed Counters
Inverter
Inverter Positioning
Rotary
encoder
General-
purpose
motor
Inverter
General-
purpose
motor
15

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