Powtran PI150 1R5G3 Mini Variable Frequency Drive

Complete Technical Documentation for PI150 1R5G3

1. Defalcarea codului de model

PI150 1R5G3

PI150: Seria de produse, 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

2. Specificații electrice de bază

3. Dimensiuni mecanice & Instalare

Dimensiunea de ansamblu (Înălțime × L × D): 138 × 72 × 123.5 mm

Metoda de montare: 35mm Montare pe șină DIN / Screw wall mounting

Greutate: Aproximativ. 1.1 kg

4. 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.

5. Scenarii tipice de aplicare

Transportoare, evantai mici, pompe de apa, agitatori, utilaje pentru prelucrarea lemnului, utilaje de ambalare, light-duty small machine tool spindles.

6. Ghid de cablare
7. Main Circuit Terminals: R, S, T (3-phase Input); U, V, W (Connect to 3-phase motor);
8. Version without suffix Z: For rapid stop function, external braking resistor + external braking chopper are required;
9. Analog input AI supports 0~10V voltage / 4~20mA current, selectable via onboard jumper;
10. RS485 terminals A/B, support PLC networking communication.
11. Selection Pitfall Guide
12. ❌ Do not confuse voltage grades

G1: Monofazat 220V; G3: 3-phase 380V; Direct replacement is prohibited

2. ❌ For frequent start-stop & high inertia loads: Prioritize 1R5G3Z (with built-in braking chopper)
3. ❌ 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
4. If ambient temperature＞40℃ or installed inside sealed cabinet, derating operation and enhanced ventilation are required
5. Compatible Alternatives
6. Same-brand Upgrade: Powtran PI160 1R5G3 (funcții îmbunătățite)
7. Cross-brand equivalent alternatives

Delta VFD015E43A / VFD015EL43A

Inovance MD200T1.5B

Schneider ATV312HU15N4

9. Coduri de eroare comune (Abbreviated)

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)

Poziționarea produsului

PI150 is an economical compact sensorless vector VFD. Dimensiune compactă, DIN rail mounting support, integrated V/F control + SVC sensorless vector control with excellent low-frequency torque. Ideal for small & medium power, standard working conditions, installation space limited drive applications.

Rated Specification: 1.5kW, 3-phase 380V, constant torque G model, standard version without built-in braking chopper.

1. General Automation Equipment Industry (Mainstream Applications)
2. Mașini de ambalare

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.

2. Utilaje pentru prelucrarea lemnului

Light feed conveyors, simple sanding transport, small edge trimming feeding mechanism, light roller conveyor drive.

3. Logistics Conveying Equipment

Light belt conveyors, roller conveyor lines, sorting branch transport mechanisms, light-duty small elevators.

2. Fluid Equipment (Fani & Pompe)
3. Small workshop induced draft fans, ventilatoare de evacuare, cabinet cooling fans;
4. Small circulating water pumps, pompe de apa de racire, 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.

3. Industria ușoară & Utilaje alimentare

Small agitators, 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.

4. Plastic & Mașini de cauciuc

Small conveyors, simple traction machines, light auxiliary extruder transport, small pelletizing conveying equipment.

5. 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).

6. HVAC, Protecția mediului & Water Treatment Auxiliaries

Small waste gas treatment fans, water treatment dosing agitators, small sewage circulating pumps, dust removal branch fans.

7. Agricultural Machinery Accessories

Greenhouse circulating fans, apă & fertilizer integrated machine transfer pumps, light material conveying equipment.

Nerecomandat / Forbidden Application Scenarios

1. Lifting equipment, heavy hoists, lifturi (No safety braking certification, strictly prohibited);
2. High-speed tension winding, frequent rapid braking with high inertia loads (Fără elicopter de frânare încorporat, prone to OV overvoltage fault);
3. Poziționare de înaltă precizie & synchronous control applications (No encoder feedback support);
4. Explosion hazardous areas (Fără certificare împotriva exploziilor);
5. Strong corrosive, umiditate ridicată, outdoor exposed environments without protection;
6. Impact heavy loads, concasoare, large agitators.

Selecţie & Matching Recommendations

1. Frequent stop & high inertia loads → Select PI150 1R5G3Z (built-in braking chopper) + braking resistor;
2. Remote speed regulation via 4~20mA / 0~10V signal: Directly use onboard AI analog input;
3. Multi-drive monitoring via network: Adopt RS485 Modbus RTU communication;
4. 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 (Chopper de frânare încorporat)

Marca: Powtran, Compact Economical Sensorless Vector Mini VFD

1. Defalcarea codului de model

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 (Sufix opțional): Chopper de frânare încorporat; No Z = without built-in braking chopper

2. Main Circuit Rated Electrical Parameters

3. Control Performance Index

4. I/O Terminal Configuration (Circuit de control)

Digital Input DI

5-channel multi-function digital input terminals; NPN/PNP universal. Functions customizable: Run/Stop, Înainte/înapoi, Multi-speed, Resetare eroare, External Emergency Stop, etc.

Analog Input AI1

1-canal de intrare analogică, selectable via onboard jumper

0～10V DC voltage signal / 4～20mA current signal

Used for external speed setting or PID feedback signal

Output Signals

1. Ieșire releu (1 canal)

Capacitate de contact: 5A/250VAC; 1A/30VDC; Can be defined as fault output, running status, frequency arrival and other 40 funcții

2. DA1 Analog Output (1 canal)

0~10V / 0~20mA optional; Available signals: Frecvența de ieșire, curent de ieșire, DC bus voltage, output torque and other 16 monitoring signals

Interfață de comunicare

RS485 standard, Modbus RTU / ASCII protocol; Support upper computer & PLC network control.

5. Built-in Function List
6. Built-in PID regulator: Support constant pressure water supply, constant flow, constant tension closed-loop control
7. Multi-speed operation: Până la 16 preset speeds
8. DC Braking: Pre-run DC braking & stopping DC braking; braking current and time adjustable
9. Jog operation, frequency skip function (avoid mechanical resonance point)
10. Speed tracking startup: Smooth startup when motor is still rotating
11. Timing operation function (Max. 6500 min)
12. Fast current limiting algorithm to suppress overcurrent faults
13. Independent acceleration/deceleration time setting: 0.0～6500.0 s
14. Complete Protection Functions

Supracurent, Supratensiune, Subtensiune, VFD Overheat, Suprasarcina motorului, Output Earth Short Circuit, Stall Protection, External Fault, Communication Abnormality, PID Feedback Loss, Optional Input Phase Loss Detection.

7. Dimensiuni mecanice & Parametrii de instalare

8. Ambient Operating Conditions

9. Important Selection Notes
10. Pentru frânări frecvente & high inertia loads (rapid stop of conveyor lines): Must select 1R5G3Z + matched braking resistor; Standard version without braking chopper easily triggers OV overvoltage fault;
11. If motor cable length＞50m, reduce carrier frequency or install output reactor;
12. No encoder interface, High-precision position synchronization & closed-loop tension winding control are not supported;
13. G-type drive can be used for fan & pump variable torque loads; Select one power grade higher for heavy impact loads.