RD51.2-4B-015-L-A1-FW
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MPN: R911201114
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The RD51.2-4B-015-L-A1-FW drive controller features vector control and V/f control with a rated power of 15 kW. Manufactured by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series, it has an IP20 enclosure protection rating and operates on a 3-phase 400V input. It weighs approximately 13 kg.
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Product Description:
Rexroth Indramat built the RD51.2-4B-015-L-A1-FW Drive Controller for the needs of industrial automation services. It supports a rated motor output of 15 kilowatts. The supply voltage of the device is three-phase between 380 to 480 volts AC. Voltage tolerance is ~10 percent for proper operation.
The output frequency of RD51.2-4B-015-L-A1-FW drive controller reaches up to 250 Hz at 4 kHz switching frequency. The nominal current of the drive is 30 amperes at this frequency. The peak current for 60 seconds is rated at 39 amperes. For one second peak current rises to 51 amperes. The maximum peak current for 0.5 seconds is 60 amperes. The drive reaches up to 500 Hz output when the frequency is at 8 kHz. The supplied current under 8 kHz is limited to 25 amperes. The peak current for 60 seconds is 33 amperes. This peak value of current increases up to 43 amperes for 1 sec. The highest maximum current for 0.5 seconds is 50 amperes. The rated output at 8 kHz is 16 kVA. The peak power rating is 22 kVA at 60 seconds. The RD51.2-4B-015-L-A1-FW drive controller has a cooling air requirement of 0.05 cubic meters per second. The unit weight with forced air cooling is 11.3 kilograms.
The RD51.2-4B-015-L-A1-FW drive controller uses forced air or panel cooling based on installation. Mechanical design includes IP20 protection with plug connection. This protection level complies with EN 60529 standards. The internal chopper handles a continuous power of 7.5 kilowatts. The minimum resistance supported by the chopper is 17.5 ohms. The power output is 20 kVA at a frequency measurement of 4 kHz. Peak power at 60 seconds is 26 kVA under the same frequency. The weight of the controller is 10.3 kilograms with a heat dissipation panel
Frequently Asked Questions about RD51.2-4B-015-L-A1-FW:
Q: Why is 8 kHz switching frequency supported by the RD51.2-4B-015-L-A1-FW?
A: The RD51.2-4B-015-L-A1-FW supports 8 kHz switching to reduce motor noise and improve output waveform smoothness.
Q: What's the function of the internal chopper in the RD51.2-4B-015-L-A1-FW?
A: The RD51.2-4B-015-L-A1-FW uses an internal chopper to manage regenerative energy and control braking power efficiently.
Q: How does forced air cooling improve performance of the RD51.2-4B-015-L-A1-FW?
A: The RD51.2-4B-015-L-A1-FW uses forced air cooling to maintain thermal stability under high-power or prolonged operations.
Q: Why is the plug connection mechanically beneficial in the RD51.2-4B-015-L-A1-FW?
A: The RD51.2-4B-015-L-A1-FW uses plug-in connections for faster replacement, simplified wiring, and secure mechanical fit during vibration.
Q: How does switching frequency impact current rating of the RD51.2-4B-015-L-A1-FW?
A: In RD51.2-4B-015-L-A1-FW, higher switching frequency reduces current handling to prevent overheating and extend component lifespan.
