Mitsubishi Electric MELSERVO-J4 MR-J4 A Series - Output Signal

3. SIGNALS AND WIRING
3 - 28
(3) Output signal
Control
mode
Device Symbol
Connect
or pin
No.
Function and application
I/O
divisi
on
PST
Encoder A-
phase pulse
(differential line
driver)
LA
LAR
CN1-4
CN1-5
DO-2
Encoder B-
phase pulse
(differential line
driver)
LB
LBR
CN1-6
CN1-7
These devices output pulses of encoder output set in [Pr. 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 ʌ/2.
The relation between rotation direction and phase difference of the A-
phase and B-phase pulses can be changed with [Pr. PC19].
Encoder Z-
phase pulse
(differential line
driver)
LZ
LZR
CN1-8
CN1-9
The encoder zero-point signal is output in the differential line driver type.
One pulse is output per servo motor revolution. This turns on when the
zero-point position is reached. (negative logic)
The minimum pulse width is about 400 ȝs. 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 output 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.
Resolution: 10 bits or equivalent
Anal
og
outp
ut
Analog monitor 2 MO2 CN6-2 This signal output the data set in [Pr. PC15] to between MO2 and LG in
terms of voltage.
Resolution: 10 bits or equivalent
Anal
og
outp
ut
(4) Communication (available in the future)
Control
mode
Device Symbol
Connect
or pin
No.
Function and application
I/O
divisi
on
PST
RS-422 I/F SDP CN3-5 These are terminals for RS-422 communication.
SDN CN3-4
RDP CN3-3
RDN CN3-6
division
A
nalog
output
A
nalog
output
division