SINAMICS G120X Vector Frequency Inverter for Pumps & Fans
SINAMICS G120X, a new addition to the proven SINAMICS inverter family, is ideally suited for pump and fan applications in infrastructure, water/wastewater treatment, building automation, and industrial settings. It delivers exceptional performance with outstanding simplicity, reliability, and energy efficiency.
Core Features for Pump & Fan Applications
| Feature Category |
Key Advantages |
| Scenario-Optimized Design |
- Built-in pump/fan-specific control algorithms (variable torque load optimization, automatic energy-saving mode)
- Supports constant pressure/flow/liquid level control, suitable for water systems, HVAC, etc.
- Integrated PID regulator and sleep/wake function to reduce no-load energy consumption
|
| High Reliability & Environmental Adaptability |
- Wide voltage range (220V-690V), compatible with 50/60Hz global power grids
- Optional IP21/IP55 protection class, supports 3C3 anti-corrosion coating, resistant to salt spray and dust
- Operating temperature range: -10℃-60℃, adapting to humid Southeast Asian and high-temperature Middle Eastern conditions
- Built-in multi-layer protection (overcurrent, overvoltage, phase loss, overload), MTBF > 100,000 hours
|
| Ultimate Energy Saving & Efficiency |
- Vector control technology, energy saving rate up to 15%-30% (compared to fixed-speed operation)
- Optional energy regeneration function, suitable for high-power pump/fan energy-saving retrofits
- Low harmonic design (THD < 3%), compliant with EU EN 50160 and North American IEEE 519 grid standards
|
| Ease of Use & Integration |
- Standard BOP-2 operation panel with multi-language support
- Parameter cloning simplifies batch commissioning
- Compatible with mainstream buses (PROFINET, Modbus, EtherNet/IP)
- Modular structure for easy installation and maintenance; high spare parts commonality
|
| Global Compliance & Certifications |
- Certified by CE, UL, cUL, ATEX, SASO, etc.
- Meets access requirements in EU/North America/Middle East/Southeast Asia
- Compatible with RoHS and REACH environmental standards
|
Technical Specifications
| Parameter Category |
Key Specs |
Notes |
| Power Supply |
3AC 380-480 V (-20%/+10%), 0.75-560 kW; 3AC 500-690 V (-20%/+10%), 3.0-630 kW; Mains freq: 47-63 Hz |
Rated power varies by frame size; overload: typical 110%/60s, 100%/240s |
| Output |
Output freq: 0-550 Hz; PWM carrier freq: configurable (typ. 4-16 kHz); 3AC output |
Carrier freq adjustment balances noise and thermal performance |
| Control Modes |
V/F (linear, quadratic, FCC, ECO), sensorless vector control (SLVC); integrated PID |
Optimized for variable torque loads (fans/pumps); supports constant P/Q/level |
| Environmental |
Ambient temp: -20 °C to +60 °C (derate above +45 °C); Protection: IP20 standard, IP21 optional |
PROFINET/EtherNet/IP variants may have derate temp limit at +55 °C |
| I/O (Standard) |
Digital inputs: 6; Digital outputs: 2 (changeover); Analog I/O: AI/ AO (typ. 0-10 V/4-20 mA); expandable via modules |
Suitable for local control, interlock, and process feedback |
| Communication |
PROFINET, EtherNet/IP, PROFIBUS, Modbus RTU/USS, BACnet MS/TP; optional Wi‑Fi via SAM |
Seamless integration with TIA, Rockwell, and building automation systems |
| Safety |
STO (SIL 3) via terminals; built‑in overcurrent/overvoltage/phase loss/overload protection |
Essential for safe shutdown and system reliability |
| Certifications |
CE, UL, cUL, ATEX, SASO; RoHS, REACH compliant |
Meets global access requirements for municipal, HVAC, and industrial projects |
| Key Functions |
Sleep/wake, energy-saving mode, multi-pump control, cavitation protection, fire mode |
Dedicated to pump/fan applications, reducing no-load energy consumption |
Product Models & Applications
| Order Number |
Power (kW) |
Voltage Class |
Frame Size |
Communication |
Application Scenarios |
| 6SL3220-3YE10-0AF0 |
0.75 |
3AC 380-480 V |
FSA |
PN/ENIP |
Small fans/pumps, building HVAC |
| 6SL3220-3YE12-0AF0 |
1.1 |
3AC 380-480 V |
FSA |
PN/ENIP |
Small fans/pumps, building HVAC |
| 6SL3220-3YE14-0AF0 |
1.5 |
3AC 380-480 V |
FSA |
PN/ENIP |
Small fans/pumps, building HVAC |
| 6SL3220-3YE18-0AF0 |
3.0 |
3AC 380-480 V |
FSA |
PN/ENIP |
Small fans/pumps, building HVAC |
| 6SL3220-3YE20-0AF0 |
4.0 |
3AC 380-480 V |
FSB |
PN/ENIP |
Medium-small pump sets, ventilation fans |
| 6SL3220-3YE22-0AF0 |
5.5 |
3AC 380-480 V |
FSB |
PN/ENIP |
Medium-small pump sets, ventilation fans |
| 6SL3220-3YE24-0AF0 |
7.5 |
3AC 380-480 V |
FSB |
PN/ENIP |
Medium-small pump sets, ventilation fans |
| 6SL3220-3YE26-0AF0 |
11.0 |
3AC 380-480 V |
FSC |
PN/ENIP |
Industrial fans, booster pumps |
| 6SL3220-3YE30-0AF0 |
15.0 |
3AC 380-480 V |
FSC |
PN/ENIP |
Industrial fans, booster pumps |
| 6SL3220-3YE32-0AF0 |
22.0 |
3AC 380-480 V |
FSD |
PN/ENIP |
Industrial fans, circulating pumps |
| 6SL3220-3YE36-0AF0 |
37.0 |
3AC 380-480 V |
FSD |
PN/ENIP |
Industrial fans, circulating pumps |
| 6SL3220-3YE40-0AF0 |
55.0 |
3AC 380-480 V |
FSE |
PN/ENIP |
Large fans, sewage pumps |
| 6SL3220-3YE44-0AF0 |
90.0 |
3AC 380-480 V |
FSF |
PN/ENIP |
Large fans, sewage pumps |
| 6SL3220-1YE56-0CP0 |
355.0 |
3AC 380-480 V |
FSJ |
PROFI |
Municipal sewage, large pump stations |
| 6SL3220-1YE60-0CP0 |
450.0 |
3AC 380-480 V |
FSJ |
PROFI |
Municipal sewage, large pump stations |
| 6SL3230-1YH44-0CB0 |
90.0 |
3AC 500-690 V |
FSF |
MODBUS/BACnet |
690 V industrial fans/pumps |
| 6SL3230-1YH56-0CB0 |
355.0 |
3AC 500-690 V |
FSJ |
MODBUS/BACnet |
690 V large pump stations/fans |
Industry Applications
| Industry/Sector |
Typical Scenarios |
Core Advantages |
| Municipal Water/Wastewater |
Constant-pressure water supply, sewage aeration/return/lifting, pump station scheduling, pipeline boosting |
Blockage removal, pipe filling mode, STO SIL 3, CE/UL/ATEX certification |
| Building HVAC |
Chillers in commercial complexes, fresh air/exhaust fans, fire smoke extraction, VRV/chilled water pumps |
Flying start, automatic restart, PROFINET/EtherNet/IP, EMC Class C2 |
| Industrial HVAC/R |
Factory cooling water pumps, process fans, cooling towers, industrial chillers |
Wide temperature range, 110% overload for 60s, Modbus compatibility |
| Agriculture/Irrigation |
Field drip/sprinkler irrigation, well water pumping, greenhouse ventilation |
Dry-run protection, low noise, grid fluctuation resistance |
| 690 V Industrial Sector |
Large fans/pump stations, mine ventilation, metallurgical cooling systems |
EMC Class C3, Modbus/BACnet support, high overload capacity |
| Process Industry |
Process pumps, dust collection fans, kiln fans, compressed air stations |
Anti-interference, 3C3 anti-corrosion coating, multi-bus compatibility |
Frequently Asked Questions
Installation Adaptation
Can the G120X start normally when installed in low-temperature Nordic environments (-30℃ in winter)?
Standard models cannot operate at -30℃. Two adaptations are needed: 1) Add a heating plate to the drive's control circuit to prevent capacitor failure; 2) Preheat for 15-20 minutes before startup or install the drive in an insulated control cabinet. Even with adaptations, reduce the load by 10% at -30℃ to avoid component overload.
Installed in an Indian factory with severe grid harmonics, the drive frequently reports "overvoltage" (F30001). How to fix?
Core solution is to suppress harmonic interference: 1) Install an input reactor matching the drive's power; 2) Enable the drive's "harmonic suppression mode" and adjust voltage response thresholds; 3) Run a dedicated circuit for the drive to avoid cross-interference from other high-power equipment.
Tight construction schedules for overseas projects—no Siemens STARTER software on-site. How to commission quickly?
Use the BOP-2 panel for "quick commissioning": Press "Quick Setup" button, enter motor power, voltage, and frequency. The drive automatically generates basic parameters. Simple troubleshooting can be done by checking fault codes on the panel. Complex functions still require STARTER software.
Installed in a South American factory with limited control cabinet space—poor drive heat dissipation. How to optimize?
Three low-cost solutions: 1) Mount the drive vertically to leverage hot air rise; 2) Remove the drive's dust filter (only for clean environments); 3) Install a small exhaust fan on top of the cabinet to direct hot air out. Do not use frequency reduction to cool the drive as it affects pump/fan flow.
Operation & Maintenance
Customers want to reduce energy consumption. Besides variable frequency speed control, are there other energy-saving tips for the G120X?
Three easy-to-implement settings: 1) Enable "automatic energy-saving mode" to adjust output voltage based on load; 2) Set a "sleep threshold" to shut down automatically when load is below 8%; 3) Pair with IE4 high-efficiency motors for additional 3%-5% energy savings.
After 2 years of operation, the drive reports "fan fault" (F07900). Must I replace it with an original Siemens fan?
Not necessarily—compatible third-party fans work if they meet three criteria: 1) Same size; 2) Voltage match; 3) Airflow no less than the original. Third-party fans cost significantly less but choose reputable brands to avoid secondary failures.
In overseas projects, customers accidentally modified parameters, causing the drive to malfunction. How to restore?
Two quick recovery methods: 1) Restore factory settings via the BOP-2 panel; 2) If parameters were backed up earlier, copy them to the panel via USB and import directly. After restoration, reconfigure motor parameters and control mode.
In African projects, the drive frequently trips due to "grid voltage imbalance." Grid renovation costs are too high—any alternatives?
Use the drive's built-in functions to adapt: 1) Enable "voltage imbalance compensation"; 2) Reduce the drive's overload capacity; 3) Install a voltage stabilizer for the drive—significantly cheaper than grid renovation and flexible to install.
Regional Compliance
What special certifications are needed for G120X projects exported to Brazil?
INMETRO certification is required for customs clearance. Additionally: 1) Voltage must adapt to 380V three-phase 60Hz; 2) Technical documents must be translated into Portuguese; 3) Product nameplate must display INMETRO certification number and Brazilian importer information.
For EU projects, customers require an "energy efficiency label." Does the G120X meet this?
Yes. The G120X has an energy efficiency class of IE2 per IEC 61800-9-2 standard. Request the "EU Energy Efficiency Label" and test report from the supplier. Some EU countries require drives to have ≥IE2 efficiency for municipal project bids.
When installing in Canada, what wiring standards must the drive comply with?
Core compliance with CSA C22.2 standards: 1) Use CSA-certified copper core power cables; 2) Ground cables must be run independently with ground resistance <2Ω; 3) Maintain distance of ≥15cm between drive and other components; 4) All terminal blocks must be CSA-certified.