SD-B5.250.015-04.000
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The Bosch Rexroth SD-B5.250.015-04.000 permanent-field servomotor is equipped with a disk brake. The motor has a torque rating of 25 Nm. It is cooled by thermal radiation and natural convection.
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Product Description:
The Bosch Rexroth SD-B5.250.015-04.000 is an efficient permanent-field servomotor designed specifically for use in industries. The device is equipped with a permanent-magnet, backlash-free disk brake that operates based on the fail-safe principle. The control voltage required for releasing the brake is 24 V DC with a tolerance of ± 5%. The brake cannot be reliably released if the voltage tolerance is not properly observed. It should be noted that this disk brake is not a working brake. Extreme caution should be exercised when handling the motor. Its housing surface must not be touched when it is live because it turns very hot and can cause injury.
The braking resistors of the SD motor have a protection rating of IP 20. It has a nominal speed of 1500 rpm. The torque constant of the device is 1.94 Nm/A and its winding resistance is 1.26 Ohm. The motor has an electrical time constant of 21.32 ms at 20°C. Without the disk brake, the unit weighs 58.6 kg. The disk brake weighs 3.5 kg. The brake has a holding torque of 36 Nm. The motor is well-suited for stringent requirements due to the design of its shaft. The power connection to the device must be disconnected before making any connection to the device.
The connectors of the SD motor have plastic protective caps. These caps are secured in place with aluminum securing rings. The tacho of the unit is meant for velocity feedback. The rotor position of the device is recognized by the tacho and commutation sensors. The product’s total power loss is created in its stator winding. The user is not allowed to dismantle the motor. Only its tacho board may be removed for replacement.
Frequently Asked Questions about SD-B5.250.015-04.000:
Q: Where is the temperature monitoring of the SD motor evaluated?
A: The temperature monitoring of the SD motor is evaluated in the inverter.
Q: Are mating connectors part of the package of the SD motor?
A: No, mating connectors do not come with the SD motor package. If required, they should be ordered separately.
Q: How many supply modules are required for the SD motor to function?
A: At least one supply module is required for the SD motor to function.
Q: How is the thermal overload prevented in the SD motor?
A: The thermal overload in the SD motor is prevented by the NTC thermistor present in the windings.
Q: What is the material in the permanent magnets in the SD motor?
A: The permanent magnets in the SD motor consist of ferrite material.
