Mitsubishi Electric MELSERVO-JN Series, Инструкция по эксплуатации

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3. SIGNALS AND WIRING
(2) Input signals
Signal Symbol
Connec-
tor pin No.
Functions/Applications
I/O
division
Control
mode
P S T
Forward rotation
pulse train
Reverse rotation
pulse train PP
NP
PG
NG
CN1-23
CN1-25
CN1-22
CN1-24 Used to input command pulses.
In the open collector system (max. input frequency 200kpps)
Forward rotation pulse train across PP-DOCOM
Reverse rotation pulse train across NP-DOCOM
In the differential receiver system (max. input frequency 1Mpps)
Forward rotation pulse train across PG-PP
Reverse rotation pulse train across NG-NP
The command input pulse form can be changed using parameter No. PA13.
DI-2 (Note)
Note. For the internal speed control mode or the internal torque control mode, PP or NP cannot be assigned to the CN1-23 pin or CN1-
25 pin. When assigning an input device to the CN1-23 pin or CN1-25 pin, supply OPC with 24VDC ( ) and use it at the sink
interface. It cannot be used at source interface.
(3) Output signals
Signal Symbol
Connec-
tor pin No.
Functions/Applications
I/O
division
Control
mode
P S T
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 s. 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 type. 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 type. DO-2
(4) Power supply
Signal Symbol
Connec-
tor pin No.
Functions/Applications
I/O
division
Control
mode
P S T
Digital I/F power
supply input DICOM CN1-1 Used to input 24VDC (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. Pins are
connected internally.
Separated from LG.
For a sink interface, connect the negative terminal of the 24VDC external
power supply to DICOM.
For a source interface, connect the positive terminal of the 24VDC
external power supply to DICOM.
Control common LG CN1-14 Common terminal for OP.
Shield SD Plate Connect the external conductor of the shield cable.