VFD Programming Course

Lesson 1 • Drive Topology and Component Identification

Identifies physical drive sections and peripheral components. Prepares students to safely navigate hardware before any programming task.

Lesson 2 • AC Motor Operation Principles

Covers synchronous speed, slip, torque-speed curves, and motor nameplate data. Establishes the motor behaviour that drives must control.

Lesson 3 • Drive Ratings and Selection Criteria

Teaches voltage class, current rating, and duty-cycle selection. Ensures students match drive specifications to load requirements correctly.

Lesson 1 • Mechanical Mounting and Enclosure Requirements

Covers clearance, orientation, and enclosure protection ratings. Proper mounting prevents overheating and vibration damage during operation.

Lesson 2 • Power and Control Terminal Wiring

Details input power, motor output, and control signal wiring. Correct terminal connections are prerequisite to any drive commissioning step.

Lesson 3 • Earthing and Shielding Techniques

Explains protective earth (PE) conductor sizing, shield termination, and EMC earthing. Correct earthing prevents nuisance trips and protects connected equipment.

Lesson 1 • Parameter Upload, Download, and Reset

Covers copying parameters to keypad memory and restoring factory defaults. These skills enable rapid replication and recovery across multiple drives.

Lesson 2 • Keypad Layout and Display Interpretation

Maps keypad keys to their functions and explains status display codes. Fluent keypad use is the entry point for all programming tasks.

Lesson 3 • Parameter Group Organisation

Explains how parameters are grouped by function and numbered. Understanding group structure accelerates parameter location during commissioning.

Lesson 1 • Frequency Limits and Output Verification

Sets minimum and maximum output frequency limits and verifies drive output with a meter. Limits protect the load; output verification confirms correct wiring.

Lesson 2 • Command and Frequency Reference Sources

Explains keypad, terminal, and communication command sources and how to select them. Source selection determines how the drive receives run and speed commands.

Lesson 3 • Acceleration and Deceleration Ramp Settings

Covers linear, S-curve, and custom ramp profiles and their parameter settings. Correct ramp times prevent mechanical shock and overcurrent trips.

Lesson 1 • Auto-Tuning Procedures and Validation

Guides static and rotational auto-tune execution and result validation. Auto-tuning populates motor model parameters that underpin vector control accuracy.

Lesson 2 • Closed-Loop Vector Control with Encoder

Explains encoder wiring, pulse count configuration, and speed feedback tuning. Closed-loop vector delivers precise speed and torque control for demanding loads.

Lesson 3 • Sensorless Vector Control Setup

Covers motor parameter identification and flux current tuning for open-loop vector mode. Sensorless vector improves low-speed torque without an encoder.

Lesson 1 • Analog Output Configuration

Programmes analog output signals to represent speed, current, torque, or power. Analog outputs feed monitoring instruments and supervisory control systems.

Lesson 2 • Analog Input Scaling and Filtering

Configures 0–10 V and 4–20 mA input ranges, gain, bias, and filter time. Proper scaling maps sensor signals accurately to speed or torque references.

Lesson 3 • Digital Output and Relay Configuration

Assigns drive status signals to digital output and relay terminals. Outputs provide feedback to PLCs, indicators, and safety circuits.

Lesson 1 • Fault Code Interpretation and Logging

Explains fault code structure, fault history buffer, and operating data at fault. Accurate fault reading is the first step in every troubleshooting sequence.

Lesson 2 • Motor Thermal Protection Settings

Configures electronic thermal overload, motor temperature input, and derating curves. Thermal protection prevents winding damage from sustained overload.

Lesson 3 • Overcurrent and Overvoltage Protection

Sets current limit, stall prevention, and overvoltage ride-through parameters. These functions protect the drive and motor during transient load events.

Lesson 4 • Drive Self-Diagnostics and Preventive Alerts

Uses built-in diagnostics, maintenance timers, and fan-life counters to schedule preventive action. Proactive alerts extend drive service life and reduce unplanned downtime.

Lesson 1 • PID Process Control Configuration

Programmes the internal PID controller for closed-loop process regulation. PID control enables the drive to maintain pressure, flow, or temperature setpoints autonomously.

Lesson 2 • Braking Methods and Stopping Modes

Configures DC injection braking, dynamic braking resistor, and coast-to-stop modes. Correct braking selection prevents overvoltage faults and meets process stopping requirements.

Lesson 3 • Multi-Speed and Preset Frequency Programming

Configures up to 16 preset speeds using digital input combinations. Preset speeds enable simple step-sequence control without an external controller.

Lesson 4 • Flying Start and Catch-Spinning Motor

Enables speed search to reconnect to a coasting motor without mechanical shock. Flying start is critical for fan and pump restarts after momentary power loss.