Complete Technical Documentation for PI150 1R5G3
- Scomposizione del codice modello
PI150 1R5G3
PI150: Serie di prodotti, Powtran Economical Mini Sensorless Vector VFD
1R5: Rated Power 1.5kW (R stands for decimal point, 1R5 = 1.5)
G: General Duty (Constant Torque Type)
3: 3-phase AC380V Input
Suffix Supplement:
PI150 1R5G3Z = Built-in braking chopper; Without suffix Z = Standard version, no built-in braking chopper
- Specifiche elettriche principali
| Articolo | Parametro |
| Modello | PI150 1R5G3 |
| Potenza nominale | 1.5 kW |
| Alimentazione elettrica | 3-phase AC 380V~440V (-15%~+10%), 50/60Hz |
| Corrente di uscita nominale | 3.8 UN |
| Tipo di carico | Coppia costante (G type) |
| Capacità di sovraccarico | 150% corrente nominale per 60s; 180% rated current for 2s |
| Modalità di controllo | Controllo V/F, Controllo vettoriale senza sensori (SVC) |
| Coppia di avviamento | 150% coppia nominale a 0,5 Hz (Sensorless Vector Mode) |
| Gamma di frequenze di uscita | Vector mode: 0~320Hz; V/F mode: 0~3200Hz |
| Frequenza portante | 0.5kHz~16kHz adjustable |
| Comunicazione | RS485 standard, Modbus RTU/ASCII Protocol |
| PID Function | PID integrato, supports constant pressure water supply & controllo del flusso a circuito chiuso |
| Braking Chopper | Standard unit without built-in braking chopper; Suffix Z version equipped with built-in braking chopper |
| Terminali I/O | 5-channel Digital Input (DI), 1-uscita relè del canale, 1-channel Analog Input AI (0~10 V / 4~20mA) |
- Dimensioni meccaniche & Installazione
Dimensione complessiva (A × L × P): 138 × 72 × 123.5 mm
Metodo di montaggio: 35Montaggio su guida DIN da mm / Screw wall mounting
Peso: ca. 1.1 kg
- Working Principle Overview
Adopts AC-DC-AC voltage-source inverter topology.
3-phase AC power is rectified into DC bus voltage; IGBT inverter outputs adjustable voltage & adjustable frequency 3-phase AC power.
Equipped with DSP chip to realize sensorless vector algorithm, offering superior low-frequency torque compared with conventional V/F inverters.
- Scenari applicativi tipici
Trasportatori, small fans, pompe dell'acqua, agitatori, macchine per la lavorazione del legno, macchine per l'imballaggio, light-duty small machine tool spindles.
- Linee guida per il cablaggio
- Main Circuit Terminals: R, S, T (3-phase Input); U, V, W (Connect to 3-phase motor);
- Version without suffix Z: For rapid stop function, external braking resistor + external braking chopper are required;
- Analog input AI supports 0~10V voltage / 4~20mA current, selectable via onboard jumper;
- RS485 terminals A/B, support PLC networking communication.
- Selection Pitfall Guide
- ❌ Do not confuse voltage grades
G1: Monofase 220V; G3: 3-fase 380V; Direct replacement is prohibited
- ❌ For frequent start-stop & high inertia loads: Prioritize 1R5G3Z (with built-in braking chopper)
- ❌ G-type constant torque drive can theoretically be used for fan & pump variable torque loads; Powtran P-series is recommended for high-power fan/pump applications
- If ambient temperature>40℃ or installed inside sealed cabinet, derating operation and enhanced ventilation are required
- Compatible Alternatives
- Same-brand Upgrade: Powtran PI160 1R5G3 (funzioni migliorate)
- Cross-brand equivalent alternatives
Delta VFD015E43A / VFD015EL43A
Inovance MD200T1.5B
Schneider ATV312HU15N4
- Codici di errore comuni (Abbreviated)
| Codice errore | Descrizione | Troubleshooting Direction |
| OC | Over Current | Cortocircuito del motore, load stall, insufficient acceleration/deceleration time |
| OV | Over Voltage | Large regenerative energy, braking resistor required; excessive grid voltage |
| OH | Overheat | Blocked heat dissipation, high ambient temperature, excessive carrier frequency |
| LU | Sotto tensione | Perdita di fase in ingresso, instantaneous grid voltage drop, poor contact of contactor |
Optional deliverables upon request:
1) Full English product datasheet;
2) Text diagram of standard terminal wiring;
3) Motor auto-tuning procedure;
4) Parameter comparison table vs Delta VFD015E43A
Application Fields of Powtran PI150 1R5G3 (1.5kW 380V Mini Vector VFD)
Posizionamento del prodotto
PI150 is an economical compact sensorless vector VFD. Dimensioni compatte, DIN rail mounting support, integrated V/F control + SVC sensorless vector control with excellent low-frequency torque. Ideal for small & media potenza, standard working conditions, installation space limited drive applications.
Specifica nominale: 1.5kW, 3-fase 380V, constant torque G model, standard version without built-in braking chopper.
- General Automation Equipment Industry (Mainstream Applications)
- Macchine per l'imballaggio
Light-duty conveyors, material arranging machines, simple film winding mechanisms, carton transport, small case sealers, label conveying units.
Features for application: Stable low-speed startup, analog speed regulation available, medium start-stop frequency.
⚠️ For high-speed winding & high-inertia frequent braking scenarios, select 1R5G3Z with built-in braking chopper.
- Macchine per la lavorazione del legno
Light feed conveyors, simple sanding transport, small edge trimming feeding mechanism, light roller conveyor drive.
- Logistics Conveying Equipment
Light belt conveyors, roller conveyor lines, sorting branch transport mechanisms, light-duty small elevators.
- Fluid Equipment (Tifosi & Pompe)
- Small workshop induced draft fans, ventilatori di scarico, ventole di raffreddamento dell'armadio;
- Small circulating water pumps, pompe dell'acqua di raffreddamento, simple constant pressure water supply branches;
✅ Advantage: Built-in PID function, directly connects pressure/liquid level sensors to realize closed-loop speed regulation;
⚠️ Note: Larger submersible pumps & multi-stage pumps are recommended to select one power grade higher.
- Industria leggera & Food Machinery
Piccoli agitatori, light screw conveyors, food production line conveyors, simple filling transport mechanisms.
Suitable environment: Normal temperature, light dust; Direct spraying of high humidity & water vapor on control cabinet is forbidden.
- Plastica & Macchinari per la gomma
Piccoli trasportatori, simple traction machines, light auxiliary extruder transport, small pelletizing conveying equipment.
- Light-duty Machine Tools & Hardware Equipment
Small machine tool feed conveyors, simple rack feeding mechanisms, small grinder drive;
❌ Not suitable: Precision spindles, high-speed high-precision processing equipment (No encoder interface, insufficient positioning capability).
- HVAC, Protezione ambientale & Water Treatment Auxiliaries
Small waste gas treatment fans, water treatment dosing agitators, small sewage circulating pumps, dust removal branch fans.
- Agricultural Machinery Accessories
Greenhouse circulating fans, acqua & fertilizer integrated machine transfer pumps, light material conveying equipment.
Non consigliato / Forbidden Application Scenarios
- Lifting equipment, heavy hoists, ascensori (No safety braking certification, severamente proibito);
- High-speed tension winding, frequent rapid braking with high inertia loads (Nessun chopper di frenatura integrato, prone to OV overvoltage fault);
- Posizionamento ad alta precisione & synchronous control applications (No encoder feedback support);
- Explosion hazardous areas (Nessuna certificazione antideflagrante);
- Strong corrosive, elevata umidità, outdoor exposed environments without protection;
- Impact heavy loads, frantoi, large agitators.
Selezione & Matching Recommendations
- Frequent stop & high inertia loads → Select PI150 1R5G3Z (built-in braking chopper) + braking resistor;
- Remote speed regulation via 4~20mA / 0~10V signal: Directly use onboard AI analog input;
- Multi-drive monitoring via network: Adopt RS485 Modbus RTU communication;
- Compact control cabinet layout: Supports 35mm DIN rail mounting, alternative to larger general-purpose VFDs.
Full Technical Specifications of Powtran PI150 1R5G3
Model Distinction: PI150 1R5G3 (Standard, without built-in braking chopper); PI150 1R5G3Z (Built-in braking chopper)
Marca: Powtran, Compact Economical Sensorless Vector Mini VFD
- Scomposizione del codice modello
PI150: Compact economical vector inverter series
1R5: Rated power 1.5kW (R represents decimal point)
G: Constant torque general-duty model
3: 3-phase AC380V power supply
Z (Suffisso opzionale): Built-in braking chopper; No Z = without built-in braking chopper
- Main Circuit Rated Electrical Parameters
| Articolo | Specifica |
| Modello | PI150 1R5G3 |
| Potenza motore abbinata | 1.5 kW |
| Input Power Supply | 3-phase AC 380V~440V; Fluttuazione di tensione -15% ~ +10%; 50/60Hz |
| Corrente di ingresso nominale | 5.0 UN |
| Corrente di uscita nominale | 3.8 UN |
| Tipo di carico | G-type Constant Torque Load |
| Capacità di sovraccarico | 150% corrente nominale per 60 S; 180% corrente nominale per 2 S |
| Topology | AC-DC-AC Voltage-source IGBT Inverter |
| Gamma di frequenze di uscita | Vector mode: 0~320 Hz; V/F mode: 0~3200 Hz |
| Frequenza portante | 0.5 kHz ~ 16 kHz software adjustable |
| Braking Chopper | Standard unit without built-in chopper; 1R5G3Z equipped with built-in braking chopper (external braking resistor required) |
- Control Performance Index
| Articolo | Parametro |
| Modalità di controllo | Controllo V/F + Controllo vettoriale senza sensori (SVC) |
| Coppia di avviamento | 150% coppia nominale a 0,5 Hz (Vector Mode) |
| Speed Regulation Range (Vettore senza sensori) | 0.111111111 |
| Speed Stability Accuracy | ≤ ±0.5% (Synchronous Speed) |
| Tempo di risposta della coppia | ≤40 ms |
| Risoluzione della frequenza | Digital reference: 0.01 Hz; Analog reference: Massimo. frequency ×0.025% |
| AVR Automatic Voltage Regulation | Supportato, stabilizes output voltage under grid fluctuation |
| Motor Parameter Auto-tuning | Static Auto-tuning & Rotational Auto-tuning available |
- I/O Terminal Configuration (Circuito di controllo)
Digital Input DI
5-channel multi-function digital input terminals; NPN/PNP universal. Functions customizable: Run/Stop, Avanti/Indietro, Multi-speed, Ripristino guasto, External Emergency Stop, ecc.
Analog Input AI1
1-ingresso analogico del canale, selectable via onboard jumper
0~10V DC voltage signal / 4~20mA current signal
Used for external speed setting or PID feedback signal
Segnali di uscita
- Uscita relè (1 canale)
Capacità di contatto: 5A/250VAC; 1A/30VDC; Can be defined as fault output, running status, frequency arrival and other 40 funzioni
- DA1 Analog Output (1 canale)
0~10 V / 0~20mA optional; Available signals: Frequenza di uscita, output current, DC bus voltage, output torque and other 16 monitoring signals
Interfaccia di comunicazione
RS485 standard, ModBus RTU / ASCII protocol; Support upper computer & PLC network control.
- Built-in Function List
- Built-in PID regulator: Support constant pressure water supply, constant flow, constant tension closed-loop control
- Multi-speed operation: Fino a 16 velocità preimpostate
- DC Braking: Pre-run DC braking & stopping DC braking; braking current and time adjustable
- Jog operation, frequency skip function (avoid mechanical resonance point)
- Speed tracking startup: Smooth startup when motor is still rotating
- Timing operation function (Massimo. 6500 min)
- Fast current limiting algorithm to suppress overcurrent faults
- Independent acceleration/deceleration time setting: 0.0~6500.0 s
- Complete Protection Functions
Sovracorrente, Sovratensione, Sottotensione, VFD Overheat, Sovraccarico del motore, Output Earth Short Circuit, Stall Protection, External Fault, Communication Abnormality, PID Feedback Loss, Optional Input Phase Loss Detection.
- Dimensioni meccaniche & Parametri di installazione
| Articolo | Specifica |
| Dimensione complessiva (A × L × P) | 138 mm× 72 mm× 123.5 mm |
| Metodo di montaggio | 35Montaggio su guida DIN da mm / Screw wall mounting; Side-by-side installation of multiple units supported |
| Unit Weight | ca. 1.1 kg |
| Cooling Mode | Raffreddamento ad aria forzata |
| Protezione dall'ingresso | IP20 (Indoor cabinet installation only) |
- Condizioni operative ambientali
| Articolo | Specifica |
| Temperatura ambiente operativa | -10 ℃ ~ +50 ℃; Derating required above 40℃, declassare 3% per 1℃ temperature rise |
| Temperatura di conservazione | -20 ℃ ~ +65 ℃ |
| Umidità relativa | ≤90%RH, Condensation prohibited |
| Resistenza alle vibrazioni | Amplitude ≤5.9 m/s² (0.6G) |
| Altitudine | Full rating ≤1000m; Declassare 1% per 100m above 1000m, maximum applicable altitude 3000m |
| Ambiente operativo | Indoor use; Free of heavy dust, gas corrosivo, oil mist, water droplets and flammable & explosive substances |
- Note importanti sulla selezione
- For frequent braking & high inertia loads (rapid stop of conveyor lines): Must select 1R5G3Z + matched braking resistor; Standard version without braking chopper easily triggers OV overvoltage fault;
- If motor cable length>50m, reduce carrier frequency or install output reactor;
- No encoder interface, High-precision position synchronization & closed-loop tension winding control are not supported;
- G-type drive can be used for fan & pump variable torque loads; Select one power grade higher for heavy impact loads.
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