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Model Code Definition
| Code Segment | Description |
| ATV | Base series code: Altivar Variable Speed Drive, Schneider’s VFD product line |
| 310 | Series designation: Economy Altivar 310 series, cost-effective drives for general industrial applications |
| H | Load rating: Heavy Duty, designed for continuous heavy-load operation with higher rated output current |
| U75 | Power rating: 7.5 kW (10 HP), matched for 7.5kW three-phase asynchronous motors |
| N4 | Power supply specification: 3-phase 380–460 V AC, 50/60 Hz; permissible voltage variation: -15% ~ +10% |
| E | Configuration option: Standard version without built-in EMC filter; models with integrated filter end with suffix A |
- Core Technical Specifications
2.1 Electrical Specifications
| Item | Value | Remark |
| Rated Power | 7.5kW(10HP) Heavy Duty / 11kW(15HP) Normal Duty | Dual rating design for diverse working conditions |
| Rated Input Voltage | 3-phase 380–460 V AC | Operating range:323–528 V AC |
| Rated Output Current | 17 A (HD) / 24 A (ND) | Full rating up to 55°C; 2.2% derating per °C above 55°C up to 60°C |
| Output Frequency Range | 0.1~500 Hz | Minimum 0.1Hz under sensorless vector control |
| Control Mode | Sensorless Vector Control / V/F Control | Automatic torque boost for various asynchronous motors |
| Instant Overload Torque | 170~200% of rated torque | Sustain for 2 seconds for shock load applications |
| Built-in Braking Unit | Standard equipped | Pre-installed on models ≥7.5kW for fast braking requirements |
| Communication Port | RS485 (Modbus RTU) | RJ45 terminal on front panel for remote monitoring |
| Protection Class | IP20 | Cabinet indoor mounting only |
2.2 Mechanical & Environmental Specifications
| Item | Value | Remark |
| Overall Dimension(W×H×D) | 210×380×170 mm | Compact footprint to save cabinet space |
| Mounting Type | Wall / Panel mounting | Vertical installation to secure unobstructed cooling airflow |
| Operating Temperature | -10℃ ~ +55℃ (full rating) | 2.2% power derating per ℃ between 55℃~60℃ |
| Storage Temperature | -25℃ ~ +70℃ | Keep away from damp and corrosive gas atmosphere |
| Ambient Humidity | 5%~95% (non-condensing) | Dehumidifier recommended inside control cabinet |
| Cooling Method | Forced air cooling with built-in fan | Fan with thermal protection and auto fault alarm |
| Net Weight | Approx.7.8 kg | Easy transportation and field installation |
2.3 Certification & Compliance
| Certification | Applicable Standard | Remark |
| CE | EN 61800-5-1 / EN 61000-6-2/4 | Safety & EMC compliance standard |
| UL Recognized | UL 508C | North American standard for industrial control equipment |
| Eco Compliance | EU RoHS / China RoHS | Restriction of hazardous substances |
| HS Customs Code | 85044099 | Used for customs clearance in international trade |
- Full Heavy-Duty Model List of ATV310 Series
| Part No. | Model Description | Power Rating | Special Feature | Typical Application |
| ATV310HU75N4E | 7.5kW Heavy Duty | 7.5kW /10HP | Without built-in EMC filter | General industrial fans & pumps |
| ATV310HU75N4A | 7.5kW Heavy Duty | 7.5kW /10HP | With built-in EMC filter | Sites with strict EMC requirements |
| ATV310H037N4E | 0.37kW Heavy Duty | 0.37kW /0.5HP | Without EMC filter | Small machinery, conveyor belts |
| ATV310H075N4E | 0.75kW Heavy Duty | 0.75kW /1HP | Without EMC filter | Mini fans & water pumps |
| ATV310H15N4E | 1.5kW Heavy Duty | 1.5kW /2HP | Without EMC filter | Packaging & textile machinery |
| ATV310H22N4E | 2.2kW Heavy Duty | 2.2kW /3HP | Without EMC filter | Material handling equipment, compressors |
| ATV310H30N4E | 3.0kW Heavy Duty | 3.0kW /4HP | Without EMC filter | Agitators, small water pumps |
| ATV310H40N4E | 4.0kW Heavy Duty | 4.0kW /5.5HP | Without EMC filter | Cooling towers, ventilation systems |
| ATV310H55N4E | 5.5kW Heavy Duty | 5.5kW /7.5HP | Without EMC filter | Medium-sized fans & process pumps |
| ATV310HD11N4E | 11kW Heavy Duty | 11kW /15HP | Without EMC filter | Large compressors, industrial pumps |
- Cross Reference: Internal Upgrade & Competitor Equivalent
4.1 Schneider Internal Replacement
| Obsolete Model | Replacement Model | Upgrade Advantages |
| ATV303HU75N4 | ATV310HU75N4E/A | Wider operating temp (-10~55℃), integrated braking unit, anti-corrosion coating, more compact dimension |
| ATV310HU75N4E | ATV310HU75N4A | Add integrated EMC filter to satisfy stricter EMC regulations |
4.2 Cross-brand Alternative Comparison
| Schneider Model | Siemens Equivalent | ABB Equivalent | Key Differentiation |
| ATV310HU75N4E | MM440-7.5kW | ACS510-7.5kW | Schneider: Dual power rating, full capacity @55℃, built-in brake unit, cost competitive |
| – | 150% overload for 3s | 160% overload for 1min | Siemens: Higher vector control precision; ABB: Richer communication options |
- Application Scope & Industrial Cases
5.1 Recommended Applications
- Industrial Pumps & Fans: HVAC systems, raw & wastewater treatment plants; 30~50% energy saving achievable
- Material Handling: Conveyors, hoists, cranes for smooth soft start and variable speed regulation
- Textile Equipment: Winding machines, looms, printing & dyeing machines for constant tension control
- Packaging Machinery: Filling, labeling and sealing equipment to boost production efficiency & product quality
- Compressors: Air & refrigeration compressors; soft start reduces grid surge and extends motor service life
- Mixing Equipment: Chemical reactors & food blenders for mixing of fluids with variable viscosity
5.2 Not Recommended Applications
- Precision speed control for synchronous motors: Select ATV340 series with encoder-feedback vector drive
- High altitude installation (>1000m): Mandatory power derating by 1% per additional 100m elevation
- Corrosive gas environment: Add external anti-corrosion enclosure or specify ATV320 anti-corrosion variant
- IP rating higher than IP20: Choose ATV320 IP54 protected models
5.3 Typical Application Cases
Case1: Aeration System for Municipal Wastewater Plant
Application: Variable speed control of 7.5kW submersible aerator based on real-time dissolved oxygen value
Original Issue: Direct-on-line start leads to short motor lifespan, high power consumption and severe grid disturbance
Solution: Install ATV310HU75N4E for soft start; 40% power saving, double motor service life and reduced maintenance cost
Case2: Textile Spool Winding Machine
Application: Constant tension control for uniform yarn winding
Original Issue: Big tension fluctuation causes high yarn breakage rate and unstable finished quality
Solution: Adopt sensorless vector control to adjust output torque dynamically; tension tolerance controlled within ±5% and 15% improvement on finished product yield
- Selection Guidelines & Quick Reference Rules
Quick Selection Rules
- Code Identification: ATV310=core series; H=Heavy Duty; U75=7.5kW; N4=3-phase 380V; E=No EMC filter
- Key Specs Recap: 17A rated current, 170~200% overload torque, integrated brake unit, Modbus RTU communication
- Upgrade Option: Suffix A = built-in EMC filter; high-performance demand → ATV340 series
- Application Rule: Continuous heavy load → H version; light load → D version; strict EMC → A suffix model
- Air Shipment & CE Compliance Specification
7.1 Air Transport Regulation
Lithium Battery Check: No built-in lithium cells, classified as non-restricted cargo without special air shipping marks
Shipping Standard: Complies with IATA DGR Class9, allowed for general cargo transportation
Packing: Original factory carton preferred; anti-shock foam padding recommended to avoid transit damage
7.2 CE Certification Details
Applied Standards: EN 61800-5-1(Safety), EN 61000-6-2(Immunity), EN 61000-6-4(Emission)
DOC Download: EU Declaration of Conformity available on Schneider official website (Doc No.:ATV310_CE_DOC.pdf)
Valid Territory: All EU member states and regions recognizing CE marking
- On-site Troubleshooting Guide
| Fault Code & Description | Root Cause | Corrective Action |
| CF Overcurrent Fault | 1. Motor winding short or earth fault | 1. Insulate motor cable & winding |
| 2. Too short acceleration ramp | 2. Extend acceleration time (Parameter 202) | |
| 3. Excessive mechanical overload | 3. Reduce load or upgrade to higher power drive | |
| OH Overheat Fault | 1. Excessive ambient temperature | 1. Improve cabinet cooling & reduce surrounding temp |
| 2. Failed cooling fan | 2. Inspect/replace faulty fan | |
| 3. Poor cabinet ventilation | 3. Reserve ≥10cm clearance around drive | |
| PF Power Supply Fault | 1. Abnormal input voltage (phase loss/low voltage) | 1. Measure three-phase incoming voltage & phase sequence |
| 2. Severe mains fluctuation | 2. Add line reactor or stabilizer | |
| 3. Loose input terminal wiring | 3. Retighten terminals at 2.5~3.0 N·m torque | |
| SC Output Short-circuit | 1. Short on output terminals | 1. Check output terminal insulation |
| 2. Damaged motor cable insulation | 2. Replace defective power cable | |
| 3. Internal drive hardware damage | 3. Contact Schneider after-sales service | |
| FL Underload Alarm | 1. Disconnection between motor and mechanical load | 1. Check mechanical coupling between motor & load |
| 2. Insufficient load | 2. Adjust underload protection threshold (Parameter404) | |
| 3. Incorrect parameter setting | 3. Verify entered motor nameplate parameters |
- Installation & Wiring Specification for Field Use
9.1 Installation Requirements
- Mounting Position: Middle/upper zone inside control cabinet, avoid dusty bottom area; vertical mounting only
- Clearance: ≥10cm left/right spacing, ≥15cm top/bottom spacing for smooth heat dissipation
- Earthing Rule: Reliable PE connection; earth resistance ≤4Ω; ground conductor ≥6mm² copper cable
9.2 Main Power Circuit Wiring
| Terminal Marking | Definition | Wiring Standard |
| L1/L2/L3 | 3-phase AC Input | ≥6mm² copper cable, tightening torque:2.5~3.0 N·m |
| U/V/W | Motor Output Terminals | ≥6mm² copper cable, tightening torque:2.5~3.0 N·m |
| PA/PB | External Brake Resistor Connection(Optional) | ≥4mm² copper cable, tightening torque:2.0~2.5 N·m |
| PE | Protective Earth | ≥6mm² copper cable, tightening torque:3.0~3.5 N·m |
9.3 Control Circuit Wiring
- Digital Input DI1~DI6: PNP/NPN switchable for limit switches & sensor signals
- Analog Input AI1: 0~10V /4~20mA for speed reference or process feedback signal
- Analog Output AO1:0~10V/4~20mA for output frequency, current or torque monitoring
- Communication: RS485 Modbus RTU for data exchange with PLC & HMI
