Mitsubishi Electronics MR-J2S- A instruction manual Options and Auxiliary Equipment

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13.OPTIONS AND AUXILIARY EQUIPMENT

13.OPTIONS AND AUXILIARY EQUIPMENT

Before connecting any option or auxiliary equipment, make sure that the charge WARNING lamp is off more than 10 minutes after power-off, then confirm the voltage with a

tester or the like. Otherwise, you may get an electric shock.

CAUTION	Use the specified auxiliary equipment and options. Unspecified ones may lead to a
	fault or fire.

13.1 Options

13.1.1 Regenerative brake options

CAUTION	The specified combinations of regenerative brake options and servo amplifiers
	may only be used. Otherwise, a fire may occur.

(1) Combination and regenerative power

(Note) Regenerative power[W]

Servo amplifier	Built-in regenerative	MR-RB032		MR-RB12		MR-RB32 MR-RB30				MR-RB50
	brake resistor	[40	]	[40	]	[40	]	[13	]	[13	]
MR-J2S-10A(1)		30
MR-J2S-20A(1)	10	30		100
MR-J2S-40A(1)	10	30		100
MR-J2S-60A	10	30		100
MR-J2S-70A	20	30		100		300
MR-J2S-100A	20	30		100		300
MR-J2S-200A	100							300		500
MR-J2S-350A	100							300		500

Note: This value is the regenerative power of the resistor and is not the rated power.

(2)Selection of the regenerative brake option

(a)Simple selection method

In horizontal motion applications, select the regenerative brake option as described below: When the servo motor is run without load in the regenerative mode from the running speed to a stop, the permissible duty is as indicated in Section 5.1 of the separately available Servo Motor Instruction Manual.

For the servo motor with a load, the permissible duty changes according to the inertia moment of the load and can be calculated by the following formula:

Permissible Permissible duty for servo motor with no load (value indication Section 5.1 in Servo Motor Instruction Manual) duty

ratedspeed

running speed

2

[times/min]

where m load inertia moment/servo motor inertia moment

From the permissible duty, find whether the regenerative brake option is required or not. Permissible duty number of positioning times [times/min]

Select the regenerative brake option out of the combinations in (1) in this section.

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