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11. OPTIONS AND AUXILIARY EQUIPMENT
(a) MR-J3-350B or less
MR-J3-200B4 or less
Always remove the wiring from across P-D and fit the regenerative option across P-C.
The G3 and G4 terminals act as a thermal sensor. G3-G4 is disconnected when the regenerative option
overheats abnormally.
D
P
C
G4
G3
C
P
Regenerative option
5m max.
Servo amplifier
Always remove the lead from across P-D.
(Note 2)
Cooling fan
(Note 1)
Note 1. When using the MR-RB50 MR-RB3M-4 MR-RB3G-4 MR-RB5G-4, forcibly cool it with a cooling fan (92 92, minimum air
flow : 1.0m
3
).
2. Make up a sequence which will switch off the magnetic contactor (MC) when abnormal heating occurs.
G3-G4 contact specifications
Maximum voltage: 120V AC/DC
Maximum current: 0.5A/4.8VDC
Maximum capacity: 2.4VA
For the MR-RB50
MR-RB3M-4 MR-RB3G-4 MR-RB5G-4 install the cooling fan as shown.
(for cooling fan installation)
Depth 10 or less
(Screw hole already
machined)
Cooling fan installation screw hole dimensions
82.5
40
82.5133
2-M3 screw hole
Terminal block
Thermal relay
Installation surface
Horizontal installation
Vertical
installation
Top
Bottom
[Unit : mm]
Cooling fan