Omron CK3M Seres Hardware User Manual page 127

The CK3W-GC Unit captures a command position at the falling edge of an interpolation clock, and
sends that command position in an XY2-100 transmission cycle at the rising edge of the
interpolation clock after next.
As the XY2-100 data between interpolation clocks, the value calculated by linear interpolation is
sent.
You can match the command position from the CPU Unit with the shape of XY2-100 data by using
this mode.
Interpolation clock
XY2-100 data
*1. ClockSel = 0: Servo clock
ClockSel = 1: Phase clock
*2. Command position writing from CPU Unit
*3. Command position capturing by CK3W-GC Unit
*4. The command position captured by the CK3W-GC Unit becomes the XY2-100 transmission data at the
rising edge of the interpolation clock after next.
Precautions for Correct Use
When you set synchronous mode for linear interpolation of a command position, set a multiple
of 10 µs to the phase or servo cycle set for an interpolation clock.
If it is not set correctly, the Galvo Scanner may not operate as intended.
 Operation in Asynchronous Mode
You can set any value to the interpolation clock (Phase or Servo) period.
The CK3W-GC Unit captures a command position at the falling edge of an interpolation clock, and
sends that command position in an XY2-100 transmission cycle at the falling edge of the next inter-
polation clock.
As the XY2-100 data between interpolation clocks, the value calculated by linear interpolation is
sent.
In asynchronous mode, the interpolation may not be linear interpolation in calculation. If you always
need to use linear interpolation, use synchronous mode.
Although using this mode causes an error between the command position from the CPU Unit and
the shape of XY2-100 data, you can set any value to the phase or the servo cycle.
CK3M/CK5M Series Programmable Multi-Axis Controller Hardware User's Manual (O036)
*2 *3
*1
*2 *4 *2
3 Configuration Units
Command position captured by CK3W-GC
XY2-100 transmission data
*2
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3