FD300-3 VFD Drive with V/f, SFVC & CLVC (+PG Card)
Selec ATSEL FD300 AC Drive – Sensorless Vector & V/F Control (Three-Phase 415V)
High-performance industrial AC drive with sensorless vector & closed-loop vector control, PID, AVR, 150% overload, RS485 Modbus, multi-speed logic, and advanced protection for pumps, fans, conveyors, mixers, and heavy machinery.
The Selec ATSEL FD300 is a high-performance industrial variable frequency drive designed for demanding 3-phase motor applications. It supports sensorless vector control, closed-loop vector control (PG card option), V/F mode, built-in PID, AVR (Automatic Voltage Regulation), multi-speed control, and robust protection functions. Ideal for pumps, fans, mixers, conveyors, and heavy-duty process machinery.
Key Features
Sensorless Flux Vector Control (SFVC) & Closed-Loop Vector Control (CLVC) (+ PG card)
V/F control with selectable V/F curves
Automatic Voltage Regulation (AVR) to stabilise motor voltage
Overload capacity:
G-Type: 150% for 1 min, 180% for 3 sec
P-Type: 120% for 1 min
PID Controller built-in
0–3200 Hz frequency in vector mode, 0–500 Hz in V/F mode
Carrier frequency up to 16 kHz, auto-adjusted per load
16-speed operation through DI logic or internal PLC function
Built-in counter & jog functions
Braking torque ~20%, up to 150% with brake resistor
RS485 Modbus RTU communication
Full motor protection: Over-voltage, under-voltage, over-current, overload, over-heat, short-circuit
IP20, –10°C to +50°C operating range
Technical Specifications
Electrical Ratings
| Parameter | Specification |
|---|---|
| Input Supply | 3-Phase 415V AC, 50/60 Hz |
| Voltage Fluctuation | 320–460V AC (±15%) |
| Frequency Fluctuation | ±5% |
| Maximum Output Frequency | Vector: 0–3200 Hz; V/F: 0–500 Hz |
| Carrier Frequency | 0.5–16 kHz (auto-adjust) |
| Input Frequency Resolution | Digital: Hz; Analog: Max F × 0.025% |
Control Characteristics
| Feature | Value |
|---|---|
| Startup Torque | 0.5 Hz / 150% (SFVC), 0 Hz / 180% (FVC) |
| Speed Range | 1:100 (SVC), 1:1000 (FVC) |
| Speed Accuracy | ±0.5% (SVC), ±0.02% (FVC) |
| Accel/Decel Time | 0–65000 sec (4 profiles) |
| V/F Modes | 3 preset + 1 programmable |
| Multi-Speed | Up to 16 speeds |
I/O & Communication
| Type | Specification |
|---|---|
| Digital Inputs | X1–X6 multifunction inputs (FWD/REV/JOG/speeds) |
| Analog Inputs | AI1: 0–10V; AI2: 0–10V/0–20mA |
| Relay Output | ROA–ROB (NC), ROA–ROC (NO) – Fault or Run status |
| Analog Output | 0–10V / 0–20mA |
| Digital Output | Y1/Y2 multifunction |
| Communication | RS485 MODBUS RTU |
Environmental Conditions
| Parameter | Specification |
|---|---|
| Operating Temp | –10°C to +50°C |
| Humidity | <90%, non-condensing |
| Vibration | <5.9 m/s² |
| Protection | IP20 |
Applications
Fans
Pumps
Mixers
Textile machines
Dyeing machines
Lithographic printing machines
Metalworking machines
Injection molding machines
Corrugated paper machines
What’s in the Box?
Selec ATSEL FD300 VFD
Keypad
Mounting hardware
User manual
Warranty card
FAQs
Q1. What control modes does the FD300 support?
Sensorless vector, closed-loop vector (with PG card), and V/F control.
Q2. Does the drive support multi-speed operation?
Yes, up to 16 preset speeds.
Q3. Is RS485 Modbus available?
Yes, Modbus RTU is standard.
Q4. What is the overload capacity?
G-Type: 150% rated current (1 min), 180% (3 sec).
P-Type: 120% rated current (1 min).
Q5. Does it support braking resistors?
Yes, braking torque increases from 20% to ~150% with a resistor.
Q6. Can it run high-speed spindles?
Yes—vector mode supports up to 3200 Hz output frequency.