HLPA03D723B is a general-purpose inverter from Danfoss Holip HLP‑A series, 3.7 กิโลวัตต์, 220 V three-phase/single-phase. It is suitable for constant-torque loads, with an overload capacity of 150% สำหรับ 1 minute, built-in PID and simple PLC, ideal for industrial applications such as plastic extrusion and conveyors.
- Model Explanation
| Code | ความหมาย |
|---|---|
| HLP | Holip brand prefix |
| ก | HLP‑A general series (optimized for constant torque) |
| 03D7 | Power code, corresponding to 3.7 กิโลวัตต์ |
| 23 | Voltage code: 2=220 V, 3=three-phase (compatible with single-phase) |
| บี | Hardware version/configuration (standard version) |
- Key Electrical Parameters
| Item | ข้อมูลจำเพาะ |
| กำลังไฟพิกัด | 3.7 กิโลวัตต์ |
| แรงดันไฟฟ้าขาเข้า | 220 V single/three-phase, 50 Hz (±15% wide voltage range) |
| Rated Input Current | Approx. 17 ก |
| Rated Output Current | 17 ก (continuous) |
| Overload Capacity | 150% สำหรับ 1 min, 180% สำหรับ 0.2 ส |
| Output Frequency Range | 0.1~400 Hz (resolution 0.01 Hz) |
| Control Mode | V/F control, built-in PID, simple PLC |
| Starting Torque | ขึ้นไป 150% rated torque at 1 Hz |
| Cooling | Forced air cooling |
| Protection Degree | IP20 (keypad) |
| Applicable Motor | 3.7 กิโลวัตต์ 220 V three-phase asynchronous motor |
| Standard Keypad | OP‑AB01 (remotely mountable) |
- ขนาด & ข้อมูลจำเพาะทางไฟฟ้า
3.1 ขนาดทางกายภาพ (Unit: มม)
| Item | ค่า |
| Width (ว) | 125 |
| Height (H) | 210 |
| Depth (ดี) | 185 |
| Mounting Holes | 4×φ5 (spacing: 100×190) |
| น้ำหนัก | Approx. 2.8 กก |
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
| Component | Rating | Cable Size |
| Input Circuit Breaker (NFB) | 30 ก | 4 mm² (copper) |
| Input Contactor | 25 ก | 4 mm² |
| Output Cable | 4 mm² (shielded recommended) | |
| วงจรควบคุม | 1.5 mm² (shielded for signals) | |
| การต่อลงดิน | ≥4 mm², grounding resistance ≤10 Ω |
- Wiring & Terminal Definitions
4.1 Main Circuit Terminals
| Terminal | Function |
| R/L1, S/L2, T/L3 | 220 V power input (single-phase: connect R/L1, S/L2) |
| U, วี, ว | Inverter output (to motor) |
| วิชาพลศึกษา | Protective earth (must be securely connected) |
4.2 Control Circuit Terminals (มาตรฐาน)
| Terminal | Description |
| DI1~DI5 | 5 อินพุตดิจิตอล (programmable: FWD, REV, multi-speed) |
| DO1~DO2 | 2 digital outputs (รีเลย์ / open-collector optional) |
| AI1 | Analog input (0~10 V/4~20 mA, programmable) |
| AO1 | Analog output (0~10 V, for frequency/current) |
| +10วี | 10 V DC supply (max 50 มิลลิแอมป์) |
| GND | Analog / digital common |
| RS485 | Communication port (Modbus RTU) |
หมายเหตุการเดินสายไฟ: Separate main power and control wiring. Use shielded cable for analog signals, grounded at one end. Avoid parallel routing with power cables.
- คุณสมบัติ & Applications
Main Functions
Built-in PID controller: Suitable for closed-loop control (pressure, flow, temperature)
Simple PLC: 16-step speed, program run, traverse function
Comprehensive protection: Overcurrent, แรงดันไฟฟ้าเกิน, แรงดันตก, overheat, phase loss, motor overload
Communication: RS485 standard, Modbus RTU, for centralized control
การใช้งานทั่วไป
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
- Replacement & Selection Guide
6.1 Same-Brand Upgrades
| Original | Replacement | Advantage |
| HLPA03D723B | Danfoss FC‑051P3K7T2E20H3B | Fully compatible, upgraded functions, Danfoss support |
| HLPA03D723B | Holip HLP‑A100 3.7 กิโลวัตต์ 220 วี | Same platform, parameter compatible |
6.2 Cross-Brand Equivalents
| ยี่ห้อ | แบบอย่าง | Key Match |
| Inovance | MD200S3.7B | 220 วี 3.7 กิโลวัตต์, 17 ก, V/F control |
| Invt | CHF100A‑3R7G‑2 | 220 วี 3.7 กิโลวัตต์, 17 ก, built-in PID |
| Delta | VFD037E23A | 220 วี 3.7 กิโลวัตต์, 17 ก, torque boost |
Critical Replacement Notes
- Voltage match: Must be 220 V input
- Current match: Rated current ≥17 A
- Mounting match: Dimensions and cooling compatible
- I/O match: Analog/digital interfaces compatible
- Parameter transfer: Save old parameters, reconfigure per new manual
- Fault Troubleshooting
| Fault Code | ความหมาย | โซลูชั่น |
| OC | Overcurrent | 1. Check motor load & insulation |
| 2. Increase acceleration time | ||
| 3. Verify motor-inverter match | ||
| OV | แรงดันไฟฟ้าเกิน | 1. Increase deceleration time |
| 2. Add braking unit/resistor | ||
| 3. Check mains voltage | ||
| UV | แรงดันตก | 1. Check input voltage (≥187 V) |
| 2. Tighten power terminals | ||
| 3. Stabilize power supply | ||
| OH | Overheat | 1. Improve ventilation (≤40°C) |
| 2. Clean heatsink | ||
| 3. Check fan operation | ||
| GF | Ground Fault | 1. Check motor/cable insulation |
| 2. Ensure reliable grounding | ||
| 3. Eliminate leakage | ||
| OL | Motor Overload | 1. Reduce load |
| 2. Check motor rated current setting | ||
| 3. Increase torque boost |
- Installation & Maintenance
8.1 Installation Standards
Vertical mounting, away from direct sunlight and heat sources
อุณหภูมิแวดล้อม: -10°C~40°C (derate above 40°C)
ความชื้น: 5%~95% (non-condensing)
ระดับความสูง: ≤1,000 ม (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 (สำหรับ 3.7 กิโลวัตต์)
Braking resistor: 50 Ω / 100 ว (adjust per application)
- Technical Specifications
แบบอย่าง: HLPA03D723B (HOLIP HLP‑A Series)
กำลังไฟพิกัด: 3.7 กิโลวัตต์
แรงดันไฟฟ้าขาเข้า: 220 V Single/Three Phase, 50 Hz (±15%)
Rated Output Current: 17 ก
Overload Capacity: 150%/1 min, 180%/0.2 ส
วิธีการควบคุม: V/F control, built-in PID, simple PLC
Starting Torque: 150% rated torque at 1 Hz
ขนาด (W×H×D): 125×210×185 mm
น้ำหนัก: Approx. 2.8 กก
Practical Troubleshooting for HLPA03D723B (3.7kW/220V)
- Fault Codes (Most Common)
1.1 OC / Overcurrent
สาเหตุ: Motor jam, shorted cable, fast acceleration, poor motor insulation
โซลูชั่น:
- Check for seized motor or overload
- Increase acceleration time
- Inspect U/V/W cables for damage or short
- Run inverter without motor to isolate fault
1.2 OV / แรงดันไฟฟ้าเกิน
สาเหตุ: Fast deceleration, high mains voltage, high-inertia load
โซลูชั่น:
- Increase deceleration time
- Add external braking resistor (≈50Ω/100W)
- Check if input exceeds 250 วี
1.3 UV / แรงดันตก
สาเหตุ: ต่ำ 220 วี, loose wiring, phase loss
โซลูชั่น:
- Measure R/S/T voltage (no lower than 180 วี)
- Tighten power terminals
- Single-phase: connect R & S only
1.4 OH / Overheat
สาเหตุ: Blocked vents, faulty fan, high ambient temp
โซลูชั่น:
- Clean heatsink and fan
- Verify fan operation
- Maintain ≥10 cm clearance top/bottom
1.5 OL / Motor Overload
สาเหตุ: Heavy load, wrong motor parameters, low torque
โซลูชั่น:
- Reduce load
- Check motor rated current setting
- Increase torque boost
1.6 GF / Ground Fault
สาเหตุ: Motor leakage, grounded cable, poor insulation
โซลูชั่น:
- Test motor insulation
- Check output cable for grounding
- Secure PE connection
1.7 ซีอี / Communication Error
สาเหตุ: RS485 interference, wrong wiring
โซลูชั่น:
- Check A/B wiring polarity
- Use shielded cable, grounded at one end
- Route away from power cables
- Abnormal Operation (No Fault Code)
2.1 Keypad displays but motor does not run
โซลูชั่น:
- Check if in terminal control, no start signal
- Verify DI1 (FWD) is closed
- Check frequency reference (0 V/0 mA)
2.2 Motor vibration / noise
โซลูชั่น:
- Lower carrier frequency
- Tighten motor cables
- Increase torque boost at low speed
2.3 Frequency cannot rise / limited
โซลูชั่น:
- Check maximum frequency parameter
- Verify analog signal (0‑10 V/4‑20 mA)
- Check for false multi-speed input
- Important Notes for HLPA03D723B
220 V ONLY: DO NOT connect to 380 วี (will damage IGBT module)
Top 3 ข้อบกพร่อง: OC, OV, UV
Single-phase input must be tightly secured; loose terminals often cause UV faults
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