The ATV310HU55N4E is a three-phase variable speed drive (VSD) from the Easy Altivar 310 range, developed for simple machine applications. Compact and efficient, it delivers a motor power of 5.5 kW (7.5 hp) and is built with a heat sink assembly style for cooling.
Range: Easy Altivar 310
Product Type: Variable speed drive
Application: Simple machine
Assembly Style: With heat sink
Rated Supply Voltage (Us): 380…460 V (-15% to +10%)
Network Phases: Three-phase
Motor Power:
5.5 kW
7.5 hp
Noise Level: 50 dB
Supply Frequency: 50/60 Hz ±5%
Line Current: 14.3 A
Apparent Power: 11.4 kVA
Continuous Output Current: 12.6 A at 4 kHz
Transient Current: 18.9 A for 60 seconds
Power Dissipation: 141.54 W at nominal current
Output Voltage: 380…460 V (Three-phase)
Output Frequency Range: 0.5 to 400 Hz
Switching Frequency:
Nominal: 4 kHz
Adjustable: 2 to 12 kHz
Speed Range: 1 to 20
Overtorque: 170–200% of nominal motor torque
Braking Torque:
Up to 150% with braking resistor
Up to 70% without resistor
Control Profile:
Quadratic voltage/frequency ratio
Adjustable slip compensation
Protocol: Modbus RTU
Port: RJ45 front face
Physical Interface: 2-wire RS485
Baud Rates Supported:
4800
9600
19200
38400 bit/s
Modbus Addresses: 1–247
Supported Modbus Services:
Read Holding Registers (03): 29 words
Write Single Register (06): 29 words
Write Multiple Registers (16): 27 words
Read/Write Multiple Registers (23): 4/4 words
Read Device Identification (43)
Analogue Inputs: 1 (AI1)
0–10 V, 0–5 V (30 kΩ)
0–20 mA (250 Ω)
Analogue Outputs: 1 (AO1)
Voltage: 0–10 V, 470 Ω
Current: 0–20 mA, 800 Ω
Resolution: 8 bits
Discrete Inputs: 4 (LI1–LI4)
24 V (18–30 V)
Positive Logic: 0–<5 V (0), >11 V (1)
Negative Logic: >16 V (0), <10 V (1), 3.5 kΩ impedance
Discrete Outputs: 2 logic outputs (LO+, LO−)
Relay Output: 1 C/O contact (R1A, R1B, R1C)
Min. switching: 5 mA @ 24 V DC
Max. inductive: 2 A @ 250 V AC or 30 V DC
Max. resistive: 3 A @ 250 V AC or 4 A @ 30 V DC
Line supply over/undervoltage
Overcurrent and overheating
Phase-to-earth/motor phase short-circuit
Phase loss in 3-phase systems
I²t-based motor thermal protection
Mounting Position: Vertical ±10°
Dimensions (mm): 151 (H) x 140 (W) x 184 (D)
Weight: 1.8 kg (Net), 2.27 kg (with packaging)
Cooling: Integrated fan
Ambient Temperature:
Operating: -10…55 °C (no derating), up to 60 °C with derating
Storage: -25…70 °C
Humidity: 5–95% non-condensing/drip-free
Altitude: ≤1000 m without derating
IP Protection:
IP20 (without blanking plate)
IP41 (top)
Shock Resistance: 15 gn (EN/IEC 60068-2-27)
Electromagnetic Compatibility:
Conforms to EN/IEC 61000-4-x and EN/IEC 61800-3
Pollution Resistance:
Dust: Class 3S2
Chemical: Class 3C3
Mounting Types: Type A & Type B (with clearance guidelines)
Clearance Required: As per standard mounting instructions
Connections:
Terminals: L1, L2, L3, PA/+, PB, U, V, W (clamping capacity: 4 mm²)
Torque: 1.2–1.4 N·m
Unit Type: PCE
Package Dimensions:
Height: 19 cm
Width: 19 cm
Length: 23 cm
The ATV310HU55N4E is a robust and efficient drive optimized for basic automation needs in industrial setups. It combines flexibility in motor control, rich communication features, and durable environmental ratings, making it ideal for OEMs and system integrators looking for cost-effective, high-performance VSD solutions.
This section outlines common problems, their possible causes, and recommended corrective actions for the ATV310HU55N4E variable speed drive (VSD):
Possible Causes:
No power supply or improper voltage level.
Loose or damaged input wiring.
Blown fuse or tripped breaker.
Actions:
Verify power supply voltage (380–460 V, 3-phase).
Check input terminals (L1, L2, L3) for correct connection.
Inspect fuses and breakers; replace if necessary.
Possible Causes:
Incorrect parameter settings.
Command not properly configured.
Input terminals (LI1–LI4) not receiving proper signal.
Actions:
Check Modbus or digital input configuration.
Ensure run command is active (wired or via Modbus).
Verify logic input voltage levels:
Positive Logic: >11 V = ON
Negative Logic: <10 V = ON
Possible Causes:
Motor overload.
Short circuit between output phases or to ground.
Incorrect motor configuration or faulty motor.
Actions:
Measure motor current and compare with rated current (12.6 A).
Inspect motor and wiring for shorts.
Check motor parameters (power, frequency, voltage).
Possible Causes:
Poor ventilation or blocked fan.
Ambient temperature > 55°C without derating.
Continuous high load.
Actions:
Ensure clear airflow and clean heat sink/fan.
Verify ambient temp (should be ≤ 55°C for full load).
Check if load exceeds drive rating (5.5 kW).
Possible Causes:
Fluctuating or improper supply voltage.
Power supply instability.
Actions:
Confirm input voltage is within 380–460 V ±10%.
Use line choke or voltage stabilizer if needed.
Possible Causes:
Incorrect Modbus address or baud rate.
Wrong cable or wiring issue.
Protocol mismatch (RTU required).
Actions:
Confirm slave address (1–247) and baud rate (default 9600).
Use 2-wire RS485 with RJ45 correctly connected.
Verify protocol is RTU and termination resistor is in place if needed.
Possible Causes:
Incorrect analog signal range.
Signal interference or loose wiring.
Actions:
Confirm signal matches configuration (0–10V, 0–20mA).
Check wiring and impedance:
Voltage input: 30 kΩ
Current input: 250 Ω
Possible Causes:
Broken connection to motor terminals (U, V, W).
Motor insulation failure or incorrect wiring.
Actions:
Inspect output connections.
Perform insulation resistance test on motor.
Possible Causes:
Missing or faulty braking resistor.
High inertia load without braking resistor.
Actions:
Install appropriate braking resistor (if not present).
Check torque demands (up to 150% supported with resistor).
Possible Causes:
Inadequate motor tuning.
Wrong speed range or frequency setting.
Actions:
Recheck speed range (1–20), frequency range (0.5–400 Hz).
Tune slip compensation or apply motor auto-tuning.