✅ Model Code Explanation
| 분절 | 정의 |
| 6SE6440 | MM440 universal inverter 시리즈 |
| 2 | Built-in Basic Operator Panel (BOP), no AOP |
| 유 | 200~240V single-phase / three-phase universal input (1AC/3AC) |
| 기음 | No integrated EMC filter |
| 15 | 0.55kW 전력 등급 |
| 5AA1 | 표준 버전, filterless, frame size A |
📋 Key Technical Specifications
정격 출력: 0.55 kW (일정한 토크)
입력 전압: AC 200–240V ±10%, 47–63Hz, compatible with single-phase or three-phase input
정격 출력 전류: 3.0 에이
과부하 용량: 150% 60년대; 200% 3초 동안
보호 등급: IP20
전체 치수(H×W×D): 173 × 73 × 149 mm (Frame Size A)
순중량: 대략. 1.3 kg
주변 온도: -10 ~ +50℃ (no power derating)
제어 모드: V/F 제어, 벡터 제어, 내장 PID, Modbus RTU supported
Standard Equipment: BOP panel; no integrated EMC filter
📌 Product Lifecycle
MM440 discontinued in 2019, available only as spare parts. No mass-production new units. Stock new units or used refurbished units circulate in the market.
🔄 Replacement Selection
- Direct replacement series: G120 Inverter
추천: 6SL3210-1PB13-0UL0 (0.55kW 220V, without filter), BOP-2 panel to be ordered separately.
- Retrofit Note: Terminal definitions and parameter systems differ between MM440 and G120. Control logic and parameters require full re-commissioning.
🛠 Typical Applications
컨베이어 벨트, small fans & 물 펌프, 믹서, small conveying equipment, 포장 기계. Suitable for speed regulation of 0.55kW, 220V AC asynchronous motors.
📎 Optional Accessories
BOP: 6SE6400-0BP00-0AA1 (factory fitted)
AOP Advanced Operator Panel: 6SE6400-0AP00-0AA1
EMC 필터: 6SE6400-2FA00-6AD0
제동 저항기: Optional as required (usually unnecessary for 0.55kW low power)
⚠️ Troubleshooting Summary (General for MM440)
- F0001 Overcurrent: Motor short circuit, 손상된 케이블, 지락, power module failure
- F0002 Overvoltage: Rapid deceleration, grid surge; braking resistor may be required
- F0003 Undervoltage: Missing input phase, voltage drop
- F0011 Overtemperature: Blocked cooling channel, excessive ambient temperature, fan damage
HS코드
85044084 (Static converters, frequency inverters)
지멘스 6SE6440-2UC15-5AA1 (MM440, 220V 0.55kW) 응용 시나리오
핵심 기능: Single/three-phase 220V power supply, 벡터 제어, 내장 PID, 모드버스 RTU, stable speed regulation at low torque. Power limited to 0.55kW, only compatible with small-load motors, widely used for stand-alone small automation equipment retrofit and spare part replacement for legacy machines.
- Material Conveying (가장 일반적인)
- 소형 벨트 컨베이어, 롤러 컨베이어: Short packaging line conveyors, laboratory transport tables, small sorting branch lines. Soft start & soft stop prevent material slipping or tipping; multi-speed function available.
- Small hoists / miniature winches: Light-duty lifting mechanisms. MM440 vector control delivers stable low-speed torque for light-load lifting within 0.55kW power limit.
- 유체 장비 (팬 & 슬리퍼, PID for constant pressure/flow)
- 소형 원심 팬, duct exhaust fans: Workshop local exhaust, oven circulation fans; energy saving via variable speed drive.
- Mini water pumps, 계량 펌프: 일정한 압력의 물 공급, chemical dosing pumps. Built-in PID performs closed-loop constant pressure/flow control with 4-20mA analog feedback.
Advantage for low-flow cases: 220V single-phase power input, preferred where 380V three-phase power is unavailable on site.
III. 포장 & Light Industrial Machinery
- 소형 포장 기계: Film feeding for pillow packaging, label feed motors, screw bottle separation drive. Smooth start-stop and PLC-linked speed control.
- Food light industry equipment: Small mixing tanks, 블렌더, extrusion actuators (0.55kW small mixing motors), auxiliary drives for food production lines.
- Textile auxiliary machines: Small rewind/unwind units for simple tension control.
- 공작기계 & Automation Auxiliary Equipment
- Machine tool auxiliary drives: Coolant pumps, small lubrication pumps, auxiliary table feed motors.
- 로터리 테이블, indexing turntables: Stable low-speed rotation for point positioning.
- Automation training benches / teaching equipment: Classic MM440 teaching unit for colleges, used to learn vector control, Modbus communication and multi-speed programming.
- 공조, 건물 & Other Auxiliary Systems
- Small air damper actuators, 신선한 공기 단위
- Gate valves, small roller shutter drives: Speed control for workshop small doors and automatic roller shutters
- 레거시 장비의 예비 부품 교체: Retrofit for original equipment fitted with this MM440 model. The series is discontinued, so it is mostly used for maintenance replacement.
✅ Selection Prerequisites & 제한사항
전원공급장치: Site available power is AC220V (single-phase input can drive three-phase motors)
모터: Rated motor power ≤0.55kW three-phase asynchronous motor
강점: Good low-speed torque with vector control, equipped with BOP panel, 내장 PID, relay/analog I/O, 모드버스 통신; more capable than basic simple inverters
❌ Not suitable: Heavy shock loads, high-power machinery, main hoisting winches, continuous high-overload operating conditions
Supporting Control Schemes
Local speed setting via panel: Manual frequency adjustment through BOP
Multi-speed via terminals: DI digital terminals for preset speed levels
Analog closed-loop: AI connected to pressure/flow sensors, PID automatic constant pressure/flow regulation
PLC 통신: Modbus RTU for PLC to read/write frequency, running status and fault codes
Siemens 6SE6440-2UC15-5AA1 (MM440 0.55kW 220V, No Built-in EMC Filter) Replacement Models Summary
Original unit features: AC200~240V single/three-phase input, 벡터 제어, PID, 모드버스 RTU, 4DI/2AI/2AO, 2 릴레이 출력; 단종, no new original production.
선택 우선순위: Siemens official successor models → Siemens economy models → Domestic vector inverters
- Siemens Officially Recommended Replacements (첫 번째 선택, Closest function to MM440)
- 시나믹스 G120 (모듈식, function matches MM440, for complex original control: PID, 다중 속도, 모드버스)
전력 모듈: 6SL3210-1PB13-0UL0 (200-240다섯, 0.55kW, no integrated filter, output current 3A consistent with original unit)
Matching Control Unit: CU240E-2 (6SL3244-0BB12-1BA1), optional BOP-2 panel (6SL3255-0AA00-4CA1)
✅ 장점: Sensorless vector support, 내장 PID, 모드버스 RTU, I/O count close to MM440; expandable communication
⚠️ Note: Terminal definitions and parameter codes are fully incompatible; parameters cannot be copied directly. Re-commissioning required, cutout dimensions differ.
- G120C Compact Integrated Type (All-in-one, simple installation, 공간 절약, preferred for fans/conveyors/pumps)
주문번호: 6SL3210-1KE11-8UB2 (220V 0.55kW, no filter, integrated built-in control unit, BOP interface available)
✅ All-in-one design, separate power module + CU not required. Ideal for cabinet retrofit with limited space; STO safety function integrated
⚠️ I/O count slightly less than original MM440; evaluate carefully for complex logic
- 시나믹스 V20 (이코노미형, simple speed regulation with budget constraints)
주문번호: 6SL3210-5BB11-2UV1 (220다섯, 0.55kW, no integrated filter)
✅ Lower cost, supports V/F / basic vector, 모드버스, 다중 속도; suitable for fans, pumps and simple conveyors without high-precision low-speed torque requirement
❌ 제한사항: Vector performance weaker than MM440/G120, not for low-speed heavy-load applications, fewer I/O points
- Same-series Spare Part Option (Not recommended for new projects, emergency maintenance only)
Stock MM440 original unit: 6SE6440-2UC15-5AA1 stock new / second-hand refurbished
위험: Limited supply, high price, no warranty, ageing risk for used units. Only for short-term equipment transition, not for new projects.
III. 국내 교체 (Cost-down retrofit, 벡터 제어, 220V single-phase input driving three-phase motors)
Applicable for retrofit projects where wiring and PLC program modification are permitted, pursuing cost advantages
- Inovance MD600 / MD380 220V 0.55kW: 벡터 제어, 모드버스, PID, abundant I/O
- INVT GD20: General vector inverter, widely used for packaging & conveying machinery
- Delta VFD-EL / VFD-M: Low-power 220V single-phase input, basic speed regulation scenarios
📌 Selection Comparison Table
| 모델 | 주문 번호. | 전압 | 힘 | Vector Performance | 애플리케이션 |
| MM440 (원래의) | 6SE6440-2UC15-5AA1 | 220다섯 | 0.55kW | High-performance vector | 운반, 혼입, constant pressure pump, 다중 속도 & PID closed-loop |
| Modular G120 | 6SL3210-1PB13-0UL0+CU240E-2 | 220다섯 | 0.55kW | High-performance vector | Primary functional replacement, preferred for legacy PID & communication projects |
| Integrated G120C | 6SL3210-1KE11-8UB2 | 220다섯 | 0.55kW | Standard vector | 컴팩트 캐비닛, 팬, 벨트 컨베이어, STO 안전이 필요합니다 |
| Economy V20 | 6SL3210-5BB11-2UV1 | 220다섯 | 0.55kW | Basic vector | Simple speed control, 팬 & 슬리퍼, budget-sensitive |
⚠️ Critical Retrofit Notes
- Power Supply Compatibility: The original unit accepts single-phase 220V input for three-phase motor drive. G120C/G120/V20 models of the same specification also support this mode.
- 컷아웃 치수: Frame A cutout for MM440 differs from G120/V20. Cabinet cutout modification is usually required.
- Parameter Incompatibility: MM440 P-parameter system is independent from G120/V20; parameter upload/download cannot be performed directly.
- EMC: Original unit has no integrated filter. Select filterless variant for replacement. Install external EMC filter if noise immunity is needed.
- 제동: Evaluate braking resistor sizing if the machine requires rapid stopping.
✅ Quick Selection Guidance
Original machine uses low-speed vector, PID constant pressure, 모드버스 통신, multi-speed → Select G120 (modular CU240E-2)
Simple fan/conveyor application, all-in-one unit preferred for compact cabinet → G120C
Basic speed regulation only, no complex closed loop, budget priority → V20
Cost reduction project, domestic commissioning acceptable → Inovance / INVT and other domestic vector inverters
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