13 - 12
13. POSITIONING MODE
(3) Output signals
Signal
Symbol
Connector
pin No.
Functions/Applications
I/O
division
Positioning
mode
CP
CL
Encoder
Z-phase pulse
(Open
collector)
OP
CN1-21
Outputs the zero-point signal of the encoder. One pulse is output per
servo motor revolution. OP turns on when the zero-point position is
reached. (Negative logic)
The minimum pulse width is about 400
μs. For home position return
using this pulse, set the creep speed to 100r/min. or less.
DO-2
Encoder
A-phase pulse
(Differential
line driver)
LA
LAR
CN1-15
CN1-16
Outputs pulses per servo motor revolution set in parameter No. PA15
in the differential line driver system.
In CCW rotation of the servo motor, the encoder B-phase pulse lags
the encoder A-phase pulse by a phase angle of /2.
The relationships between rotation direction and phase difference of
the A- and B-phase pulses can be changed using parameter No.
PC13.
DO-2
Encoder
B-phase pulse
(Differential
line driver)
LB
LBR
CN1-17
CN1-18
Encoder
Z-phase pulse
(Differential
line driver)
LZ
LZR
CN1-19
CN1-20
The same signal as OP is output in the differential line driver system.
DO-2
(4) Power supply
Signal
Symbol
Connector
pin No.
Functions/Applications
I/O
division
Positioning
mode
CP
CL
Digital I/F
power supply
input
DICOM
CN1-1
Used to input 24VDC (24VDC±10% 200mA) for I/O interface.
The power supply capacity changes depending on the number of I/O
interface points to be used.
For a sink interface, connect the positive terminal of the 24VDC
external power supply to DICOM.
For a source interface, connect the negative terminal of the 24VDC
external power supply to DICOM.
Open collector
power input
OPC
CN1-2
When inputting a pulse train in the open-collector system, supply this
terminal with the positive (+) power of 24VDC.
Digital I/F
common
DOCOM
CN1-13
Common terminal for input signals such as SON and EM1. Separated
from LG.
For a sink interface, connect the negative terminal of the 24VDC
external power supply to DOCOM.
For a source interface, connect the positive terminal of the 24VDC
external power supply to DOCOM.
Control
common
LG
CN1-14
Common terminal for OP.
Shield
SD
Plate
Connect the external conductor of the shielded wire.