Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual page 372

13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
(b) MR-RB137 MR-RB138-4
Power factor improving
DC reactor (Option)
(Note 3)
Power supply
Note 1. When using the Power factor improving DC reactor, remove the short bar across P
2. G3-G4 contact specifications
Maximum voltage: 120V AC/DC
Maximum current: 0.5V/4.8VDC
Maximum capacity: 2.4VA
3. For specifications of cooling fan power supply, refer to Table 13.3.
4. For MR-RB138-4, "R" is "R400" and "S" is "S400".
POINT
Three of MR-RB137 or MR-RB138-4 are required per converter unit. Please
purchase three of MR-RB137 or MR-RB138-4.
Converter unit
P
1
(Note 1)
P
2
C
P C P C
G3 G4 G3 G4
Regenerative Regenerative
option option
Cooling fan Cooling fan
(Note 4) (Note 4)
R S R S
5m or less
P C
(Note 2)
G3 G4
Regenerative
option
Cooling fan
(Note 4)
R S
13 - 75
Servo motor
OHS1
24VDC
power supply
RA
-P .
1 2
OHS2
Servo motor
thermal relay