Mitsubishi Electric Melservo MR-J3- 350B4, Инструкция по эксплуатации

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13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
(4) Connection of the regenerative option
Always supply 1-phase 200V and 400V respectively to the cooling fan. The cooling fan specifications are as
follows.
Table 13.3 Cooling fan
Item 200V class 400V class
Model MR-RB137 MR-RB139 MR-RB136-4 MR-RB138-4
Voltage Frequency 1-phase 198 to 242VAC, 50/60Hz 1-phase 380 to 480VAC, 50/60Hz
Power consumption [W] 20 (50Hz)/18 (60Hz) 20 (50Hz)/18 (60Hz)
The regenerative option generates heat of 100 higher than the ambient temperature. Fully consider heat
dissipation, installation position, used wires, etc. to place the option. For wiring, use flame-resistant wires or
make the wires flame-resistant and keep them away from the regenerative option. The G3 and G4 terminals act
as a thermal sensor. G3-G4 are opened when the regenerative option overheats abnormally.
Always twist the wires for connection with the converter unit and connect the wires within the overall distance of
5m.
(a) MR-RB139 MR-RB136-4
Converter unit
P
1
P
2
(Note 1)
Power factor improving
DC reactor (Option)
C
Servo motor
G4 G3
P C
Regenerative
option
Cooling fan
RA
(Note 2)
5m or less
(Note 3)
Power supply
24VDC
power supply
Servo motor
thermal relay
OHS1 OHS2
R S
(Note 4)
Note 1. When using the Power factor improving DC reactor, remove the short bar across P
1
-P
2
.
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-RB136-4, “R” is “R400” and “S” is “S400”.