Mitsubishi Electronics MR-J2S- CL specifications 4Connection of the regenerative brake option, 14

14.OPTIONS AND AUXILIARY EQUIPMENT

(4)Connection of the regenerative brake option

The regenerative brake option will generate heat of about 100. Fully examine heat dissipation, installation position, used cables, etc. before installing the option. For wiring, use flame-resistant cables and keep them clear of the regenerative brake option body. Always use twisted cables of max. 5m(16.4ft) length for connection with the servo amplifier.

(a)MR-J2S-350CL or less

Always remove the wiring from across P-D and fit the regenerative brake option across P-C.

The G3 and G4 terminals act as a thermal protector. G3-G4 are disconnected when the regenerative brake option overheats abnormally.

Servo amplifier

D

Always remove the lead from across P-D.

Regenerative brake option

P C

(Note2)

5m (16.4 ft) max.

P

C

G3

G4

Fan (Note 1)

Note: 1. When using the MR-RB50, forcibly cool it with a cooling fan (1.0m3/min,92 or so).

2.Make up a sequence which will switch off the magnetic contactor (MC) when abnormal heating occurs.

G3-G4 contact specifications Maximum voltage: 120V AC/DC Maximum current: 0.5A/4.8VDC Maximum capacity: 2.4VA

For the MR-RB50 install the cooling fan as shown.

Top

Fan Terminal block

Thermal relay

	Bottom
	Horizontal installation Installation surface
Vertical
installation

[Unit : mm(in)] Fan installation screw hole dimensions

2-M3 screw hole (for fan installation) Depth 10 or less (Screw hole already

machined)

82.5	(3.25)
133	(5.24)

82.540 (1.58)

(3.25)

Recommended fan:

Toyo Denki's TL396A or equivalent

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