HLPA03D723B Danfoss Holip Inverter

HLPA03D723B is a general-purpose inverter from Danfoss Holip HLP‑A series, 3.7 kW, 220 V three-phase/single-phase. It is suitable for constant-torque loads, with an overload capacity of 150% para 1 minuto, built-in PID and simple PLC, ideal for industrial applications such as plastic extrusion and conveyors.

1. Model Explanation

2. Principais parâmetros elétricos

3. Dimensões & Electrical Specifications

3.1 Physical Dimensions (Unidade: milímetros)

Mounting Requirements: Mount vertically. Leave ≥100 mm clearance above and below, ≥50 mm left and right for ventilation. Avoid dust, oil, and humidity.

3.2 Electrical Installation

4. Wiring & Terminal Definitions

4.1 Main Circuit Terminals

4.2 Control Circuit Terminals (Padrão)

Wiring Notes: Separate main power and control wiring. Use shielded cable for analog signals, grounded at one end. Avoid parallel routing with power cables.

5. Características & Applications

Principais Funções

Built-in PID controller: Suitable for closed-loop control (pressure, flow, temperature)

Simple PLC: 16-step speed, program run, traverse function

Comprehensive protection: Overcurrent, sobretensão, subtensão, overheat, perda de fase, motor overload

Comunicação: RS485 standard, Modbus RTU, for centralized control

Aplicações Típicas

Plastic extruders: Optimized for constant torque, stable low-speed high-torque operation

Conveyors: Smooth start, multi-speed, load-adaptive

Mixers: High starting torque, strong overload capability

Packaging machinery: Precise speed control, positioning

6. Replacement & Selection Guide

6.1 Same-Brand Upgrades

6.2 Cross-Brand Equivalents

Critical Replacement Notes

1. Voltage match: Must be 220 V input
2. Current match: Rated current ≥17 A
3. Mounting match: Dimensions and cooling compatible
4. I/O match: Analog/digital interfaces compatible
5. Parameter transfer: Save old parameters, reconfigure per new manual
6. Fault Troubleshooting

8. Instalação & Maintenance

8.1 Installation Standards

Vertical mounting, away from direct sunlight and heat sources

Temperatura ambiente: -10°C~40°C (derate above 40°C)

Umidade: 5%~95% (sem condensação)

Altitude: ≤1000 m (derate above 1000 m)

8.2 Maintenance Schedule

Daily: Check temperature, fan noise, unusual odors

Quarterly: Clean heatsink, tighten terminals

Yearly: Check capacitors, replace worn fan

8.3 Braking Unit

For quick stop / high inertia: external braking unit HBR‑03D7 (para 3.7 kW)

Braking resistor: 50 Oh / 100 C (adjust per application)

9. Technical Specifications

Modelo: HLPA03D723B (HOLIP HLP‑A Series)

Rated Power: 3.7 kW

Tensão de entrada: 220 V Single/Three Phase, 50 Hz (±15%)

Rated Output Current: 17 UM

Capacidade de sobrecarga: 150%/1 min, 180%/0.2 é

Control Method: V/F control, built-in PID, simple PLC

Torque inicial: 150% rated torque at 1 Hz

Dimensões (W×H×D): 125×210×185 mm

Peso: Approx. 2.8 kg

Practical Troubleshooting for HLPA03D723B (3.7kW/220V)

1. Fault Codes (Most Common)

1.1 OC / Overcurrent

Causes: Motor jam, shorted cable, fast acceleration, poor motor insulation

Soluções:

1. Check for seized motor or overload
2. Increase acceleration time
3. Inspect U/V/W cables for damage or short
4. Run inverter without motor to isolate fault

1.2 OV / Sobretensão

Causes: Fast deceleration, high mains voltage, high-inertia load

Soluções:

1. Increase deceleration time
2. Add external braking resistor (≈50Ω/100W)
3. Check if input exceeds 250 V

1.3 UV / Subtensão

Causes: Baixo 220 V, loose wiring, perda de fase

Soluções:

1. Measure R/S/T voltage (no lower than 180 V)
2. Tighten power terminals
3. Single-phase: connect R & S only

1.4 OH / Overheat

Causes: Blocked vents, faulty fan, high ambient temp

Soluções:

1. Clean heatsink and fan
2. Verify fan operation
3. Maintain ≥10 cm clearance top/bottom

1.5 OL / Motor Overload

Causes: Heavy load, wrong motor parameters, low torque

Soluções:

1. Reduce load
2. Check motor rated current setting
3. Increase torque boost

1.6 GF / Ground Fault

Causes: Motor leakage, grounded cable, poor insulation

Soluções:

1. Test motor insulation
2. Check output cable for grounding
3. Secure PE connection

1.7 CE / Communication Error

Causes: RS485 interference, wrong wiring

Soluções:

1. Check A/B wiring polarity
2. Use shielded cable, grounded at one end
3. Route away from power cables
4. Abnormal Operation (No Fault Code)

2.1 Keypad displays but motor does not run

Soluções:

1. Check if in terminal control, no start signal
2. Verify DI1 (FWD) is closed
3. Check frequency reference (0 V/0 mA)

2.2 Motor vibration / noise

Soluções:

1. Lower carrier frequency
2. Tighten motor cables
3. Increase torque boost at low speed

2.3 Frequency cannot rise / limited

Soluções:

1. Check maximum frequency parameter
2. Verify analog signal (0‑10 V/4‑20 mA)
3. Check for false multi-speed input
4. Important Notes for HLPA03D723B

220 V ONLY: DO NOT connect to 380 V (will damage IGBT module)

Top 3 falhas: OC, OV, UV

Single-phase input must be tightly secured; loose terminals often cause UV faults