MITSUBISHI ELECTRIC Merservo MR-J2S- B - Manual (Page 166)

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12. OPTIONS AND AUXILIARY EQUIPMENT
(d) MR-J2S-11KB-PX to MR-J2S-22KB-PX (when using the regenerative option)
The MR-J2S-11KB-PX to MR-J2S-22KB-PX servo amplifiers are not supplied with regenerative
resistors. When using any of these servo amplifiers, always use the MR-RB65, 66 or 67
regenerative option.
The MR-RB65, 66 and 67 are regenerative options that have encased the GRZG400-2
Ω , GRZG400-
1 Ω and GRZG400-0.8 Ω , respectively. When using any of these regenerative options, make the
same parameter setting as when using the GRZG400-2 Ω , GRZG400-1 Ω or GRZG400-0.8 Ω
(supplied regenerative resistors or regenerative option is used with 11kW or more servo amplifier).
Cooling the regenerative option with cooling fans improves regenerative capability.
The G3 and G4 terminals are for the thermal sensor. G3-G4 is opened when the regenerative
option overheats abnormally.
G3
G4
C
P
C
P
P
1
Regenerative option
Do not remove
the short bar.
Configure up a circuit which
shuts off main circuit power
when thermal sensor operates.
Servo amplifier
(Note)
Note. Specifications of contact across G3-G4
Maximum voltage :120V AC/DC
Maximum current :0.5A/4.8VDC
Maximum capacity : 2.4VA
Regenerative power [W]
Servo amplifier
Regenerative
option model
Resistance
[ ]
Without
cooling fans
With
cooling fans
MR-J2S-11KB-PX MR-RB65 8 500 800
MR-J2S-15KB-PX MR-RB66 5 850 1300
MR-J2S-22KB-PX MR-RB67 4 850 1300
When using cooling fans, install them using the mounting holes provided in the bottom of the
regenerative option. In this case, set "0E " in parameter No. 2.
Top
Bottom
TE1
G4 G3 C P
TE
2 cooling fans
(92 92, minimum air flow: 1.0m
3 )
MR-RB65 66 67
Mounting screw
4-M3(0.118)