Mitsubishi FR-A840-18.5K High-Performance Inverter

фр.：Инвертор

А：A800 high-performance series

8：8поколение

4：3-phase 400V class (380～500V)

0：Standard open type, IP20

18.5К：ND rated applicable motor power 18.5kW

-1：Japanese domestic specification (corresponding China domestic model: FR-A840-00470-2-60)

Основные электрические характеристики

Вход: 3-phase AC380～500V, 50/60Гц

без даты (Обычная обязанность, заводская настройка по умолчанию): For 18.5kW motor, rated output current 38A, 150% overload for 60s

ЛД (Light duty): Drives up to 22kW, rated current 43A; SLD super light duty max 47A

HD Heavy duty mode: For 15kW motor, 31А, 180% overload for 60s (selected for cranes, extruders and other high-shock loads)

Выходная частота: 0.2～590Hz; max 400Hz under vector control

Built-in braking transistor (18.5kW model includes built-in braking transistor, external braking resistor connectable)

Класс защиты: IP20 (cabinet mounting)

Контроль производительности

1. Безсенсорное векторное управление: High low-speed torque, 200% выходной крутящий момент при 0,5 Гц; supports asynchronous motor + PM permanent magnet synchronous motor drive, motor auto-tuning
2. Управление напряжением/частотой, advanced magnetic flux vector; closed-loop vector available with encoder option card FR-A8AP
3. Built-in simple PLC (sequence operation function), capable of simple logic programming to reduce external PLC I/O points
4. Speed response up to 50Hz, suitable for high-precision tension, веретено, winding and positioning applications

Коммуникация & Расширение

Стандартный RS485 (Модбус РТУ)

Optional communication cards: CC-Link, CC-Link IE Field, Профинет, Профибус-ДП, Девайснет, и т. д..

Терминалы: Цифровые входы, релейные выходы, open-collector outputs, AM analog voltage monitor, CA analog current monitor

Параметры: Operation panel, braking resistor FR-ABR, ЭМС-фильтр, Реактор постоянного тока, encoder interface card

Типичные сценарии применения (High Search Keywords)

Spindle drive, кран, лебедка, экструдер, centrifuge, вентилятор & водяной насос, ленточный конвейер, контроль напряжения, упаковочное оборудование, air compressor. The A800 series is positioned as a high-performance heavy-duty general inverter, superior to F800 for loads requiring fast dynamic response.

Экологические характеристики

Рабочая температура: -10℃～+50℃ (без глазури); SLD mode upper limit +40℃

Температура хранения: -20℃～+65℃

Влажность: Max 95%RH, неконденсирующийся; altitude ≤1000m (требуется снижение номинальных характеристик на высоте более 1000 м.)

Замена & Примечания по миграции

1. Замена устаревшей модели: FR-A740-18.5K upgraded to this model; mounting dimensions and terminal definitions differ, parameters cannot be copied directly and motor auto-tuning must be re-performed
2. Japanese `-1` vs domestic `-2-60`: Same hardware core, different firmware/standards, nameplate and factory preset parameters. Cannot be interchanged for procurement; region code must be distinguished during ordering
3. Внутренняя альтернативная ссылка: Инновация MD880, Infineon platform high-performance inverters

Quick Reference for Common Faults

E.OC1: Сверхток во время ускорения; E.OC2: Overcurrent at constant speed; E.OC3: Overcurrent during deceleration

E.OV: Перенапряжение на шине постоянного тока (high inertia loads require braking resistor)

E.THT: Inverter heatsink overheat (отказ вентилятора, blocked cooling duct)

E.THM: Motor electronic thermal overload

Советы по выбору

Shock loads & frequent start-stop → Use HD mode, it is recommended to select one higher capacity grade

Stable loads such as fans and pumps → Use LD/SLD for higher available motor power

High inertia shutdown → Braking resistor mandatory; 18.5kW unit has built-in braking transistor, no separate braking unit needed

Области применения Мицубиси FR-A840-18.5K-1 (A800 18.5kW 400V Class)

The FR-A840 is a high-performance heavy-duty vector inverter. Featuring high low-speed torque, быстрый ответ, support for torque/tension control and built-in braking transistor, it is ideal for heavy impact, контроль напряжения, spindle and lifting applications, and also supports energy-saving retrofit for fans and pumps.

1. Crane & Подъемное оборудование (HD Heavy Duty Mode Preferred)

Gantry crane, overhead crane, small winch, AS/RS stacker, hoist

Функции: High low-speed torque, anti-sway control, load holding for heavy weights, высокая инерционная нагрузка, частый старт-стоп; 18.5kW built-in braking transistor realizes fast braking with braking resistor

Application keywords: Crane, лебедка, stacker, подъем, anti-sway

2. Web Tension Control Industry (Обмотка & Расслабление)

Paper making, фильм, нетканое полотно, adhesive tape, проволока & cable drawing, printing machine, slitter

Supports sensorless tension control, dancer roller feedback, line speed synchronization, reduces web tension fluctuation and ensures uniform winding quality

Application keywords: Обмотка, unwinding, разрезание, покрытие, wire drawing, печать, контроль напряжения

3. Станок & Технологическое оборудование

CNC machine spindle, grinder, milling machine, stone cutting machine, engraving machine

Wide speed range, быстрый ответ, supports asynchronous and PM motor drive; closed-loop vector available with FR-A8AP encoder card for high-precision spindle speed regulation

Application keywords: Machine spindle, grinding machine, high-speed cutting

4. Экструзия & Rubber/Plastics Machinery

Plastic extruder, rubber extruder, pelletizer, internal mixer

Large load fluctuation, high starting torque requirement, stable screw speed control to stabilize extrusion pressure and improve product consistency

5. Транспортировка & Автоматизация логистики

Belt conveyor, роликовый конвейер, automated warehouse, sorting line, heavy-duty pallet conveyor

Multi-drive synchronous control, soft start to reduce mechanical shock; supports PM permanent magnet motor energy-saving solution

Application keywords: Heavy-duty conveyor, roller line, логистическая сортировка

6. General Fluid Equipment (Energy-saving Retrofit, LD/SLD Light Duty Mode)

Большой вентилятор, process water pump, air compressor, central air conditioning circulating pump

PID constant pressure/flow control, optimized excitation for energy saving; suitable for energy-saving retrofit of constant torque / переменные крутящие нагрузки

Примечание: F800 series is preferred for fans and pumps; A800 advantage is versatile capability for heavy-duty applications

7. Other Heavy Industry Applications

Press machine, auxiliary drive for shield machine, mixer, centrifuge, marine deck auxiliary machinery (with filter to meet class society certification)

Heavy-duty host for food packaging, large mixing equipment

Выбор & Ключевые моменты применения

1. Shock loads, подъем, extrusion, обмотка: HD heavy duty mode, 180% overload for 60s
2. Stable fan/pump loads: LD/SLD light duty mode for energy saving priority
3. High inertia shutdown (лебедка, обмотка): External braking resistor required, braking transistor built-in
4. Japanese FR-A840-18.5K-1 shares identical hardware with China domestic model but differs in factory preset parameters and standards; distinguish region version for project selection.
5. ФР-А840 (3-фаза 400В, Japanese domestic suffix -1, FR-A840-18.5K-1 listed here)

Power Model List (ND rated motor power)

1. FR-A840-0.4K-1
2. FR-A840-0.75K-1
3. FR-A840-1.5K-1
4. FR-A840-2.2K-1
5. FR-A840-3.7K-1
6. FR-A840-5.5K-1
7. FR-A840-7.5K-1
8. FR-A840-11K-1
9. FR-A840-15K-1
10. FR-A840-18.5K-1 (Ваша модель)
11. FR-A840-22K-1
12. FR-A840-30K-1
13. FR-A840-37K-1
14. FR-A840-45K-1
15. FR-A840-55K-1
16. FR-A840-75K-1
17. FR-A840-90K-1
18. FR-A840-110K-1
19. FR-A840-132K-1
20. FR-A840-160K-1
21. FR-A840-185K-1
22. FR-A840-220K-1
23. FR-A840-250K-1
24. FR-A840-280K-1

Corresponding China Domestic Models (Суффикс -2-60, current code type)

1. Other A800 Series Models (Full Product Line)
2. FR-A820 (3-phase 200V class): 0.4K～90K, суффикс -1 (японский) / -2-60 (Китай)
3. ФР-А840 (3-фаза 400В, main model as listed above): 0.4K～280K
4. ФР-А842 (High power split type, 400В): 315K～500K (separate rectifier + inverter unit)
5. FR-A846 (Dust-proof 400V): 0.4K～132K, enhanced cabinet dust resistance
6. FR-A840M (Module type 400V): 160К, 200К, common DC bus dedicated
7. Derivative suffixes:

Э: Global general version

подруга: Built-in CC-Link IE Field

GN: Built-in CC-Link

ЦРН: Class certified marine model

III. Ключевые примечания

1. Объяснение суффикса: -1 = Japanese domestic unit; -2-60 = China mainland unit. Hardware identical, factory parameters and safety standards differ; cannot be directly interchanged for purchase.
2. Models 18.5kW and below have built-in braking transistor; 22kW and above high power models require separate braking unit.
3. HD mode for heavy-duty applications; LD/SLD light duty for fans & pumps with derating operation.

Mitsubishi FR-A840-18.5K-1 Installation & Commissioning Full Tutorial

Model description: FR-A840-18.5K-1, 3-фаза 400В, 18.5кВт, встроенный тормозной транзистор (P/+, PR terminals for braking resistor); Japanese version, hardware identical to China FR-A840-00470-2-60, different factory default parameters.

⚠️ Safety Precaution: All wiring work must be performed with power off; capacitors retain high voltage after main power cut-off. Подожди хотя бы 10 minutes and confirm charge lamp is OFF before opening cover.

1. Механический монтаж (Cabinet Mounting IP20)
2. Installation Environmental Requirements

Ориентация монтажа: Vertical wall mount, horizontal or inverted mounting prohibited; fixed on non-combustible rigid steel plate

Температура окружающей среды: Operation -10℃～+50℃ (без глазури); SLD light duty ≤40℃; необходима вентиляция шкафа

Среда: Беречь от пыли, масляный туман, агрессивный газ, direct sunlight; humidity ≤95%RH non-condensing; altitude ≤1000m, требуется снижение номинальных характеристик на высоте более 1000 м.

Оформление шкафа: ≥100mm free space top & дно для отвода тепла; multiple units can be mounted side-by-side at ambient temperature, ≥50mm gap recommended for high-temperature environments

2. Этапы установки
3. Unpacking inspection: Check housing integrity, fan intact, operation panel and terminal cover complete; verify nameplate model FR-A840-18.5K-1
4. Position and drill holes, fasten with M6/M8 screws, tighten torque per manual to prevent vibration loosening
5. Remove front cover for main circuit and control circuit wiring; reinstall cover after wiring completion
6. Install optional parts (если требуется): braking resistor, ЭМС-фильтр, Реактор постоянного тока, FR-A8AP encoder card (for closed-loop vector)
7. Электрическая проводка (Key Terminals)

Клеммы главной цепи

Р/Л1, С/У2, T/L3: 3-phase 380～500V power input

ты, В, Вт: Подключение к 3-фазному асинхронному двигателю; Do NOT install capacitor or surge absorber on inverter output side; this will damage inverter

P/+, пиар: Braking resistor terminals (встроенный тормозной транзистор); remove PR-PX jumper before connecting braking resistor; braking resistor mandatory for winch, winding and high inertia loads

Ground terminal: Reliable earth connection required, earth resistance ≤10Ω; separate grounding for inverter and motor to reduce interference

Control Circuit Terminals (Обычно используется)

СТФ: Forward run; STR: Reverse run; СД: Digital input common terminal (sink type default)

RH/RM/RL: Multi-speed terminals

AU: Current input selection; Терминал 4: 4～20mA; Терминал 2: 0～10V voltage reference

ЯВЛЯЮСЬ: Analog voltage monitor; Калифорния: Analog current monitor

А/Б/С: Fault relay output (B-C closed, A-C open during fault)

Спецификация проводки: Main power cable recommended 10mm²; shielded motor cable preferred; separate routing for power cable and control cable; shielded control cable with single-end grounding.

III. Проверка перед включением (Mandatory to Prevent Damage)

1. Use multimeter in power-off state: No short circuit between R/S/T, У/В/Вт; no short circuit between P/+ and PR; no short circuit to ground
2. Confirm motor wiring correct, mechanical load decoupled (Decouple mechanical load for first trial run, test motor without load)
3. Verify braking resistor wiring without short circuit; all terminal screws tightened
4. Confirm input power AC380～480V, нет перенапряжения
5. Power On & Basic Parameter Setting (PU Panel Commissioning)

Panel keys: РЕЖИМ, SET confirm, ESC exit, PU/EXT toggle, регулировка ручки; PU = panel control; EXT = external terminal control

Шаг 1: Включение питания, сброс параметров (optional for new unit; recommended for used unit or motor replacement)

Enter parameter, set Pr.ALLC=1 for all parameter clear; power cycle to restore factory settings

Шаг 2: Basic motor nameplate parameters (Core for vector control, must be filled)

Шаг 3: Operation Mode Pr.79 (Наиболее распространенный)

Pr.79=0: PU/EXT switchable (заводская настройка по умолчанию)

Pr.79=1: PU panel mode, start/stop and frequency set via panel, для ввода в эксплуатацию

Pr.79=2: External terminal mode, STF/STR start-stop, potentiometer /4-20mA frequency reference, normal field operation

Pr.79=3: Terminal start, panel knob frequency setting (combined mode)

Step4: Control Mode Selection (A800 core)

Pr.800=0: Управление напряжением/частотой (фанаты, насосы, simple conveyor)

Pr.800=20: Безсенсорное векторное управление (asynchronous motor), recommended for crane, экструдер, обмотка, high low-speed torque

Pr.800=30: Closed-loop vector (FR-A8AP encoder card required for motor with encoder)

Шаг 5: Ускорение / Deceleration, Frequency Limit

Пр.0: Torque boost; normally not increased under vector control

Пр.1: Upper frequency limit; Pr.2: Lower frequency limit

Pr.7: Acceleration time; Пр.8: Deceleration time; extend deceleration time for high inertia loads and use braking resistor

1. Motor Auto-Tuning (Mandatory for Vector Control, Critical Step)

Two auto-tuning types: Static auto-tuning (стационарный двигатель) and Rotational auto-tuning (motor rotating, более высокая точность)

✅ Рекомендуется: Perform Rotational auto-tuning with load decoupled

1. Set Pr.96=11 (Rotational auto-tuning for asynchronous motor), press SET
2. Panel shows “READY”, press FWD start, inverter excites motor automatically, motor runs at low speed
3. Process lasts dozens of seconds, panel displays END after completion → auto-tuning successful
4. If ERR displayed: Check motor wiring, nameplate parameters, motor jamming, re-run auto-tuning

Static auto-tuning (when load cannot be decoupled): Pr.96=10; accuracy lower than rotational tuning

1. No-load Trial Run (PU Mode)
2. Pr.79=1, PU mode, confirm mechanical no-load, personnel keep clear of transmission mechanism
3. Set target frequency (e.g.10Hz), press FWD forward run
4. Monitor: Motor rotation direction, текущий, вибрация, шум; check output frequency & current on panel
5. Reverse test: РЕВ.; stop by STOP
6. Wrong rotation direction: Power off and swap U & V motor leads; Do NOT swap input R/S/T

Normal no-load current is 30%～60% of motor rated current; stop immediately if abnormal current occurs

VII. Loaded Commissioning (Switch to External Mode)

1. Wire external terminals: STF-SD (forward switch), potentiometer to Terminal2 & 5 for 0~10V frequency reference
2. Pr.79=2, switch to EXT external mode
3. Low frequency trial run (5~10Hz) under load, monitor torque, current and alarms
4. Gradually increase frequency and observe:

Heavy-duty applications (лебедка, экструдер): Enable HD heavy duty mode, 180% overload 60s

Фанаты & насосы: LD/SLD light duty mode

5. Tune acceleration/deceleration time and braking duty ratio; fine-tune tension parameters for tension control applications

VIII. Communication Commissioning (RS485/CC-Link/Profinet, Необязательный)

1. Встроенный RS485: Модбус РТУ, set station address, скорость передачи данных, parity bit
2. Communication option cards (FR-A8NP Profinet, FR-A8NC CC-Link): Install when power off, configure parameters, communication address and parameter mapping
3. Common Commissioning Alarm Troubleshooting

E.OC1: Сверхток во время ускорения; motor short circuit, mechanical jam, слишком короткое время разгона

E.OV: Перенапряжение на шине постоянного тока; high inertia shutdown, increase braking resistor capacity or extend deceleration time

E.THT: Перегрев инвертора; fan damage, заблокирован канал охлаждающего воздуха

E.UVT: Пониженное напряжение; input phase loss, large voltage drop

E.ALM: Перегрузка двигателя; incorrect Pr.9 thermal setting, mechanical binding

1. Handover & Документация
2. Upload parameters to operation panel for backup (parameter copy), save parameter document
3. Record auto-tuning result, motor parameters and alarm history
4. Retighten all terminals, reinstall cover, clean cabinet debris

Важные примечания

1. Japanese FR-A840-18.5K-1 has different safety specs and factory preset settings vs China -2-60 модель. Do not directly download Chinese project parameter files; re-run motor auto-tuning.
2. 18.5kW unit has built-in braking transistor, but braking resistor needs separate selection, нельзя опустить.
3. Motor auto-tuning is mandatory for vector control, otherwise low-speed torque is insufficient and trip may occur.