Delta VFD2800C43A-00 Vector Inverter

C2000 Plus (C2000) Ad alte prestazioni Vector Inverter

✅ Model Code Explanation

VFD: Azionamento a frequenza variabile

2800: Rated motor power 280kW

C: C2000 series

4: 3-phase 460V class (widely used for 380~480V power grids in domestic projects)

3: 3-phase output

UN: Codice della versione (air-cooled, built-in DC reactor, nessuna unità di frenatura integrata, nessun filtro EMC integrato)

-00: Standard version suffix

📌 Core Electrical Specifications

Rated applicable motor: 280kW (375HP)

Ingresso: 3-phase AC 380–480V, 50/60Hz

Pesante (HD) corrente di uscita nominale: 550UN; Severe Heavy-duty (SHD): 460UN

Capacità di sovraccarico (Servizio pesante): 150% per gli anni '60; 180% per 3 secondi; Severe Heavy Duty mode: 150% per gli anni '60, 200% per 3 secondi

Classe di protezione: IP00 (cabinet-mounted type, must be installed inside an electrical control cabinet)

Integrato: Reattore CC (standard, harmonic suppression), PLC integrato (10K passi), STO Safe Torque Off

Not built-in: Braking chopper, Filtro EMC; braking unit and filter must be externally fitted

Control algorithm: FOC Field-Oriented Vector Control. Supports induction motor / motore sincrono a magneti permanenti / synchronous reluctance motor, with PG encoder closed-loop and PG-less open-loop vector control.

🧩 Hardware & Struttura

Frame code: H1, cabinet-type high-power unit

Metodo di raffreddamento: Raffreddamento ad aria forzata

Comunicazione: Built-in Modbus; optional expansion cards: PROFINET, Ethernet/IP, CANopen, ecc.

I/O: Muti-function digital input/output, analog 4–20mA / 0–10 V; supports multi-speed, PID, master-slave parallel drive

🛠️ Scenari applicativi tipici

Heavy constant-torque loads:

Large extruders, mulini a sfere, attrezzature di sollevamento, grandi frantoi

Grandi tifosi & pompe dell'acqua, compressori, laminatoi, main belt conveyors

Multi-motor synchronization, master-slave parallel drive

⚠️ Selection & Punti chiave dell'installazione

1. This 460V model can be directly applied to domestic 380V power grids. Distinguish between heavy duty / light duty during selection. For 280kW heavy-duty loads, selection must be based on 550A current rating instead of power only.
2. IP00 rating: Never install exposed outside cabinet. For dusty or humid sites, use independent air-conditioned control cabinets.
3. Nessuna unità di frenatura integrata: External braking unit + braking resistor are mandatory for high-inertia or fast-stop applications.
4. Standard DC reactor reduces line-side harmonics; an external EMC filter is required if EMC compliance is needed.
5. Supports motor auto-tuning (stationary / rotating identification); parameter identification is required for permanent magnet motors.

🔁 Alternatives / Confronto di serie

Stessa serie: C2000 Plus VFD2800C43A-00 (modello attuale)

Fluid dedicated alternative: CP2000 VFD2800CP43A (fan & pump variable torque, different current rating)

Versione raffreddata a liquido: C2000-R water-cooled model for high-dust and high-temperature environments

Alternative domestiche: Inovance MD880, Invt GD800 series 280kW heavy-duty vector inverters

🚨 Common Fault Troubleshooting (C2000 High-power Models)

OCC: Cortocircuito in uscita, guasto a terra del cavo, IGBT damage. For high-power units, prioritize checking output contactors and motor insulation.

OV: Excessive regenerative energy, missing braking unit; deceleration time is too short.

OL: Sovraccarico del motore, current transformer drift, inaccurate auto-tuning parameters.

OH: Condotto dell'aria ostruito, aged cooling fan, poor cabinet heat dissipation (highly frequent for high-power cabinet models).

LF: Output phase loss, loose cable terminals, broken motor winding.

Motor Auto-tuning Parameter List (VFD2800C43A C2000)

Applicable for Induction Motor (IO SONO); 05-00=1 Rotating Auto-tuning (Recommended when motor can be decoupled and rotated); 05-00=2 Stationary Auto-tuning (Used if motor cannot rotate)

Pre-requisite Nameplate Parameters Entry

Auto-tuning Mode Selection (05-00)

05-00=1: Rotating Auto-tuning (Dynamic) [Preferito]

Decouple the motor from mechanical load; the shaft will rotate during operation. Automatically measures Rs, Rr, Lm, leakage inductance and no-load current. Highest vector control accuracy, suitable for extruders, mulini a sfere, hoists and other heavy-duty equipment.

05-00=2: Stationary Auto-tuning

Used when the motor is coupled to load and cannot rotate. Only measures stator resistance Rs. Lower control accuracy than rotating auto-tuning; for emergency use only.

PM Permanent Magnet Motor: 05-00=4; Synchronous Reluctance Motor: 05-00=11

Auto-tuning Operation Steps

1. Safety check: Disconnect mechanical load, ensure free rotation with no jamming, release brake, keep personnel away from drive shaft. For 280kW high-power units, verify output cable and motor insulation.
2. Enter the above nameplate parameters.
3. 00-10 Modalità di controllo: PG-less vector = 2; PG closed-loop =3.
4. Set 05-00=1 (Rotating Auto-tuning).
5. Press RUN on keypad; panel displays TUNE and auto-executes. Auto-tuning completes when TUNE disappears.
6. Verify calculated results and check identified parameters:

05-05: Motor no-load current

05-06: Stator resistance Rs

05-07: Rotor resistance Rr

05-08: Magnetizing inductance Lm

05-09: Leakage inductance Lx

7. Salva parametri, power cycle the drive.

⚠️ Notes for failed rotating auto-tuning: Motor not decoupled, brake not released, overlong cables, scarso isolamento, incorrect nameplate entries.

Master-Slave Parallel Drive Commissioning Steps (C2000 Multi-drive Parallel, Fiber Optic Parallel Scheme, VFD2800C43A)

Applicazione: Doppio / multi-motor coaxial drive (cintura, rolling mill, estrusore). Fiber optic parallel option card (accessory) supports torque sharing. Master receives speed command, slaves follow torque distribution.

Rule: Motor parameters and protection settings must be identical for master and slave drives. Only the master sends speed commands; slaves receive fiber synchronization signals.

Hardware Preparation

1. Install C2000 fiber optic parallel communication card for each inverter; connect master to slave via fiber patch cords in daisy chain topology for multi-drive systems.
2. Complete individual motor auto-tuning for each drive first (commission each unit standalone before parallel operation).
3. Output contactors of master and slave must close simultaneously; asynchronous closing is forbidden.
4. Alimentazione elettrica: Separate incoming power or common DC bus. For common bus scheme, pay attention to DC bus voltage balancing.

Configurazione dei parametri

Maestro

1. 00-62 = 1 (Master mode)
2. 00-10 = 0 【Speed control mode, parallel function only supports speed mode】
3. 00-17 Carrier frequency: ≤6kHz recommended for high power
4. 00-64 = 8 (bit3=1, enable parallel start)
5. Gruppo 05 motor parameters filled according to motor nameplate; standalone auto-tuning completed
6. Accelerazione / tempo di decelerazione 01-12/01-13 set to match mechanical inertia
7. Protection parameters (sovraccarico, sovracorrente, sovratensione) identical to slave drives
8. 00-62 = 2 (Slave mode)
9. Gruppo 05 parametri motori, protection parameters and carrier frequency must match master exactly
10. Command source: 00-21 = 6 (Fiber parallel command)
11. Frequency reference: 00-20 = 9 (Fiber parallel reference)
12. 11-00 =9 Enable master-slave torque distribution

Step-by-step Commissioning Procedure

1. Individual commissioning: Master and slave run separately with decoupled load, complete auto-tuning, test no-load operation and confirm no faults and normal current.
2. Spegnimento, wire fiber links, check firmware version of fiber card (view via 00-63).
3. Input all master/slave parameters, power cycle all inverters.
4. No-load linkage test: Run command to master, slaves start synchronously. Control no-load current difference within 5%.
5. Gradual loading: Increase load step by step, monitor output current of both inverters. Target: Equal current sharing.
6. Fine-tune torque compensation parameters (Gruppo 11): Adjust 11-xx torque balance parameters when current deviation is large; avoid large modifications.
7. Limit test: Full load and emergency stop test, check OV, OL faults. Confirm braking unit capacity for high inertia loads.

Common Master-Slave Parallel Issues

1. Large current difference between two drives: Poor standalone auto-tuning, inconsistent motor parameters, loose fiber connectors, poor mechanical coaxiality.
2. Startup jitter: Excessively high carrier frequency, reduce 00-17; acceleration/deceleration time too short.
3. Fiber communication fault: Inspect fiber end face, fiber card, wiring sequence, do not swap Tx/Rx.
4. Parallel function only supports speed mode, pure torque mode parallel is not supported.

Delta C2000 / C2000 Plus Full Model List [3-phase 460V VFDxxxxC43A] (Common for domestic projects, including VFD2800C43A)

Regola modello: VFD + codice di potenza + C +4(460V)+3(3-phase output)+UN (air-cooled, built-in DC reactor, no built-in EMC, nessun chopper di frenatura integrato, standard suffix -00)

Nota: C43E = same power with built-in EMC filter. Version A has no built-in EMC. D frame and above high-power models come with built-in DC reactor as standard.

✅ C2000 460V 3-phase VFDxxxxC43A Model List

📌 Derivative Sub-series within C2000 Family

1. C2000-HS: High-speed dedicated version, max output frequency up to 1500Hz for high-speed spindles, model VFDxxxxC43A-HS
2. C2000-R: Liquid water-cooled inverters for high dust and high heat environments, model VFDxxxxC43B-00R
3. C2000 230V version (single/3-phase 220V): suffix C23A, rarely used for high power in China
4. C2000 690V medium voltage version: suffix C63A for 690V grid, model VFDxxxxC63A

📋 Suffix Code Description (C43A models)

UN: Standard air cooling, nessun filtro EMC integrato; small A/B/C frames have built-in braking chopper. D frame and above high-power models have no built-in braking unit.

E: Same power with built-in EMC filter (VFDxxxxC43E)

B: Updated hardware revision for some high-power models

-00: Standard factory version

⚠️ Selection Remarks

1. Model coding note: In `VFD2800C43A`, 2800 = 280kW. The trailing two zeros are placeholders, not 2800kW, a common misinterpretation.
2. Heavy-duty HD current is the core selection criterion. Do not select based purely on kW rating. For ball mills, montacarichi, estrusori, select according to heavy-duty current.
3. H/H1 frame (≥132kW): IP00 cabinet installation, built-in DC reactor. Nessuna unità di frenatura integrata. External braking unit + resistor required for fast stop.