Mitsubishi Electric MR-E A Series Instruction Manual page 49

3. SIGNALS AND WIRING
Signal
Encoder Z-phase
pulse
(Open collector)
Encoder A-phase
pulse
(Differential line
driver)
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Encoder B-phase
pulse
(Differential line
driver)
Encoder Z-phase
pulse
(Differential line
driver)
Analog monitor 1
Analog monitor 2
(3) Communication
Signal
RS-232C I/F
(4) Power supply
Signal
Digital I/F power
supply input
Open collector
power input
Digital I/F
common
Control common
Shield
Connec-
Symbol tor pin
No.
OP CN1-21 Outputs the zero-point signal of the encoder. One pulse is output
per servo motor revolution. OP and LG are connected 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.
LA CN1-15 Outputs pulses per servo motor revolution set in parameter No.
27 in the differential line driver system. In CCW rotation of the
LAR CN1-16 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
LB CN1-17
of the A- and B-phase pulses can be changed using parameter No.
54.
LBR CN1-18
LZ CN1-19 The same signal as OP is output in the differential line driver
system.
LZR CN1-20
MO1 CN3-4 Used to output the data set in parameter No.17 to across MO1-LG
in terms of voltage. Resolution 10 bits
MO2 CN3-6 Used to output the data set in parameter No.17 to across MO2-LG
in terms of voltage. Resolution 10 bits
Connec-
Symbol tor pin
No.
RXD CN3-1 RS-232C communication interface.
TXD CN3-2
Connec-
Symbol tor pin
No.
VIN CN1-1 Used to input 24VDC for input interface.
Connect the positive terminal of the 24VDC external power
supply.
24VDC 10%
OPC CN1-2 When inputting a pulse train in the open collector system, supply
this terminal with the positive ( ) power of 24VDC.
SG CN1-13 Common terminal for input signals such as SON and EMG. Pins
are connected internally.
Separated from LG.
LG CN1-14 Common terminal for OP, MO1, and MO2.
Pins are connected internally.
SD Plate Connect the external conductor of the shield cable.
Functions/Applications
Functions/Applications
Functions/Applications
3 - 18
Control
I/O
mode
division
P S
DO-2
DO-2
DO-2
Analog
output
Analog
output
Control
I/O
mode
division
P S
Control
I/O
mode
division
P S