ABB ACS350-03E-23A1-4 Micro Drive

(Full model number; sufijo 4 = 380~480V three-phase)

Estado: The ACS350 series is discontinued. No new production from TEJIDO; only surplus stock and second-hand units are available as spare parts.

Posicionamiento del producto: General-purpose OEM micro drive, widely used on machine tools, transportadores, fans and pumps for legacy equipment.

✅ Model Code Breakdown

ACS350: Serie de productos, legacy general machinery drive

03: Three-phase input power supply

mi: Filtro EMC incorporado (50Hz version)

23A1: Corriente de salida nominal 23.1 A

4: Clase de voltaje, 380~480V three-phase

✅ Especificaciones técnicas clave

potencia nominal: 11 kilovatios (15 caballos de fuerza)

Rated output current I2N: 23.1 A

Suministro de insumos: 3-fase 380–480 V, 48~63 Hz

Producción: 0~input voltage, 0~500 Hz

Overload capacity: 150% I2N for 60 seconds per 10 minutos; 180% I2N for 2 seconds at startup

Tamaño del marco: R3

Clase de protección: IP20

Standard feature: Built-in braking chopper

Frecuencia de conmutación: Por defecto 4 kilociclos; selectable 4/8/12/16 kilociclos

Modos de control: V/F scalar control, sensorless vector control for asynchronous motors; native Modbus RTU; optional fieldbus adapters

Teclado: ACS-CP-A / ACS-CP-C (interchangeable with ACS355)

Condiciones ambientales: No derating from -10℃ to +40℃; 10% power derating at 50℃; ≤1000 m altitude; 1% reducción de potencia por 100 m arriba 1000 metro.

✅ Direct Replacement Models (Field Retrofit Priority)

1. Pin-to-pin compatible replacement: ACS355-03E-23A1-4 (11 kilovatios, 23.1 A, Frame R3)

Identical terminal layout, macros and keypad; direct swap for most installations with minor parameter adjustments. The ACS355 is also phased out with dwindling stock.

2. Long-term new-generation upgrade: ACS380-04S-026A-4 (11 kilovatios, 26 A)

Similar IO logic; equipado con STO (Desconexión de par segura); suministro estable. Requires rechecking wiring, application macros and communication parameters.

✅ Spare Parts List

Teclado: ACS-CP-A (Assistant Panel, recomendado) / ACS-CP-C (Basic Panel)

Resistencia de frenado: Select according to deceleration duty; braking chopper is built-in, Se requiere resistencia externa

Fieldbus adapters: FDNA-01 (DispositivoNet), FPBA-01 (Profibus DP), FENA-01 (Ethernet)

EMC note: E-type includes integrated EMC filter; U-type has no built-in filter.

✅ Aplicaciones típicas

Cintas transportadoras, maquinaria de embalaje, equipo de carpintería, fans, bombas de agua, small machine tool spindles and general constant-torque loads.

✅ Common Fault Troubleshooting (ACS350 Series Common Issues)

1. sobrecorriente: Cortocircuito del motor, damaged power cable, atasco mecánico, tiempo de aceleración demasiado corto, failed IGBT module
2. Sobretensión: Desaceleración excesivamente rápida, missing or mismatched braking resistor, alta tensión de red
3. falla a tierra: Breakdown of motor insulation, leakage to ground on output cables
4. Modbus communication loss: Check terminating resistor, A/B polarity, station address and baud rate
5. No keypad display: 24V control supply failure, faulty control board or power board

✅ Supplementary Notes

Parameters cannot be copied directly between ACS350 and ACS355; parameter files must be re-uploaded/downloaded. Although the keypad is interchangeable, firmware and parameter groups differ. Always compare the original parameter list during replacement.

ABB ACS350-03E-23A1-4 (11 kilovatios) Engineering Application Cases

Descripción: The ACS350 is a legacy OEM machinery drive with built-in EMC filter, Chopper de frenado integrado, embedded sequence programming and native Modbus RTU, ideal para cargas de par constante. Below are the most common field applications for this power rating, including process description, control scheme, parámetros clave, risk points and retrofit notes.

Caso 1: Main Belt Conveyor on Packaging Lines (Classic Constant-Torque Application)

Carga: 11 kW conveyor motor for bulk material handling; arranque/parada suave, anti-jam and speed synchronization between upstream/downstream sections required.

Esquema de control

modo de control: Control vectorial sin sensores (99.04=1)

Speed reference: AI1 receives potentiometer/PLC analog signal; digital inputs select multi-speed preset (feed, normal speed, low-speed material clearing)

Entrelazar: Photoelectric jam signal from downstream fed into DI for automatic speed reduction; emergency stop wired to drive safety circuit

Frenado: Built-in chopper + external braking resistor for fast stopping to prevent material pile-up

Key Parameter Settings

Aceleración: 8 s; Deceleration: 6 s; stall protection enabled

Application macro: Factory default macro; use embedded sequence programming to reduce PLC I/O count

Field Benefits: High low-speed torque without belt slip; lower mechanical shock and belt wear compared with star-delta starters. This is a widely used legacy application; preferred replacement part is ACS355-03E-23A1-4.

Riesgo: Regular dust cleaning required for dusty environments; overvoltage alarms occur if deceleration is too fast.

Caso 2: Woodworking Machinery – Sanding Machine Feed Roller Drive

Carga: Feed roller of sanding equipment; fluctuating load, stable low-speed torque without speed fluctuation to avoid sanding marks on workpieces.

Esquema de control

Control de vectores; DI run command; AI speed signal from main machine controller

Multi-speed selection for different workpiece thicknesses (low speed for thick boards, high speed for thin boards)

150% / 60 s overload protection to handle board jamming

Environmental Features: Cabinet-mounted IP20 unit for dusty woodworking workshops; built-in EMC filter on E-version prevents interference with proximity switches and encoders.

Limitación: No STO safety function. Upgrade to ACS380 for new machine retrofits.

Caso 3: Screw Lifts / Bucket Elevators in Food Production Lines

Carga: 11 kW vertical material handling with potential energy load; anti-rollback on shutdown.

Esquema de control

Standard built-in braking chopper with external resistor to prevent load coasting downhill

Digital terminal start/stop; 4–20 mA analog speed control; Modbus RTU communication with PLC host

Level interlock: Automatic speed reduction on low material level, auto-stop on full bin

Process Notes: Waterproof control cabinet for humid conditions; strict earthing and high motor insulation resistance required.

Observación: The ACS350 was ABB’s flagship OEM drive for bakery, extrusion and feed processing lines.

Caso 4: Extruder Auxiliary Traction Drive (Plastics Industry)

Carga: Traction roller on plastic extrusion lines; constant torque with speed proportional synchronization with main extruder.

Esquema de control

Opción 1: AI speed follow signal from main drive (proportional speed regulation)

Opción 2: Modbus RTU bus synchronization with master drive

Vector control maintains stable tension at low speed to avoid breakage or material accumulation

Embedded sequence programming for start delay and stop sequence to simplify PLC logic

Comparación: Main extruders typically use ACS510/ACS550 while ACS350 serves as a cost-effective auxiliary drive. Re-synchronization logic is required when retrofitting to ACS380.

Caso 5: climatización & Water Treatment Circulation Pumps (Par variable, PID Closed Loop)

Carga: 11 kW cooling water circulation pump or constant-pressure water supply pump.

Esquema de control

modo de control: V/F scalar control; built-in PID macro; 4–20 mA pressure transmitter feedback to AI2

Goal: Maintain constant pipe pressure with variable speed energy saving

One-duty-one-standby rotation must be implemented via external PLC; the ACS350 does NOT support built-in PFC pump cycling function (difference from ACS510)

Ahorro de energía: 20%~40% power reduction under partial load compared with direct-on-line operation.

Caso 6: Small CNC Machine Tools – Spindle Cooling & Conveyor Drives

Carga: Machine tool feed rollers, cooling fans and chip conveyors with 11 kW rating.

Esquema de control

Keypad/terminal control with multi-speed preset linked to CNC M-codes; FPBA-01 Profibus DP adapter for CNC system networking

EMC compliance guaranteed by integrated EMC filter on E-version

Limitación: Only for asynchronous motors; not compatible with permanent magnet synchronous motors. No longer specified for new machine builds.

Caso 7: Roller Feeders for Sand & Building Material Auxiliary Lines

Carga: Roller feeders and apron feeders with frequent start-stop and shock loading.

Esquema de control

Vector control to boost starting torque; stall protection triggers alarm on material jamming

Modbus RTU remote control via central PLC; real-time current and fault code monitoring

Ambiente: Installed in standalone ventilated cabinets for heavy dust conditions; regularly test output cable insulation to prevent earth faults.

General Commissioning & Retrofit Summary (ACS350-03E-23A1-4)

1. Cargas de par constante (transportadores, carpintería, tracción, ascensores): Use sensorless vector control and take full advantage of the built-in braking chopper.
2. Cargas de par variable (fans & zapatillas): Use V/F scalar control + PID incorporado. Note that PFC pump rotation is not supported on ACS350 and requires external PLC logic.
3. Comunicación: Native Modbus RTU; optional extensions: Profibus DP (FPBA-01), DispositivoNet (FDNA-01).
4. Reemplazo de piezas de repuesto

Direct like-for-like swap: ACS355-03E-23A1-4 (identical terminals & teclado; no direct program copy due to parameter group differences)

Long-term upgrade: ACS380-04S-026A-4 (STO equipped; IO and communication logic must be re-engineered)

5. Shortcomings: No STO safety torque-off function; fully discontinued with only surplus and second-hand stock available.
6. Model Prefix Code Definition

01: Single-phase input 200–240 V

03: Entrada trifásica

mi: Filtro EMC incorporado (this model = 03E); Ud.: No built-in filter; incógnita: Placeholder for E/U in selection codes

Sufijo 2 = 200–240 V; sufijo 4 = 380–480 V (this model suffix = 4)

Rango de potencia: 0.37 kilovatios ~ 22 kilovatios, frame sizes R0/R1/R2/R3/R4

1. Trifásico 380–480 V (03E-xxx-4 Series, Primary Model Range)

ACS350-03E-XXAXX-4 (con filtro EMC incorporado)

Filter-free version: Replace 03E with 03U; power and current ratings remain identical.

III. Three-phase 200–240 V (03E-xxx-2)

1. Single-phase 200–240 V (01E-xxx-2, Single-phase Supply)

Filter-free version: Change 01E to 01U.

1. Cross-Model Replacement List (Spare Part Retrofit)
2. Direct pin-compatible replacement: ACS355-03E-23A1-4 (11 kilovatios, 23.1 A, R3)

Same terminal layout and keypad; minor parameter tuning only. The ACS355 is also discontinued with limited stock.

2. New-generation long-term upgrade: ACS380-04S-026A-4 (11 kilovatios, 26 A)

Equipped with STO Safe Torque Off; suministro estable; requires rework on wiring, macros and communication settings.

1. Observaciones complementarias
2. Todos los modelos: Protección IP20, built-in braking chopper, native Modbus RTU included as standard.
3. Code definitions: E = Built-in EMC Filter; U = No EMC Filter; X = E/U selection placeholder.
4. The entire ACS350 series is officially end-of-life; only surplus stock and second-hand spare parts are available.
5. Original ABB order codes can be retrieved upon model number request.