Hardware reference
HARDWARE REFERENCE MANUAL
273
Revision 5.0
3.13.11 Registration
The TJ2-KS02 can capture the position of an axis in a register when an
event occurs. The event is called the print registration input. On the rising or
falling edge of an input signal (either the Z marker or one of the inputs), the
TJ2-KS02 captures the position of the encoder axis in hardware. You can
use this position to correct possible errors between the actual position and
the desired position. You set up the print registration with the
REGIST
command.
The position is captured in hardware and therefore there is no software
overhead. This eliminates the need to deal with timing issues.
Because the registration inputs are very fast, they are susceptible to noise in
combination with slow rising and falling edges. To counter this problem, you
can use a digital noise filter. Use of the noise filter increases the response
time from 0.5
μ
s to 3.5
μ
s.
We refer to the
REGIST
command in the Trajexia Programming Manual for
more information on using the registration inputs.
3.13.12 TJ2-KS02 box contents
•
Safety sheet.
•
TJ2-KS02.
•
Protection label attached to the top surface of the unit.
•
Parts for a 4-pin connector.
•
Parts for a 9-pin connector.
Note
The TJ2-KS02 supports registration with both incremental and
absolute encoders. In case of registration with an absolute
encoder, the captured position (
REG_POS
or
REG_POSB
) is
interpolated, using a time based counter which has a resolution of
100 ns.
