57
Use Pulse Output Function (Frequency
Change)
Overview
Sending pulse output in direction control mode. Turn ON Enable input
at R4.0 and Start input. Pulse output starts at R2.8 and R2.9 (PLS0).
When direction input to R4.2 is ON, pulse changes to reverse. If speed
change input is ON at R4.3, output pulse frequency changes.
Timing Diagram
Pulse output changes in reference to the input status of each signal as
illustrated below.
Enable input (PLS0)
Start input (PLS0)
Pulse train output
0V (24V DC)
Install Pulse I/O unit in slot No. 0
R0
R1
R2
R3
Occupied I/O areas
Direction input (PLS0)
Direction signal
(PLS0 direction)
32 points input unit
R4
R5
Enable signal
(PLS0 Enable)
Start signal
(PLS0 start)
Pulse output (PLS0 A)
Direction control signal output
Pulse output (PLS0 B)
Speed change input
PLS0 Enable signal
(R4.0, R3.8)
Output of forward pulse
PLS0 Start signal
(R4.1, R3.12)
PLS0 Direction
signal (R4.2, R2.0)
Speed change input
(R4.3)
PLS0 A Pulse
output (R2.8)
Output of reverse pulse
Pulse output starts when edge rise of Start signal is
detected while Enable signal is ON.
When direction changes,
1 pulse is deleted.
PLS0 B Direction
control signal (R2.9)
Speed changes
Speed changeas