Technical Specifications

FAQ

1. What is the rated speed and torque of 1FK7100-5AF71-1SG0?

The 1FK7100-5AF71-1SG0 has a rated speed of 3000 rpm, a rated torque of 12 Nm, and a static torque of 18 Nm. These characteristics make the motor suitable for industrial motion-control applications requiring stable rotational speed, controlled acceleration, and accurate positioning. When selecting the motor, the continuous load torque, peak torque, acceleration profile, and load inertia should be evaluated together to ensure that the motor operates within its permitted working range.

2. What type of feedback system does 1FK7100-5AF71-1SG0 use?

The 1FK7100-5AF71-1SG0 uses a multipole resolver with P = 4. The resolver supplies rotor position information to the servo drive for closed-loop speed and position control. During installation, the resolver cable, connector, shielding, and wiring should be checked carefully. Incorrect feedback connections can result in abnormal commutation, unstable motor operation, or resolver-related drive alarms.

3. What cooling method is used by 1FK7100-5AF71-1SG0?

This servo motor uses natural cooling and does not require a separate external cooling fan for normal operation. Heat generated by the motor is dissipated through its housing into the surrounding environment. Adequate ventilation should therefore be maintained around the motor during installation. For continuous high-load applications or installations in high-temperature environments, the operating duty cycle and thermal conditions should be evaluated carefully to avoid excessive temperature rise.

4. Does 1FK7100-5AF71-1SG0 have a holding brake?

The 1FK7100-5AF71-1SG0 configuration is supplied without a holding brake. This should be considered when the motor is used for vertical axes, suspended loads, or applications where the machine must remain mechanically secured after power is removed. The servo motor itself should not be relied upon to hold a stationary load after shutdown. Where load retention is required, a suitable mechanical brake or external holding mechanism should be incorporated into the machine design.

5. What mounting arrangements are available for 1FK7100-5AF71-1SG0?

The motor is designed for IM B5 flange mounting and can also be installed in IM V1 and IM V3 mounting arrangements. Before installation, the machine-side flange, fixing bolts, shaft coupling, and alignment should be checked. Correct mechanical alignment helps reduce vibration, bearing stress, and unnecessary mechanical wear. The driven equipment should also be checked to ensure that the applied radial and axial loads remain within the allowable limits for the motor.

6. What should be checked when connecting 1FK7100-5AF71-1SG0 to a servo drive?

The servo drive should be checked for compatibility with the motor’s rated power, rated current, rated speed, torque characteristics, and resolver feedback system. Both the power connection and feedback connection must be wired correctly according to the applicable system configuration. The motor connector can be rotated by 270 degrees, which provides flexibility during installation. However, the cables should still be routed carefully to prevent excessive bending, mechanical stress, or electromagnetic interference that could affect motor or feedback performance.

7. How can resolver-related faults on 1FK7100-5AF71-1SG0 be diagnosed?

When a resolver-related fault occurs, first inspect the resolver cable and connectors for loose contacts, damaged insulation, incorrect wiring, or inadequate shielding. The feedback configuration in the servo drive should then be checked to ensure that the correct motor and resolver parameters have been entered. If the wiring and configuration are correct but the feedback signal remains abnormal, the resolver and feedback circuit should be tested using appropriate diagnostic equipment. Comparing the fault behavior while the motor is stationary and during low-speed operation can also help determine whether the problem originates from the feedback circuit, electrical connections, or mechanical system.

8. What should be considered when replacing 1FK7100-5AF71-1SG0?

Before replacing the motor, the complete order number and key electrical and mechanical characteristics should be verified. Particular attention should be given to the resolver feedback configuration, rated speed, rated torque, shaft design, mounting arrangement, cooling method, protection rating, and brake configuration. The 1FK7100-5AF71-1SG0 uses a multipole resolver, plain shaft, natural cooling, and no holding brake, so these characteristics should match the existing machine configuration. After installation, the motor and servo drive parameters should be checked, followed by feedback verification and controlled low-speed commissioning before the machine is returned to normal operation.