Specifications

13
 Options
z Absolute position storage unit (MR-BTAS01)
This absolute position storage unit is required for configuring absolute position detecting system.
External dimensions (Unit: mm)
Notes: 1. When mounting the absolute position storage unit outside a control panel, be sure to mount the surface A with 4 screws. When mounting
the unit inside a control panel, mounting the surface B with 2 screws is also possible.
z Battery (MR-J3BAT)
The direct drive motor’s absolute position data can be retained by mounting the battery on the servo amplifier.
The battery is not required when the servo system is used in incremental mode.
Appearance
Note: MR-J3BAT is a lithium metal battery. MR-J3BAT is not subject to the dangerous goods (Class 9) of the UN Recommendations.
To transport lithium metal batteries and lithium metal batteries contained in equipment by means of transport subject to the UN
Recommendations, take actions to comply with the following regulations: the United Nations Recommendations on the Transport of Dangerous
Goods, the Technical Instruction (ICAO-TI) by the International Civil Aviation Organization (ICAO), and the International Maritime Dangerous
Goods Code (IMDG Code) by the International Maritime Organization (IMO). To transport the batteries, check the latest standards or the laws of
the destination country and take actions. For more information, consult our branch or representative. (As of October 2009)
z Optional regeneration unit
Tolerable regeneration power (W) (Note 3)
Optional regeneration unit (Note 1)
Servo amplifier
Built-in
regenerative
resistor
(Note 1)
MR-RB032
[40Ω]
MR-RB12
[40Ω]
MR-RB30
[13Ω]
MR-RB31
[6.7Ω]
MR-RB32
[40Ω]
MR-RB50
[13Ω]
(Note2)
MR-RB51
[6Ω]
(Note2)
MR-J3-20B-RJ080W 10 30 100
– – – – –
MR-J3-40B-RJ080W 10 30 100
– – – – –
MR-J3-60B-RJ080W 10 30 100
– – – – –
MR-J3-70B-RJ080W 20 30 100
– –
300
– –
MR-J3-100B-RJ080W 20 30 100
– –
300
– –
MR-J3-350B-RJ080W 100
– –
300
– –
500
–
MR-J3-500B-RJ080W 130
– – –
300
– –
500
Notes: 1. For external dimensions and connections of the built-in regenerative resistor and optional regeneration unit, refer to "MELSERVO-J3
catalog (L(NA)03017)".
2. Be sure to install a cooling fan. The cooling fan must be prepared by user.
3. The power values in this table are resistor-regenerated powers, not rated powers.