Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 529

[Appendix 1] Summary of MR-J4_B_-RJ020 + MR-J4-T20
(5) MR-CR55K_(when regenerative options are used)
Make sure to supply power (shown in the following table) to the cooling fan.
Voltage/Frequency
Consumed power
Regenerative options may be heated to 100 °C or more above the ambient temperature. Carefully
determine the position of the radiation, installation position, wiring path, etc. Use flame-retardant wire for
wiring or apply flame retardant treatment by avoiding contact between the wires and the regenerative
option. The G3 and the G4 terminals are thermal protectors. Abnormal overheating of the regenerative
option causes the contact between G3 and G4 to open.
Be sure to use twisted wires when connecting to the converter unit and keep the wiring distance to no
longer than 5 m.
1) MR-RB139/MR-RB137-4
Note 1. When using the power factor improving DC reactor, remove the short bar across P1 and P2.
2. Specifications for contacts between G3 and G4
Maximum voltage: 120 V AC/DC
Maximum current: 0.5 A/4.8 V DC
Maximum capacity 2.4 VA
3. For the power specifications for the cooling fan, refer to the table in Appendix 1.
4. For MR-RB137-4, "R1" becomes "R400" and "S1" becomes "S400".
Item
Model MR-RB137/MR-RB139
1-phase 198 V AC to 242 V AC, 50
20 (50 Hz)/18 (60 Hz)
[W]
Power factor
improving
DC reactor
RA
DC 24 V
24VDC
(Note 3)
Power supply
Appendix 1-66
Table: Appendix 1 Cooling Fan
200 V class
Hz/60 Hz
Converter unit
(Option)
P1
P1
(Note 1)
P2
P2
C
P C
G3 G4
Regenerative
option
Cooling fan
(Note 4)
R1 S1
400 V class
MR-RB137-4/MR-RB13V-4
1-phase 380 V AC to 480 V AC, 50
Hz/60 Hz
20 (50 Hz)/18 (60 Hz)
5 m or less
(Note 2)