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SIMOTICS S-1FK2 Servomotor 1FK2104-4AK (Shaft Height 40, 400 W)

Model 1FK2104-4AK..-..A0 / SIMOTICS S-1FK2 / Siemens (Official website) / Listed on page 46 of the document

High-dynamic servomotor with shaft height 40 and rated output of 400 W.

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SIMOTICS S-1FK2 Servomotor 1FK2104-4AK (Shaft Height 40, 400 W) on page 46 of Siemens "SINAMICS S210 サーボドライブシステム カタログ D 32 2017/12"
Source: Siemens「SINAMICS S210 サーボドライブシステム カタログ D 32 2017/12」page 46
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Specifications

Stall Torque 1.27 Nm
Instantaneous maximum torque 3.85 Nm
Rated output 0.4 kW
Rated rotational speed 3000 rpm
Maximum Rotational Speed 7400 rpm
Rotor moment of inertia J 0.35 kg cm2
Stall Current 2.4 A
Instantaneous maximum current 8.7 A
Rated torque 1.27 Nm
Rated current 2.4 A
Mass 2.05 kg
Mass (with brake) 2.9 kg

SIMOTICS S-1FK2 model comparison

Compare 9 models in the same series by specification.

Model Rated output Rated torque Instantaneous maximum torque Rated rotational speed Maximum Rotational Speed Rotor moment of inertia J Stall Torque Rated current
SIMOTICS S-1FK2 サーボモータ — — — — — — — —
1FK2102-0AG..-..A0 50 W — 0.56 Nm 3000 rpm 8000 rpm 0.0245 kg cm2 0.16 Nm —
1FK2102-1AG..-..A0 100 W — 1.11 Nm 3000 rpm 8000 rpm 0.036 kg cm2 0.32 Nm —
1FK2103-2AG..-..A0 200 W — 1.95 Nm 3000 rpm 8000 rpm 0.093 kg cm2 0.64 Nm —
1FK2103-4AG..-..A0 400 W — 4.05 Nm 3000 rpm 7300 rpm 0.139 kg cm2 1.27 Nm —
1FK2104-4AK..-..A0 This product 0.4 kW 1.27 Nm 3.85 Nm 3000 rpm 7400 rpm 0.35 kg cm2 1.27 Nm 2.4 A
1FK2104-5AK..-..A0 0.75 kW 2.4 Nm 7.6 Nm 3000 rpm 7100 rpm 0.56 kg cm2 2.4 Nm 4.35 A
1FK2203-2AG..-..A0 200 W — 1.85 Nm 3000 rpm 8000 rpm 0.2 kg cm2 0.64 Nm —
1FK2203-4AG..-..A0 400 W — 3.75 Nm 3000 rpm 7800 rpm 0.35 kg cm2 1.27 Nm —

How to choose AC Servo Motors

Points to check when selecting, with the values for this product (1FK2104-4AK..-..A0).

  1. 1. Select rated torque suited to continuous load

    This product: Rated torque 1.27 Nm

    Confirm that the RMS torque over the entire operating cycle is within the rated torque. Convert the load torque including the efficiency and reduction ratio of transmission elements such as ball screws and belts, then select with margin. Listed models range from 1.27 to 2.4 N·m.

  2. 2. Check maximum torque required for acceleration and deceleration

    This product: Instantaneous maximum torque 3.85 Nm

    Confirm that the peak torque required during acceleration and deceleration does not exceed the instantaneous maximum torque. Peak torque can only be sustained for a limited time, and the maximum current of the drive also sets an upper limit, so check the specifications of the matching amplifier as well.

  3. 3. Review load inertia ratio against rotor inertia

    This product: Rotor moment of inertia J 0.35 kg cm2

    If the load inertia moment converted to the motor shaft is too large relative to the rotor inertia moment J, response will drop and vibration may occur. Choose a low-inertia model for high-speed response, or a higher-inertia model for stable control of large inertia loads. Check the manufacturer's recommended permissible ratio.

  4. 4. Match required speed with maximum rotational speed

    This product: Maximum Rotational Speed 7400 rpm

    Convert the maximum feed speed of the machine into motor rotational speed and confirm it is within the maximum rotational speed. Torque decreases at high speed, so use the speed-torque characteristics to confirm that the required torque is available in the range above rated speed.

  5. 5. Match output capacity and mounting dimensions

    This product: Rated output 0.4 kW

    Since the drive capacity class is determined by rated output, confirm that the motor and amplifier are compatible. Also confirm that the flange size and shaft height allow mounting to the machine, and when replacing existing equipment, check the mounting holes and shaft diameter.

  6. 6. Confirm holding brake and operating environment

    For vertical axes, select a model with a holding brake to prevent falling during power failure. A model with a brake has greater mass and overall length. In environments exposed to dust or water, check the protection rating (such as IP64 or IP65), and where vibration or high/low temperatures are severe, also check the type of detector.

This guide was written by AI based on the listed products' documents and specification items.

About AC Servo Motors and all products

Description

Permanent magnet synchronous motor. Rated speed 3000 rpm, maximum speed 7400 rpm. Stall torque 1.27 Nm, maximum torque 3.85 Nm.

Features

  • High power density
  • IP64 (IP65 optional)
  • Holding brake optional

Applications

  • Packaging machines
  • Handling equipment
  • Loading units

FAQ

Q. What are the rated output and rated speed of the SIMOTICS S-1FK2 Servomotor 1FK2104-4AK (Shaft Height 40, 400 W)?
A. The rated output is 0.4 kW and the rated speed is 3000 rpm. The maximum speed is 7400 rpm.
Q. What are the applications and features of the 1FK2104-4AK?
A. Applications include packaging machines, handling equipment, and loading units. It features high power density, supports IP64 (IP65 optional), and a holding brake can be selected.
Q. What are the torque characteristics of the 1FK2104-4AK?
A. Stall torque is 1.27 Nm, instantaneous maximum torque is 3.85 Nm, and rated torque is 1.27 Nm.
Q. What are the current values and moment of inertia of the 1FK2104-4AK?
A. Stall current is 2.4 A, instantaneous maximum current is 8.7 A, and rated current is 2.4 A. The rotor moment of inertia J is 0.35 kg cm2.
Q. What is the mass of the 1FK2104-4AK, and what is it with the brake?
A. The mass is 2.05 kg, and 2.9 kg with the brake.

Written by AI based on the content of the source documents.

Source documents

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