Mitsubishi Electric GENERAL PURPOSE AC SERVO MR-E- A/AG Instruction Manual page 49

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