Specifications

Standard Wiring Diagram
MR-J3-MA type: Position control operation
● Connection to QD75D (position servo, incremental)
Encoder A-phase pulse
(differential line driver)
CN6
2 meters (6.56 ft) max.
MO1
3
LG
A
A
1
MO2
2
INP
DICOM
DOCOM
CN1
24
20
46
41
12
49
10
11
OPC
CR
35
RD
PP
36
PG
8
9
3
NP
NG
LZ
LZR
LG
LA
4
LAR
5
LB
6
OP
34
LBR
LG
7
P15R
33
SD
1
EMG
2 meters (6.56 ft) max.
10 meters (32.81 ft) max.
Upper limit setting
18
SON
43
PC
TL
47
RES
44
42
15
17
19
P15R
1
TLA
27
21
48
23
25
LG
28
SD
PLATE
Proportional control
Torque limit selection
Emergency stop
Forward rotation stroke end
Reversed rotation stroke end
Reset
Servo on
Malfunction
Zero speed detection
Torque limit in effect
In-position
RA1
RA2
RA3
RA4
CN4
CN3
CN2
CN5
(Note 3)
(Note 9)
1
P5
2
LG
3
MR
4
MRR
7
MD
8
MDR
9
BAT
SD
PLATE
U
2
3
4
1
1
2
V
W
B1
B2
Servo motor
HF-KP series
Servo motor
HF-SP series
SM
Electromagnetic
brake
P5
LG
MR
MRR
MD
MDR
BAT
SD
Encoder
EMG
24VDC
10 meters (32.81 ft) max.
LSP
LSN
DOCOM
DICOM
ALM
ZSP
TLC
RDP
RDN
SDP
SDN
GND
GND
RS-422
SDP
SDN
RDP
RDN
LG
LG
TRE
5
4
3
6
1
7
8
BAT
LG
1
2
USB
MR Configurator
(Setup software)
VBUS
D
–
D
+
1
2
GND
5
SHIELDSHELL
3
Mount the optional battery
(MR-J3BAT) when using with
the absolute system.
24VDC power supply
Servo amplifier
MR-J3-MA
Create a sequence that cuts off the MC
when an alarm or emergency stop occurs.
L1
L2
L3
NFB
MC
Power supply
3-phase
200 to 230VAC
(Note 1)
Optional
regeneration
unit
L11
L21
P
C
D
The servo amplifier could be
damaged if the optional regeneration
unit or power factor improvement DC
reactor is incorrectly connected.
Always disconnect the
connection across P-D
when connecting the
optional regeneration
unit externally.
Always disconnect
the connection
across P1-P2 when
using the FR-BEL.
N
P1
P2
Power factor
improvement
DC reactor
FR-BEL
(option)
CNP2
CNP1
U
V
W
CNP3
10 meters (32.81 ft) max.
Name
CLEAR COM
CLEAR
RDY COM
READY
PULSE F
+
PULSE F –
PULSE R
+
PULSE R –
PG05
PG0 COM
Common terminal
Pin No.
MM14
MM13
MM12
MM11
MM15
MM16
MM17
MM18
MM 9
MM10
Positioning unit QD75D
PLATE
VBUS
D
–
D
+
GND
SHELL
SM
A
B
C
D
B1
B2
24VDC
EMG
W
V
U
W
V
U
P5
LG
MR
MRR
MD
MDR
BAT
SD
P5
LG
MR
MRR
MD
MDR
BAT
SD
1
2
3
4
7
8
9
PLATE
CN2
An encoder cable
is available. Refer
to the section
“Options ● Cables
and Connectors”
in this catalog for
details on the
cable models.
Encoder
Encoder B-phase pulse
(differential line driver)
Control common
Encoder Z-phase pulse
(open collector)
+
–
(Note 4)
(Note 15)
(Note 5)
(Note 7)
(Note 2)
2 meters (6.56 ft) max.
Analog torque limit
+10V/maximum torque
(Note 13)
(Note 11)
(Note 15)
(Note 14)
(Note 12)
(Note 13)
(Note 11)
Shut off when the servo
on signal turns off and
when alarm signal is issued.
An encoder cable is available. Refer to the section
“Options ● Cables and Connectors” in this
catalog for details on the cable models.
Shut off when the servo
on signal turns off and
when alarm signal is issued.
Electro-
magnetic
brake
30 meters (98.43 ft) max.
(Note 10)
3 meters (9.84 ft) max.
Personal computer
running Microsoft Windows
Maximum +1mA total
Double oscillation
(±10V output)
Monitor output
Monitor output 1
Monitor output 2
10kΩ
10kΩ
Notes:
1. When using the 1-phase 230VAC (MR-J3-70A or smaller), connect the power supply to L1 and L2. Do not connect anything to L3.
2. Do not reverse the diode’s direction. Connecting it backwards could cause the amplifier to malfunction that signals are not output, and emergency stop and other safety circuits are
inoperable.
3. Use the 24VDC±10% 300 to 900mA power supply. Note that the power capacity differs according to the number of input/output points in use. Refer to “MR-J3-MA SERVO AMPLIFIER
INSTRUCTION MANUAL” for details.
4. EMG (emergency stop) contact (normally closed contact) must be installed. If it is not installed, operation will be impossible.
5. LSP and LSN contacts must be closed for normal operation. If they are not closed, command will not be accepted.
6. Signals with the same name are connected inside.
7. Malfunction signal (ALM) is turned on during normal operation when no alarms have been triggered.
8. Connect the shield wire securely to the plate inside the connector (ground plate).
9. Connect between LG and common terminal to increase noise resistance.
10. Max. 3m (9.84ft) is possible in a good noise environment.
11. Refer to “MR-J3-MA SERVO AMPLIFIER INSTRUCTION MANUAL” for details on the connection. Change the parameter No. PC22 when using the 4-wire cable (MR-EKCBL30M-H/-L to
MR-EKCBL50M-H) for the HF-KP series.
12. In the final axis, connect between TRE and RDN.
13. For the motor with an electromagnetic brake. The power supply connected to the electromagnetic brake is not related to the polarity.
14. A personal computer can also be connected with the RS-422/RS-232C conversion cable (refer to “Introductory Parts” in this catalog).
15. This is for sink wiring. Source wiring is also possible. Refer to “MR-J3-MA SERVO AMPLIFIER INSTRUCTION MANUAL” for details.
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