Complete Technical Documentation for PI150 1R5G3
- 모델 코드 분석
PI150 1R5G3
PI150: 제품 시리즈, 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
- 핵심 전기 사양
| 목 | 매개변수 |
| 모델 | PI150 1R5G3 |
| 정격 출력 | 1.5 kW |
| 전원공급장치 | 3-phase AC 380V~440V (-15%~+10%), 50/60헤르츠 |
| 정격 출력 전류 | 3.8 에이 |
| 부하 유형 | 일정한 토크 (G type) |
| 과부하 용량 | 150% 60초 동안 정격 전류; 180% rated current for 2s |
| 제어 모드 | V/F 제어, 센서리스 벡터 제어 (SVC) |
| 시작 토크 | 150% 0.5Hz에서 정격 토크 (Sensorless Vector Mode) |
| 출력 주파수 범위 | Vector mode: 0~320Hz; V/F mode: 0~3200Hz |
| 캐리어 주파수 | 0.5kHz~16kHz adjustable |
| 의사소통 | 표준 RS485, Modbus RTU/ASCII Protocol |
| PID Function | 내장 PID, supports constant pressure water supply & flow closed-loop control |
| Braking Chopper | Standard unit without built-in braking chopper; Suffix Z version equipped with built-in braking chopper |
| I/O Terminals | 5-channel Digital Input (에서), 1-channel Relay Output, 1-channel Analog Input AI (0~10V / 4~20mA) |
- 기계적 치수 & 설치
전반적인 차원 (H × W × D): 138 × 72 × 123.5 mm
장착 방법: 35mm DIN 레일 장착 / Screw wall mounting
무게: 대략. 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.
- 일반적인 애플리케이션 시나리오
컨베이어, small fans, 물 펌프, 교반기, 목공 기계, 포장 기계, light-duty small machine tool spindles.
- 배선 지침
- 주회로 단자: 아르 자형, 에스, 티 (3-phase Input); 유, 다섯, 여 (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: 단상 220V; G3: 3-위상 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 (향상된 기능)
- 브랜드 간 동등한 대안
Delta VFD015E43A / VFD015EL43A
Inovance MD200T1.5B
Schneider ATV312HU15N4
- 일반적인 오류 코드 (Abbreviated)
| 오류 코드 | 설명 | 문제 해결 방향 |
| OC | Over Current | Motor short circuit, load stall, insufficient acceleration/deceleration time |
| OV | Over Voltage | Large regenerative energy, braking resistor required; excessive grid voltage |
| 오 | 과열 | Blocked heat dissipation, 높은 주변 온도, excessive carrier frequency |
| 루 | 저전압 | 입력 위상 손실, 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)
제품 포지셔닝
PI150 is an economical compact sensorless vector VFD. 컴팩트한 사이즈, 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.
정격사양: 1.5kW, 3-위상 380V, constant torque G model, standard version without built-in braking chopper.
- General Automation Equipment Industry (주류 애플리케이션)
- 포장기계
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.
- 목공 기계
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.
- 유체 장비 (팬 & 슬리퍼)
- Small workshop induced draft fans, 배기 팬, 캐비닛 냉각 팬;
- Small circulating water pumps, cooling water pumps, 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.
- 경공업 & 식품기계
Small agitators, light screw conveyors, food production line conveyors, simple filling transport mechanisms.
적합한 환경: Normal temperature, light dust; Direct spraying of high humidity & water vapor on control cabinet is forbidden.
- 플라스틱 & 고무 기계
소형 컨베이어, 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).
- 공조, 환경 보호 & 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, 물 & fertilizer integrated machine transfer pumps, light material conveying equipment.
권장되지 않음 / Forbidden Application Scenarios
- 리프팅 장비, heavy hoists, 엘리베이터 (No safety braking certification, strictly prohibited);
- High-speed tension winding, frequent rapid braking with high inertia loads (No built-in braking chopper, prone to OV overvoltage fault);
- 고정밀 위치 결정 & synchronous control applications (No encoder feedback support);
- Explosion hazardous areas (방폭 인증 없음);
- Strong corrosive, 높은 습도, outdoor exposed environments without protection;
- Impact heavy loads, 파쇄기, large agitators.
선택 & 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 (기준, without built-in braking chopper); PI150 1R5G3Z (제동 초퍼 내장)
상표: Powtran, Compact Economical Sensorless Vector Mini VFD
- 모델 코드 분석
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
지 (선택적 접미사): 제동 초퍼 내장; No Z = without built-in braking chopper
- Main Circuit Rated Electrical Parameters
| 목 | 사양 |
| 모델 | PI150 1R5G3 |
| 일치하는 모터 전력 | 1.5 kW |
| 입력 전원 공급 장치 | 3-phase AC 380V~440V; Voltage fluctuation -15% ~ +10%; 50/60헤르츠 |
| 정격 입력 전류 | 5.0 에이 |
| 정격 출력 전류 | 3.8 에이 |
| 부하 유형 | G-type Constant Torque Load |
| 과부하 용량 | 150% 정격 전류 60 에스; 180% 정격 전류 2 에스 |
| 토폴로지 | AC-DC-AC Voltage-source IGBT Inverter |
| 출력 주파수 범위 | Vector mode: 0~320 Hz; V/F mode: 0~3200 Hz |
| 캐리어 주파수 | 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
| 목 | 매개변수 |
| 제어 모드 | V/F 제어 + 센서리스 벡터 제어 (SVC) |
| 시작 토크 | 150% 0.5Hz에서 정격 토크 (Vector Mode) |
| 속도 조절 범위 (센서리스 벡터) | 0.111111111 |
| Speed Stability Accuracy | ≤ ±0.5% (Synchronous Speed) |
| 토크 응답 시간 | ≤40 ms |
| 주파수 분해능 | Digital reference: 0.01 헤르츠; Analog reference: 맥스. frequency ×0.025% |
| AVR Automatic Voltage Regulation | 지원됨, stabilizes output voltage under grid fluctuation |
| Motor Parameter Auto-tuning | Static Auto-tuning & Rotational Auto-tuning available |
- I/O Terminal Configuration (제어 회로)
Digital Input DI
5-channel multi-function digital input terminals; NPN/PNP universal. Functions customizable: Run/Stop, 정방향/역방향, Multi-speed, Fault Reset, External Emergency Stop, 등.
Analog Input AI1
1-채널 아날로그 입력, selectable via onboard jumper
0~10V DC voltage signal / 4~20mA current signal
Used for external speed setting or PID feedback signal
Output Signals
- 릴레이 출력 (1 채널)
접점 용량: 5A/250VAC; 1A/30VDC; Can be defined as fault output, running status, frequency arrival and other 40 기능
- DA1 Analog Output (1 채널)
0~10V / 0~20mA optional; Available signals: 출력 주파수, 출력 전류, DC bus voltage, output torque and other 16 monitoring signals
통신 인터페이스
표준 RS485, 모드버스 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: 최대 16 preset speeds
- 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 (맥스. 6500 분)
- Fast current limiting algorithm to suppress overcurrent faults
- Independent acceleration/deceleration time setting: 0.0~6500.0 s
- Complete Protection Functions
과전류, 과전압, 저전압, VFD Overheat, 모터 과부하, Output Earth Short Circuit, Stall Protection, External Fault, Communication Abnormality, PID Feedback Loss, Optional Input Phase Loss Detection.
- 기계적 치수 & 설치 매개변수
| 목 | 사양 |
| 전반적인 차원 (H × W × D) | 138 mm × 72 mm × 123.5 mm |
| 장착 방법 | 35mm DIN 레일 장착 / Screw wall mounting; Side-by-side installation of multiple units supported |
| 단위 중량 | 대략. 1.1 kg |
| Cooling Mode | 강제 공기 냉각 |
| 유입 방지 | IP20 (Indoor cabinet installation only) |
- Ambient Operating Conditions
| 목 | 사양 |
| 작동 주변 온도 | -10 ℃ ~ +50 ℃; 40℃ 이상에서는 디레이팅 필요, 경감하다 3% per 1℃ temperature rise |
| 보관 온도 | -20 ℃ ~ +65 ℃ |
| 상대습도 | ≤90%RH, Condensation prohibited |
| 진동 저항 | Amplitude ≤5.9 m/s² (0.6g) |
| 고도 | Full rating ≤1000m; 경감 1% per 100m above 1000m, maximum applicable altitude 3000m |
| 운영 환경 | Indoor use; Free of heavy dust, 부식성 가스, 오일미스트, water droplets and flammable & explosive substances |
- 중요한 선택 참고 사항
- 자주 제동하는 경우 & 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.
접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지

















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