Siemens Servo Motor 1FK2104-5AF01-1MA0

Item	ค่า
แบบอย่าง	1FK2104-5AF01-1MA0
Series	SIMOTICS S-1FK2 HD (High Dynamic)
กำลังไฟพิกัด	0.75กิโลวัตต์ (at 380–480V, nN=3000rpm)
Rated Torque	2.4Nm
Rated Speed	3000รอบต่อนาที
Max Torque	Approx. 7.2Nm (3x rated)
Max Speed	6000รอบต่อนาที
แรงดันไฟฟ้า	3-phase 380~480V
Encoder	22-bit + 12-bit multi-turn absolute encoder (4,194,304ppr)
ระดับการป้องกัน	IP64
Rotor Inertia	Approx. 1.4×10⁻⁴kg·m² (Low Inertia)
Mounting Flange	90mm standard flange
Compatible Drive	SINAMICS S210/S120

2.1 Top Replacement: MR-J5 Series (Latest Generation, 400V Class)

Mitsubishi Model	Match Score	Key Features
HK-KT7M4UW	★★★★★	400วี, 0.75กิโลวัตต์, 2.4Nm, 3000รอบต่อนาที, max torque 8.4Nm, ความเฉื่อยต่ำ, 26-bit absolute encoder, IP65, for MR-J5-700A
HK-KP7M4UW	★★★★☆	400วี, 0.75กิโลวัตต์, 2.4Nm, 3000รอบต่อนาที, max torque 7.2Nm, ultra-low inertia, 26-bit absolute encoder, IP65

2.2 Standard Replacement: MR-J4 Series (Proven & Stable, 400V Class)

Mitsubishi Model	Match Score	Key Features
HG-SN702BJ-S100	★★★★☆	400วี, 0.75กิโลวัตต์, 2.4Nm, 3000รอบต่อนาที, max torque 7.2Nm, medium inertia, 22-bit absolute encoder, IP65, for MR-J4-70A
HF-JP734B	★★★★	400วี, 0.75กิโลวัตต์, 2.39Nm (≈2.4Nm), 3000รอบต่อนาที, max torque 7.16Nm, IP67, with brake, for MR-J3/J4

2.3 Economic Replacement: MR-JE Series (Cost-Effective, 200V Class)

Mitsubishi Model	Match Score	Key Features
HG-KN73BJ-S100	★★★★	200วี, 0.75กิโลวัตต์, 2.4Nm, 3000รอบต่อนาที, max torque 7.2Nm, ความเฉื่อยต่ำ, 20-bit absolute encoder, IP65, for MR-JE-70A/B
HG-KR73BJ	★★★★	200วี, 0.75กิโลวัตต์, 2.4Nm, 3000รอบต่อนาที, max torque 7.2Nm, ความเฉื่อยต่ำ, 20-bit absolute encoder, IP65, with brake

III. Core Parameter Comparison (Top Models vs Original)

Item	Siemens 1FK2104-5AF01-1MA0	Mitsubishi HK-KT7M4UW (MR-J5)	Mitsubishi HG-SN702BJ-S100 (MR-J4)
Power/Torque	0.75กิโลวัตต์ / 2.4Nm	0.75กิโลวัตต์ / 2.4Nm	0.75กิโลวัตต์ / 2.4Nm
แรงดันไฟฟ้า	380~480V	400วี (380~480V compatible)	400วี (380~480V compatible)
Speed	3000รอบต่อนาที (max 6000rpm)	3000รอบต่อนาที (max 6700rpm)	3000รอบต่อนาที (max 6000rpm)
Max Torque	7.2Nm	8.4Nm (Higher Dynamics)	7.2Nm (Same)
Encoder	22+12bit multi-turn absolute	26bit absolute (Higher Precision)	22bit absolute (Same Precision)
การป้องกัน	IP64	IP65 (Better)	IP65 (Better)
Inertia	Low inertia (1.4×10⁻⁴kg·m²)	Low inertia (2.11×10⁻⁴kg·m²)	Medium inertia (2.5×10⁻⁴kg·m²)
Flange	90มม	90มม (Compatible)	90มม (Compatible)

Original motor: 380~480V → prefer Mitsubishi 400V class (HK-KT7M4UW, HG-SN702BJ)

For 200V models (HG-KN73BJ), a 380→200V transformer is required.

1FK2 is high dynamic & low inertia → prefer Mitsubishi low-inertia series (HK-KT/HK-KP/HG-KN)

Medium-inertia series (HG-SN) for higher load inertia applications.

Original: absolute encoder → select Mitsubishi absolute type (suffix “J” or “UW”)

MR-J5 supports battery-free absolute position retention.

90mm standard flange: fully interchangeable

Check shaft diameter (φ12mm) and keyway; use adapter coupling if needed.

Final Selection Recommendations
New projects / full upgrade: Choose HK-KT7M4UW (MR-J5) – latest tech, superior performance, supports Industry 4.0 & EtherCAT.
Existing system retrofit: Choose HG-SN702BJ-S100 (MR-J4) – stable, compatible, cost-effective.
Budget-sensitive applications: Choose HG-KN73BJ-S100 (MR-JE) – high cost-performance for general use.

0.75กิโลวัตต์ / 2.4Nm / 400วี Servo Motor – Global Brand Cross-Reference

Reference: Siemens 1FK2104-5AF01-1MA0

Profile: 400V class, 0.75กิโลวัตต์, 2.4Nm, 3000รอบต่อนาที, ความเฉื่อยต่ำ, multi-turn absolute encoder, 90mm flange

Closest to 1FK2 in performance, ขนาด, dynamics; battery-free absolute; top choice for new projects.

Low-inertia, high stability; preferred for heavy-duty and retrofit applications.

European standard; excellent mechanical & communication compatibility for European equipment.

Cost-effective, compact; ideal for small-to-medium machines and volume applications.

High precision & reliability; suitable for high-end equipment and factory automation.

III. Mandatory Replacement Rules (Must Read)

Voltage must match: Original = 400V → use 400V models only; do NOT use 200V motors directly.
Torque first: Rated torque ≥ 2.4Nm; prefer low inertia for dynamics.
Encoder consistency: Use multi-turn absolute encoders to avoid position loss.
Mounting compatibility: All use 90mm flange, φ12mm shaft – direct drop-in replacement.