Specifications

Standard Wiring Diagram
Control common
Encoder Z-phase pulse
(differential line driver)
Encoder A-phase pulse
(differential line driver)
Encoder B-phase pulse
(differential line driver)
Encoder Z-phase pulse
(open collector)
DICOM
DOCOM
CN1
20
46
8
9
4
5
6
LZ
7
LZR
LA
34
LAR
33
1
LB
LBR
LG
OP
P15R
SD
PLATE
PLATE
EMG
42
SON
15
RES
19
ST1
16
SP1
SP2
41
ST2
17
LSP
18
LSN
43
DOCOM
44
47
DICOM
21
ALM
48
TLC
25
ZSP
23
P15R
1
TLA
27
49
24
2
LG
VC
28
SD
Speed selection 1
Speed selection 2
Emergency stop
Forward rotation start
Reverse rotation start
Forward rotation stroke end
Reversed rotation stroke end
Reset
Servo on
Malfunction
Zero speed detection
Torque limit in effect
RA1
RA2
RA3
RA4
RA5
CN3
CN2
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
(Note 12)
P5
LG
MR
MRR
MD
MDR
BAT
SD
EMG
24VDC
Speed reached
Ready
RD
SA
RDP
RDN
SDP
SDN
GND
GND
30 meters (98.43 ft) max.
RS-422
SDP
SDN
RDP
RDN
LG
LG
TRE
5
4
3
6
1
7
8
CN6
2 meters (6.56 ft) max.
MO1
3
LG
A
A
1
MO2
2
Servo amplifier
MR-J3-MA
L1
L2
L3
NFB
MC
L11
L21
P
C
D
N
P1
P2
CNP2
CNP1
U
V
W
CNP3
(Note 10)
(Note 13)
(Note 11)
CN5
USB
(Note 9)
VBUS
D
–
D
+
1
2
GND
5
SHIELD
SHELL
3
3 meters (9.84 ft) max.
VBUS
D
–
D
+
GND
SHELL
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
(Note 12)
(Note 10)
SM
A
B
C
D
B1
B2
24VDC
EMG
W
V
U
W
V
U
MR-J3-MA type: Speed control operation
● Connection
Create a sequence that cuts off the MC
when an alarm or emergency stop occurs.
Power supply
3-phase
200 to 230VAC
(Note 1)
Optional
regeneration
unit
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.
Power factor
improvement
DC reactor
FR-BEL
(option)
(Note 3)
24VDC power supply
+
–
10 meters (32.81 ft) max.
10 meters (32.81 ft) max.
10 meters (32.81 ft) max.
2 meters (6.56 ft) max.
(Note 4)
(Note 14)
(Note 5)
(Note 7)
(Note 2)
Upper limit
setting
Upper limit
setting
Analog torque limit
+10V/maximum torque
Analog speed command
±10V/rated speed
(in this wiring diagram,
+10V/rated speed)
2 meters (6.56 ft) max.
Electromagnetic
brake
Shut off when the servo
on signal turns off and
when alarm signal is issued.
Encoder
An encoder cable is available. Refer to the section
“Options ● Cables and Connectors” in this
catalog for details on the cable models.
Electro-
magnetic
brake
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.
Encoder
MR Configurator
(Setup software)
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. Max. 3m (9.84ft) is possible in a good noise environment.
10. 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.
11. In the final axis, connect between TRE and RDN.
12. For the motor with an electromagnetic brake. The power supply connected to the electromagnetic brake is not related to the polarity.
13. A personal computer can also be connected with the RS-422/RS-232C conversion cable (refer to “Introductory Parts” in this catalog).
14. 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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