Specifications

82
External dimensions ConnectionsUnit: mm (inch)
Servo amplifier
MR-J2S-11KA4/B4
to 22KA4/B4
Serial connection
(1.0m
3
/min, M92✕2 units)
Twist
Leave a space of 70mm
(2.76 inch) or more between
each resistor.
Model Tolerable regenerative power (W)
500
850
850
Qty.
4
5
5
Resistance value (Ω)
20 (5Ω✕4)
12.5 (2.5Ω✕5)
10 (2Ω✕5)
Mass/unit kg (lb)
0.8 (1.8)
0.8 (1.8)
0.8 (1.8)
GRZG400-5Ω
GRZG400-2.5Ω
GRZG400-2Ω
With fan (W)
800
1300
1300
● GRZG400-5Ω, GRZG400-2.5Ω, GRZG400-2Ω: Standard accessory (Note 3, 5)
Model Tolerable regenerative power (W)
1300
3900 (3 units are required.)
Mass kg (lb)
10 (22)
11 (24.2)
MR-RB136-4
MR-RB138-4
● MR-RB136-4, MR-RB138-4
● MR-RB136-4
● MR-RB138-4
384 (15.12)
410 (16.14)
46 (1.81)
350 (13.78)
ø5.5 (0.217) hole Terminal
40 (1.57)
79 (3.11)
9 (0.35)
40 (1.57)
Notes:
1. Connect MR-RB136-4 to the converter unit.
2. Disconnect the short bar across P1-P2 when using the DC reactor.
Notes: 1. Connect MR-RB138-4 to the converter unit.
2. Disconnect the short bar across P1-P2 when using the DC reactor.
Servo motor
HA-LFS
Servo motor
thermal
Servo motor
thermal
OHS1
Power supply
24VDC
OHS2
P1
P2
P
G3 G4
C
Optional
regeneration
unit fan
1-phase
400VAC
1-phase
400VAC
(Note 2)
Converter unit
DC reactor (option)
PC
RS
RA
(Note 2)
OHS1
OHS2
P1
P2
P
G3 G4
C
PC
RS
RA
G3 G4
PC
RS
G3 G4
PC
RS
✽Create an external sequence that
turns off the servo amplifier's main
circuit contactor contact when the
thermal sensor contact (b contact)
in the optional regeneration unit
functions (opens) due to
overheating.
✽Create an external sequence that
turns off the servo amplifier's main
circuit contactor contact when the
thermal sensor contact (b contact)
in the optional regeneration unit
functions (opens) due to
overheating.
2-ø10 (0.394) hole
230 (9.06)
260 (10.24)
15 (0.59)15 (0.59)
10 (0.39)
2.3 (0.09)
15 (0.59)
197 (7.76)
215 (8.46)
480 (18.9)
10
(0.39)
10 (0.39)
500 (19.69)
Fan
L1
L2
L3
U
V
W
P
P1
C
N
Do not disconnect the short bar.
● MR-RB6B-4, MR-RB60-4, MR-RB6K-4 (Note 3, 5)
Model
MR-RB6B-4
MR-RB60-4
MR-RB6K-4
Tolerable
regenerative power (W)
500
850
850
10 (22)
11 (24.2)
11 (24.2)
Description
GRZG400-5Ω✕4
GRZG400-2.5Ω✕5
GRZG400-2Ω✕5
P
C
G3
G4
Optional regeneration unit
Servo amplifier
MR-J2S-11KA4/B4
to 22KA4/B4
Create a circuit that shuts off
the main circuit power supply when
the thermal sensor activates.
COM
ALM
P
P1
C
RA
(Note)
800
1300
1300
With fan
(W)
Mass
kg (lb)
Do not disconnect the short bar.
Note: Create a sequence that turns off the magnetic contactor (MC)
when abnormal overheating occurs.
Servo motor
HA-LFS
Optional
regeneration
unit fan
Optional
regeneration
unit fan
Optional
regeneration
unit fan
Converter unit
DC reactor (option)
Power supply
24VDC
<Terminal arrangement>
Terminal screw size: M5
G4 G3 C PR400 S400
3.
4.
5.
The servo amplifier (MR-J2S-MKM4-PX) without enclosed regenerative resistor is available for the servo amplifiers MR-J2S-11KA4/B4 to 22KA4/B4.
Always use twisted wires for a thermal sensor, and make sure that the sensor does not fail to work properly due to inducted noise.
When increasing the regeneration braking frequency, install cooling fans (approx. 1.0m
3
/min, M92 x 2 units) and change the parameter No. 0 (for MR-J2S-A type) or No. 2 (for MR-J2S-B
type). The cooling fan must be ordered by user.
<Terminal arrangement>
G3G4 PC
Terminal screw size: M5
TE1
2-ø10 (0.394)
mounting hole
30 (1.18) 30 (1.18)
215 (8.46)
260 (10.24)
230 (9.06)
15 (0.59)
230 (9.06)
2.3 (0.09)
500 (19.69)
480 (18.9)
10 (0.39) 10 (0.39)
440 (17.32)
TE1
Mounting screw size: M8
Mounting screw size: M8
Note: 3 units of MR-RB138-4 are required for each servo amplifier.
Mounting screw size: M5
Note: By installing the thermal sensor, create a safety circuit that shuts off
the main circuit power supply when abnormal overheating occurs.
Options