Servo Parameter Setting; Connection Of Regenerative Option - Mitsubishi Electric MELSERVO MR-J5 Series User Manual

Servo parameter setting

Set [Pr. PA02] according to the regenerative option to be used.
MR-J5-G/MR-J5W-G User's Manual (Parameters)
MR-J5-B/MR-J5W-B User's Manual (Parameters)
MR-J5-A User's Manual (Parameters)

Connection of regenerative option

When using the MR-RB50, MR-RB5N, MR-RB51, MR-RB5Z, MR-RB3M-4, MR-RB3G-4, MR-RB5G-4, MR-
RB3Y-4, MR-RB5Y-4, MR-RB34-4, MR-RB54-4, MR-RB3U-4, or MR-RB5U-4, cool it with a cooling fan. The
cooling fan should be prepared by the customer.
For the wire sizes, refer to the following.
Page 326 Selection example of wires
The regenerative option generates heat that is 100 °C higher than the ambient temperature. Fully consider heat dissipation,
the installation position, wires used, and other relevant areas before installing the option. For wiring, use flame-retardant wires
or make the wires flame retardant, and do not let them touch the regenerative option. Use twisted wires with a maximum
length of 5 m for a connection with the servo amplifier.
For servo amplifiers of 7 kW or less
Remove the wiring between P+ and D and install the regenerative option between P+ and C. G3 and G4 are terminals for the
thermal sensor. Between G3 and G4 opens if the regenerative option overheats abnormally.
Remove the wiring between P+ and D.
Servo amplifier
P+
×
C
×
D
5 m or less
*1 When using the MR-RB50, MR-RB5N, MR-RB51, MR-RB5Z, MR-RB3M-4, MR-RB3G-4, MR-RB5G-4, MR-RB3Y-4, MR-RB5Y-4, MR-
RB34-4, MR-RB54-4, MR-RB3U-4, or MR-RB5U-4, forcibly cool it with a cooling fan (1.0 m
*2 If using the MR-RB30, MR-RB31, MR-RB3Z, MR-RB3N, or MR-RB34 with a regenerative load ratio of higher than 60 % and at an
ambient temperature of above 55 °C, forcibly cool it with a cooling fan (1.0 m
required if the ambient temperature is 35 °C or less. (A cooling fan is required for the shaded area in the following graph.)
100
60
A cooling fan is
not required.
0
0
Ambient temperature [°C]
*3 Configure a sequence which will switch off the magnetic contactor when abnormal heating occurs.
G3-G4 contact specifications
Maximum voltage: 120 V AC/DC
Maximum current: 0.5 A/4.8 V DC
Maximum capacity: 2.4 VA
6 OPTIONS AND PERIPHERAL EQUIPMENT
278
6.2 Regenerative option
Regenerative option
P
C
G3
*3 θ
G4
*1*2
Cooling fan
A cooling fan is required.
35 55
3
/min or more, 92 mm × 92 mm).
3
/min or more, 92 mm × 92 mm). A cooling fan is not