Mitsubishi Electric MR-J4, Instruction Manual

Page: 117 / 794

3. SIGNALS AND WIRING
3 - 38
(3) Output signal
Device Symbol
Connector
pin No.
Function and application
I/O
division
Control
mode
P S T
Encoder A-
phase pulse
(differential line
driver) LA
LAR
CN1-4
CN1-5 The encoder output pulses set in [Pr. PA15] are outputted 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
π /2.
The relation between rotation direction and phase difference of the A-
phase and B-phase pulses can be changed with [Pr. PC19].
DO-2
Encoder B-
phase pulse
(differential line
driver) LB
LBR
CN1-6
CN1-7
Encoder Z-
phase pulse
(differential line
driver) LZ
LZR
CN1-8
CN1-9 The encoder zero-point signal is outputted in the differential line driver
type. One pulse is outputted per servo motor revolution. This turns on
when the zero-point position is reached. (negative logic)
The minimum pulse width is about 400
μ s. For home position return using
this pulse, set the creep speed to 100 r/min. or less.
DO-2
Encoder Z-
phase pulse
(open-collector) OP CN1-33 The encoder zero-point signal is outputted in the open-collector type. DO-2
Analog monitor 1 MO1 CN6-3 This is used to output the data set in [Pr. PC14] to between MO1 and LG in
terms of voltage.
Output voltage: ±10 V
Resolution: 10 bits or equivalent
Analog
output
Analog monitor 2 MO2 CN6-2 This signal outputs the data set in [Pr. PC15] to between MO2 and LG in
terms of voltage.
Output voltage: ±10 V
Resolution: 10 bits or equivalent
Analog
output
(4) Communication
Device Symbol
Connector
pin No.
Function and application
I/O
division
Control
mode
P S T
RS-422/RS-485
I/F SDP CN3-5 These are terminals for RS-422/RS-485 communication.
SDN CN3-4
RDP CN3-3
RDN CN3-6