Mitsumi electronic MR-J3- A Manual De Usuario

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12. OPTIONS AND AUXILIARY EQUIPMENT
 
12.3 FR-BU2-(H) brake unit 
POINT 
 
Use a 200V class brake unit and a resistor unit with a 200V class servo amplifier, 
and a 400V class brake unit and a resistor unit with a 400V 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 section 12.3.1. 
For executing a continuous regenerative operation, use FR-RC-(H) power 
regenerative converter or FR-CV-(H) power regenerative common 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.PA02 of the servo amplifier to "
01". 
When using the brake unit, always refer to the FR-BU2-(H) Brake Unit Instruction Manual.