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16. INDEXER POSITIONING OPERATION
(3) Output signals
Refer to section 4.8.2 for the output interfaces (symbols in the I/O Division field in the table) of the
corresponding connector pins.
Device Symbol
Connecto
r pin No.
Functions/Applications
I/O
division
Encoder A-phase pulse
(differential line driver)
LA
LAR
CN6-11
CN6-24
DO-2
Encoder B-phase pulse
(differential line driver)
LB
LBR
CN6-12
CN6-25
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.PC19
Encoder Z-phase pulse
(differential line driver)
LZ
LZR
CN6-13
CN6-26
Outputs the zero-point signal of the encoder in the differential line
driver system. One pulse is output per servo motor revolution. This
signal turns on when the zero-point position is reached. (Negative
logic)
The minimum pulse width is about 400
s. For home position return
using this pulse, set the creep speed to 100r/min. or less.
DO-2
(4) Power supply
Signal Symbol
Connector
pin No.
Functions/Applications
I/O
division
Digital I/F power supply
input
DICOM CN6-5
Used to input 24VDC (24VDC
10% 150mA) for I/O interface. The
power supply capacity changes depending on the number of I/O
interface points to be used.
Connect the plus of 24VDC terminal external power supply for the
sink interface.
Digital I/F common DOCOM CN6-17 Common terminal for input signals such as DOG and EMG. Pins are
connected internally. Separated from LG.
Connect the plus of 24VDC terminal external power supply for the
source interface.
MR-HDP01 open collector
power input
OPC CN6-18 Not used in indexer positioning operation.
Control common LG CN6-23 Common terminal for the differential line driver of the encoder pulses
(LA
LAR LB LBR LZ LZR).
Shield SD Plate Connect the external conductor of the shield cable.