Mitsubishi HD-5000A Instruction Manual Page 269

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14 - 8
14. OPTIONS AND AUXILIARY EQUIPMENT
(c) MR-RB50
MR-RB51
[Unit: mm (in)]
Terminal block
G4
G3
C
P
Terminal screw: M4
Tightening torque: 1.2 [N m]
(10.6 [Ib
in])
Mounting screw
Screw: M6
Tightening torque: 5.4 [N
m]
(47.79 [Ib
in])
Regenerative
option
Mass [kg] (Ib)
MR-RB50
MR-RB51
5.6 (12.3)
2.3
(0.09)
49
(1.93)
82.5
(3.25)
200 (7.87)
217 (8.54)
17
(0.67)
8 (0.32)
120 (4.73)
108 (4.25)
12
(0.47)
7 (0.28)
Approx.30 (1.18)
7 14
slot
Cooling fan mounting
screw (2-M3 screw)
On opposite side
Wind blows in the
arrow direction
14.1.2 FR-BU2 brake unit
POINT
Use a 200V class brake unit and a resistor unit with a 200V class servo
amplifier. Combination of different voltage class units and servo amplifier
cannot be used.
Install a brake unit and a resistor unit on a flat surface vertically. When
the unit is installed horizontally or diagonally, the heat dissipation effect
diminishes.
Temperature of the resistor unit case rises to higher than 100 . Keep
cables and flammable materials away from the case.
Ambient temperature condition of the brake unit is between 10 (14 )
and
50 (122 ). Note that the condition is different from the ambient
temperature condition of the servo amplifier (between 0
(32 ) and
55 (131 )).
Configure the circuit to shut down the power-supply with the alarm
output of the brake unit and resistor unit under abnormal condition.
Use the brake unit with a combination indicated in this section (1).
For executing a continuous regenerative operation, use FR-RC power
regeneration converter.
Brake unit and regenerative options (Regenerative resistor) cannot be
used simultaneously.
Connect the brake unit to the bus of the servo amplifier. As compared to the MR-RB regenerative option,
the brake unit can return larger power. Use the brake unit when the regenerative option cannot provide
sufficient regenerative capability.
When using the brake unit, set the parameter No.0 of the servo amplifier to " 01
".
When using the brake unit, always refer to the FR-BU2-(H) Brake Unit Instruction Manual.
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