Omron CJ2M-CPU Series User Manual

3-3
3 I/O Specifications and Wiring for Pulse I/O Modules
CJ2M CPU Unit Pulse I/O Module User’s Manual
3-1 I/O Specifications
3
3-1-1 Input Specifications
z High-speed Counter Input Specifications (IN06 to IN09 and IN16 to IN19)
Additional Information
For the counter inputs, it is necessary to check the factors that can affect the pulses, such as the type of output driver
in the encoder, cable length, and count pulse frequency. When counting pulses that exceed 60 kHz, we recommend
using an encoder with a line-driver output. To ensure that pulses can be counted stably, use a shielded twisted-pair
cable and keep the cable to 3 m or less in length.
24-VDC input Line driver input
Set to
60 kHz
Set to
100 kHz
Phase
Z/reset
input
50%
OFF
ON
T1 T 2
50%
OFF
ON
50%
OFF
ON
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, 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 µs max.
Phase-A/Phase-B encoder inputs, Differential
phases, 30 kHz
Changes in phases A and B must be
separated by at least 4.0 µs.
50%
OFF
ON
T1 T 2
50%
OFF
ON
50%
OFF
ON
T3 T4
16.6 µs min.
8.3 µs min.
8.3 µs min.
33.3 µs min.
T1, T2, T3, T4: 4.0 µs min.
Encoder input phase A or B, single-phase
60-kHz pulse input with 50% duty ratio
Phase-A/Phase-B encoder inputs, Differential
phases, 30 kHz
Changes in phases A and B must be separated by at least
4.0 µs.
50%
OFF
ON
T1 T 2
50%
OFF
ON
50%
OFF
ON
T3 T4
10.0 µs min.
5.0 µs min.
5.0 µs min.
2.5 µs max. 2.5 µs max.
20.0 µs min.
T1, T2, T3, T4: 2.5 µs min.
Phase-A/Phase-B encoder input, Single-phase
100-kHz pulse input with 50% duty ratio
Rise time and fall time: 2.5 µs max.
Phase-A/Phase-B encoder inputs, Differential
phases, 50 kHz
Changes in phases A and B must be
separated by at least 2.5 µs.
50%
OFF
ON
T1 T 2
50%
OFF
ON
50%
OFF
ON
T3 T4
10.0 µs min.
5.0 µs min.
5.0 µs min.
20.0 µs min.
T1, T2, T3, T4: 2.5 µs min.
Single-phase 100-kHz pulse input with
50% duty ratio
Differential-phase 50-kHz pulse input
Changes in phases A and B must be separated
by at least 2.5 µs.
50%
OFF
ON
30 µs min.
150 µs min.
Encoder input phase Z (IN02/IN03 or IN12/IN13)
Maintain an ON time of 30 µs min.
and an OFF time of 150 µs min.
50%
OFF
ON
30 µs min. 150 µs min.
Encoder input phase Z (IN02/IN03 or IN12/IN13)
Maintain an ON time of 30 µs min.
and an OFF time of 150 µs min.

Omron CJ2M-CPU Series Specifications

General

Brand	Omron
Model	CJ2M-CPU Series
Category	Controller
Language	English