Omron CJ - 08-2008 - Page 642

594
CJ1M CPU Unit Built-in I/O Specifications Appendix B
High-speed Counter Inputs (IN6 to IN9)
24-V DC Input Line Driver Input
When 60 kHz is set.
When 100 kHz is set. Count operation cannot be assured above
60 kHz.
ON
50%
OFF
ON
50%
OFF
ON
50%
OFF
T1 T2 T3 T4
16.6 µs min.
8.3 µs min. 8.3 µs min.
3 µs max. 3 µs max.
33.3 µs min.
T1, T2, T3, and T4: 4.0 µs min.
Phase-A/Phase-B encoder input, Single-phase
60-kHz pulse input with 50% duty ratio
Rise time and fall time: 3.0 µ s max.
Phase-A/Phase-B encoder input, Differential-
phase 30-kHz pulse input
Maintain a spacing of 4.0 µs min.
between phase-A/phase-B transitions
ON
50%
OFF
ON
50%
OFF
ON
50%
OFF
T1 T2 T3 T4
16.6 µs min.
8.3 µs min. 8.3 µs min.
33.3 µs min.
T1, T2, T3, and T4: 4.0 µs min.
Phase-A/Phase-B encoder input, Single-phase
60-kHz pulse input with 50% duty ratio
Phase-A/Phase-B encoder input, Differential-
phase 50-kHz pulse input
Maintain a spacing of 4.0 µs min.
between phase-A/phase-B transitions
ON
50%
OFF
ON
50%
OFF
T1 T2 T3 T4
ON
50%
OFF
10.0 µs min.
5.0 µs min. 5.0 µs min.
20.0 µs min.
T1, T2, T3, and T4: 2.5 µs min.
Single-phase 100-kHz pulse input with
50% duty ratio
Differential-phase 50-kHz pulse input
Maintain a spacing of 2.5 µs min. between Phase
A/Phase B transitions
ON
50%
OFF
Phase-Z encoder input (IN2 and IN3)
Maintain an ON time of 30 µs min.
and an OFF time of 150 µs min.
30 µs min.
150 µs min.
30 µs min. 150 µs min.
Phase-Z encoder input (IN2 and IN3)
Maintain an ON time of 30 µs min.
and an OFF time of 150 µs min.
ON
50%
OFF