Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 579

16. INDEXER POSITIONING OPERATION
(b) Output device
Device Symbol
Ready
Trouble
Home position return
completion
(2) Input signals
Device Symbol
Manual pulse generator
(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
Encoder A-phase pulse
(differential line driver)
Encoder B-phase pulse
(differential line driver)
Encoder Z-phase pulse
(differential line driver)
(4) Power supply
Signal Symbol
Digital I/F power supply DICOM
input
Digital I/F common DOCOM
MR-HDP01 open
collector power input
Control common
Shield
POINT
Output devices assigned to the CN6 connector pins can be used with RX of
CC-Link.
Connector
pin No.
RD CN6-14 Refer to section 16.2.2 (2) for details of the device.
ALM CN6-15 ALM turns off when the power is switched off or the protective circuit is activated to
shut off the base circuit. Without alarm occurring, ALM turns on in about 1.5s after
power-on.
The logic is opposite to RX(n＋1)A or RX(n＋3)A.
ZP CN6-16
Refer to section 16.2.2 (2) for details of the device.
Connector
pin No.
PP CN6-6 Not used in indexer positioning operation.
NP CN6-19
Connector
pin No.
LA CN6-11 Outputs pulses per servo motor revolution set in parameter No.PA15 in the
LAR CN6-24
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
LB CN6-12 of /2.
LBR CN6-25
The relationships between rotation direction and phase difference of the A-
and B-phase pulses can be changed using parameter No.PC19
LZ CN6-13 Outputs the zero-point signal of the encoder in the differential line driver
LZR CN6-26
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.
Connector
pin No.
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.
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.
OPC CN6-18 Not used in indexer positioning operation.
LG CN6-23 Common terminal for the differential line driver of the encoder pulses
(LA LAR LB LBR LZ LZR).
SD Plate Connect the external conductor of the shield cable.
Functions/Applications
Functions/Applications
Functions/Applications
Functions/Applications
16 - 24
I/O
division
DO-2
DO-2
I/O
division