2. Type Code Explanation

• 1FK7: SIMOTICS S compact servo motor series

• 103: Frame size 100, length 3

• 5AF71: Winding/voltage/speed version (400 V, 3000 rpm)

• 1EH0: Shaft (plain), flange (IM B5), encoder (EnDat absolute), brake (with), protection (IP64)

3. Technical Specifications

Electrical

• Rated power: 4.4 kW (100 K)

• Rated voltage: 3AC 400 V

• Rated speed: 3000 rpm

• Max speed: 5000 rpm

• Rated torque: 36 Nm (100 K)

• Peak torque: 72 Nm (2× overload)

• Encoder: Absolute encoder, EnDat 2.2, 2048 ppr

• Brake: Integrated holding brake, 24 V DC, spring‑applied

Mechanical & Environmental

• Frame size: 100 mm

• Mounting: IM B5 (IM V1/V3) flange

• Shaft: Plain shaft, tolerance N

• Protection class: IP64

• Cooling: Natural convection

• Insulation class: F (155 °C)

• Operating temperature: 0 °C to +40 °C

• Storage temperature: −20 °C to +70 °C

• Weight: Approx. 12.5 kg

4. Encoder (EnDat 2.2 Absolute)

• Type: Multi‑turn absolute encoder

• Interface: EnDat 2.2 (no Drive‑CLiQ)

• Resolution: 2048 pulses/rev

• Function: Provides position, speed, and commutation signals

• Absolute position: Retained after power‑off (no battery required)

• Note: 10% performance reduction due to absolute encoder

5. Holding Brake

• Type: Spring‑applied, electrically released

• Voltage: 24 V DC (±10%)

• Holding torque: Matched to motor rated torque (36 Nm)

• Application: Holds vertical loads, prevents axis drop during power‑off

6. Mechanical Data

• Flange: Standard IM B5, Ø200 mm

• Shaft diameter: Ø28 mm, plain (no keyway)

• Connector: Power/signal plug rotatable 270°

• Vibration grade: R/A

7. Application

• KUKA robot axes (external and standard)

• Machine tool feed spindles

• High‑speed handling and packaging systems

• Siemens SINAMICS S110/S120 drive systems

8. Installation Instructions

1. Mount via IM B5 flange; avoid mechanical shock to the shaft.

2. Align coupling/gearbox precisely to prevent radial/axial overload.

3. Use shielded power and encoder cables; ensure EMC grounding.

4. Maintain ≥50 mm clearance around the motor for natural cooling.

5. Observe minimum cable bending radius to prevent fatigue.

9. Wiring

• Power: U, V, W, PE (3‑phase)

• Brake: +24 V DC, 0 V DC

• Encoder: EnDat signals, 5 V DC power, shield

10. Safety Instructions

• Disconnect all power before wiring or maintenance.

• Wait 5 minutes after power‑off for capacitors to discharge.

• Do not run the motor at no load for extended periods.

• Do not disassemble the encoder or brake.

• Ensure reliable protective earth (PE) connection.

11. Maintenance

• Routine: Check cable tightness, insulation, and running noise.

• Periodic: Verify brake operation and encoder signal quality.

• Cleaning: Keep motor surface free of dust and debris.

12. Troubleshooting

• No rotation: Check power wiring, brake release signal, drive enable.

• Position deviation: Check encoder cable and EnDat communication.

• Overheat: Check overload, blocked ventilation, or bearing wear.

• Brake not releasing: Check 24 V DC supply and wiring.