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% pentru 1 minut, built-in PID and simple PLC, ideal for industrial applications such as plastic extrusion and conveyors.

1. Explicația modelului

2. Key Electrical Parameters

3. Dimensiuni & Specificații electrice

3.1 Physical Dimensions (Unit: mm)

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. Cablaj & Terminal Definitions

4.1 Main Circuit Terminals

4.2 Control Circuit Terminals (Standard)

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

5. Caracteristici & Applications

Funcții principale

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

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

Comprehensive protection: Overcurrent, overvoltage, undervoltage, overheat, phase loss, motor overload

Communication: RS485 standard, Modbus RTU, for centralized control

Aplicații tipice

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. Depanarea erorilor

8. Instalare & Întreţinere

8.1 Installation Standards

Vertical mounting, away from direct sunlight and heat sources

Ambient temperature: -10°C~40°C (derate above 40°C)

Umiditate: 5%~95% (necondens)

Altitudine: ≤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 (pentru 3.7 kW)

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

9. Specificatii tehnice

Model: HLPA03D723B (HOLIP HLP‑A Series)

Putere nominală: 3.7 kW

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

Rated Output Current: 17 O

Capacitate de suprasarcină: 150%/1 min, 180%/0.2 s

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

Starting Torque: 150% rated torque at 1 Hz

Dimensiuni (W×H×D): 125×210×185 mm

Greutate: Aproximativ. 2.8 kg

Practical Troubleshooting for HLPA03D723B (3.7kW/220V)

1. Fault Codes (Cele mai comune)

1.1 OC / Overcurrent

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

Soluții:

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 / Supratensiune

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

Soluții:

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

1.3 UV / Subtensiune

Cauze: Low 220 V, loose wiring, phase loss

Soluții:

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

Cauze: Blocked vents, faulty fan, high ambient temp

Soluții:

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

1.5 OL / Motor Overload

Cauze: Heavy load, wrong motor parameters, low torque

Soluții:

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

1.6 GF / Ground Fault

Cauze: Motor leakage, grounded cable, poor insulation

Soluții:

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

1.7 CE / Communication Error

Cauze: RS485 interference, wrong wiring

Soluții:

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

Soluții:

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

Soluții:

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

2.3 Frequency cannot rise / limited

Soluții:

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 defecte: OC, OV, UV

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