3 - 8
3. SIGNALS AND WIRING
3.2.2 Signal explanationsFor the I/O interfaces (symbols in I/O column in the table), refer to Section 3.4.2.(1) Connector applications
Connector Name Function/Application
CN1A Connector for bus cable from preceding axis. Used for connection with the con troller or preceding-axis
servo amplifier.
CN1B Connector for bus cable to next axis Used for connection with the next-axi s servo amplifier or
for connection of the termination connector .
CN2 Encoder connector Used for connection with the servo motor encoder.
CN3 Communication connector
(I/O signal connector)
Used for connection with the personal computer.
Serves as an I/O signal connector when the personal
computer is not used.
(Note) CN4 Analog monitor output connector Used to output analog monitor 1 (M01) and analog monitor
2 (M02).
(Note) CON2 IO signal connector Used to input a forced stop and output the dynamic brake
interlock(DR), the electromagnetic brake interlock
Note. These connectors are exclusive to the MR-J2S-11KB or more.
(2) I/O signals(a) Input signal
Connector Pin
No.
Signal S
y
mbol 7kw
or less 11k w
or more
Function/Application I/O Divis ion
Forced stop EM1 CN3
20 CON2
2
Turnin
g
off EM1 puts the servo motor in a forced stop status,
in which the servo is switched off and the d
y
namic brake is
operated to stop the servo motor.
Turn on EM1 in the forced stop status to reset the forced stop
status.
DI-1
(b) Output signals
Connector Pin
No.
Signal S
y
mbol 7kw
or less 11k w
or more
Function/Application I/O Divis ion
Electromagnetic brake
interlock MBR CN3
13 CON2
3In the servo-off or alarm status, MBR turns off. DO-1
Dynamic brake
interlock DB CON2
4When usin
g
this si
g
nal, set 1 in the parameter No. 2.
When the dynamic brake is operated, DB turns off. DO-1
Encoder A-phase pulse
(Differential line driver) LA
LAR
CN3
6
CN3
16
CN3
6
CN3
16
Encoder B-phase pulse
(Differential line driver) LB
LBR
CN3
7
CN3
17
CN3
7
CN3
17
Outputs pulses per servo motor revolution set in parameter
No.38 in the differential line driver s
y
stem. In CCW rotation
of the servo motor, the encoder B-phase pulse la
g
s the
encoder A-phase pulse by a phase angle of /2.
DO-2
Encoder Z-phase pulse
(Differential line driver) LZ
LZR
CN3
8
CN3
18
CN3
8
CN3
18
The zero-phase si
g
nal of the encoder is output in the
differential line driver system. DO-2
Analog monitor 1 MO1 CN3
4CN4
1Used to output the data set in parameter No.22 to across
MO1-LG in terms of voltage. Resolution 10 bits Analog
output
Analog monitor 2 MO2 CN3
14 CN4
2Used to output the data set in parameter No.22 to across
MO2-LG in terms of voltage. Resolution 10 bits Analog
output
(c) Power supply
Connector Pin
No.
Signal Symbol 7kw
or less 11k w
or more
Function/Application
Internal power output
for interface VDD CN3
10 CON2
15
Driver power output terminal for digital interface.
Used to output 24V 10% to across VDD-COM. Connect with COM.
Permissible current: 80mA
Power input for digital
interface COM CN3
5CON2
18
Driver power input terminal for digital interface.
Used to input 24VDC (200mA or more) for input interface.
Connect with VDD.
Common for digital
interface SG CN3
3CON2
1Common terminal to VDD and COM. Pins are connected internally.
Separated from LG.
Control common LG CN3
1
11
CN4
4
Common terminal to MO1 an d MO2.
Shield SD Plate Plate Connect the external conductor of the shield cable.