Panasonic FP-XH M8N16PD, User Manual

Page: 268 / 556

Pulse Input Function
15-4
15.1.3 Input mode of pulse input
• You can select from the following 3 modes depending on the input device to be connected.
• The counting operation changes according to the settings of multiplier as shown in the
following page.

Input mode
Mode Connection Counting
2-phase
(phase
difference)
单元
Input A
Input C
Input B Relative value encoder
Pulse input of phase A
Pulse input of phase B
Pulse input of phase
Z (reset input)
Unit
Input A
Input C
Input B
Incremental
encoder
Pulse input of
phase A
Pulse input of
phase B
Pulse input of phase
Z (reset input)

The 2-phase input connects the
input A signal and input B signal of
each counter to the input A signal
and input B signal of corresponding
encoder.

The counting direction depends on
the phase difference between Phase
A and Phase B. If Phase A leads over
Phase B (electronic angle at 90°),
add the counted value; and if Phase
A lags behind Phase B (electronic
angle at 90°), subtract the counted
value.
Direction
detection
Input A
Input A
Incremental
encoder or pulse
generator
Pulse input
Counting direction
Sensor
or
switch
Unit

During direction detection input,
counting signal is connected with
input A signal. The counting direction
is controlled by the level of the
direction signal of input B signal.

If input B signal is turned OFF, the
counter will perform addition
operation when input A signal is on
the rising edge or falling edge, and
perform subtraction operation when
input B is on the rising edge or falling
edge.
Individual
Unit
Input A
Input B
Incremental
encoder or pulse
generator
Addition pulse input
Subtraction pulse input
Incremental
encoder or pulse
generator

For individual input, the counter will
perform addition operation when
input A signal is on the rising edge or
falling edge and subtraction operation
when input B is on the rising edge or
falling edge.