Product Description
The HLR01.1N-0470-N11R7-A-007-NPNN is a brake resistor manufactured by Bosch Rexroth to protect industrial machines from overvoltage during machine braking. When power is removed from a motor, the load on the motor is reduced, causing it to turn at a faster rate. The motor acts as a generator and creates a large amount of electrical energy that flows back into the servo drive's power circuit. The brake resistor absorbs the excess electrical voltage coming into the servo drive and ensures the voltage in the servo drive is within the voltage tolerance range. The excess voltage absolved by the brake resistor is converted into thermal energy and is safely dissipated through the slits present in the resistor's housing.
The HLR01.1N-0470-N11R7-A-007-NPNN servo drive weighs about 4.5 Kilograms and produces a continuous output of about 470 kilowatts. The drive resistor's resistance is about 11.7ohms, and the nominal bus voltage of the resistor is DC 700 volts. The braking resistor can absolve a regenerative power of up to 56.00 kilowatts. The resistor also has a maximum cycle time of 120.00 seconds and a maximum allowed on-time duty of 1.00 seconds.
During the installation of the HLR01.1N-0470-N11R7-A-007-NPNN brake resistor, a minimum amount of space should be maintained between the drive and other machine accessories; this space allows the drive to dissipate the heat it emits easily without causing any damage to any other machine accessory. For the HLR01.1N-0470-N11R7-A-007-NPNN brake resistor, the minimum distance that should be maintained at the top of the device and below the device is 1000 and 200 millimeters, respectively. The resistor is produced according to the IEC 60529 IP IP20 degree of protection. It has been repeatedly tested to ensure its safe for industrial use anywhere in the world. This brake resistor can be shipped globally with a one-year warranty period from Wake Industrial.