SF-A4.0230.030-14.030
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The SF-A4.0230.030-14.030 is part of Bosch Rexroth Indramat's SF Servo Motors series and features a precision of ±20 angular seconds with 8 million increments per revolution. It has a locked-rotor torque of 22 Nm, a torque constant of 1.57 Nm/A, and a rated speed of 3000 rpm. The motor length without a holding brake is 341 mm.
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Product Description:
The SF-A4.0230.030-14.030 is a Brushless servomotor that is part of the SF-A4 series and has braking and motion control specifications. This design is ideal for applications requiring the prevention of uncontrolled movement because it includes fail-safe position retention and dynamic servo performance. The design includes absolute position feedback and an electrically released holding brake.
The motor generates 18 Nm of braking torque at temperatures as high as 120°C, due to its torque constant rating of 1.57 Nm per ampere. The mechanical specifications of SF-A4.0230.030-14.030 servo motor include a rotor inertia of 30×10⁻⁴ kg·m², an engagement length of 50mm, and a 24mm diameter output shaft. The absolute encoder prevents position reference loss during power cycles, ensuring that system coordinates are kept without the need for reactivation. Under locked rotor conditions, the current draw is 14A, and the brushless design ensures consistent performance over the whole operating lifetime. The electromechanical brake operates as a routinely engaged mechanism that activates when the power is interrupted. Brushless operation improves power conversion efficiency while also eliminating the need for maintenance due to commutator wear. The ability to depend on high-temperature brakes ensures consistent performance even in harsh environments.
The absolute encoder keeps track of position regardless of power state, and the holding brake keeps the load in place when stationary, providing a variety of technical advantages from this configuration. The given shaft diameters can support standard couplings and mechanical connectors. The 24V brake coil has a voltage range of ±10% and consumes 0.7A nominal current, with a power supply ripple tolerance of 5%. These combined characteristics show the motor's remarkable performance in vertical axis applications, safety-critical positioning systems. The motor's electrical and mechanical features allow it to be connected to modern digital drive systems while also providing important safety functions.
Frequently Asked Questions about SF-A4.0230.030-14.030:
Q: How does SF-A4.0230.030-14.030 maintain position accuracy?
A: It includes an encoder with ±20 angular seconds precision. This ensures accurate position control in synchronized motion systems.
Q: Why does SF-A4.0230.030-14.030 have 1.57 Nm/A?
A: The torque constant of 1.57 Nm/A ensures efficient torque delivery. It supports consistent motor output per unit current supplied.
Q: Does SF-A4.0230.030-14.030 include optional brake support?
A: Yes, it supports an optional holding brake. The brake provides 18 Nm torque and operates at 24 V ±10% supply.
Q: How does SF-A4.0230.030-14.030 minimize system backlash?
A: The shaft size Ø24 × 50 mm supports direct coupling. This reduces backlash and enables precise torque transmission.
Q: Do SF-A4.0230.030-14.030 encoders offer flexible options?
A: Yes, the motor offers single-turn and multi-turn encoder types. These allow application-specific position tracking flexibility.
