12 - 33
12. OPTIONS AND AUXILIARY EQUIPMENT
12.3 Brake unit
POINT
The brake unit and resistor unit of other than 200V class are not applicable to
the servo amplifier.
The brake unit and resistor unit of other than 400V class are not applicable to
the servo amplifier.
The brake unit and resistor unit of the same capacity must be combined.
The units of different capacities may result in damage.
The brake unit and resistor unit must be installed on a vertical surface in the
vertical direction. If they are installed in the horizontal direction or on a horizontal
surface, a heat dissipation effect reduces.
The temperature of the resistor unit casing rises to higher than 100 . Do not
cause cables and combustibles to make contact with the casing.
The brake unit is the integration of the regenerative control and resistor and is connected to the bus (across
P-N) of the servo amplifier. As compared to the MR-RB regenerative option, the brake unit can return larger
power. Hence, use this brake unit when the MR-RB cannot provide sufficient regenerative capability.
When using the brake unit, set " 01" in parameter No.PA02.
(1) Selection
Brake unit
Resistor unit
Permissible continuous
power [kW]
Max. instantaneous power
[kW]
Applicable servo amplifier
FR-BU-15K FR-BR-15K
0.99
16.5
FR-BU-30K FR-BR-30K
1.99
33.4
FR-BU-55K FR-BR-55K
3.91
66.8
MR-J3-500A
MR-J3-700A
MR-J3-11KA
MR-J3-15KA
MR-J3-22KA
FR-BU-H15K FR-BR-H15K
0.99
16.5
FR-BU-H30K FR-BR-H30K
1.99
33.4
FR-BU-H55K FR-BR-H55K
3.91
66.8
MR-J3-11KA4
MR-J3-15KA4
MR-J3-22KA4
Summary of Contents for MELSERVO MR-J3 A Series
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Page 225: ...7 12 7 GENERAL GAIN ADJUSTMENT MEMO ...
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Page 251: ...9 10 9 TROUBLESHOOTING MEMO ...
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