INVT GD20-EU 1.5 kW Frequency Inverter (400 V Three-Phase VFD)
-
Rated Power: 1.5kW, Three Phase, 400V AC (380–440V)
-
Precise Control: SVPWM and SVC (Sensorless Vector Control), ±0.2% speed accuracy
-
Built-in STO: Safe Torque Off function for increased safety
-
Compact Design: Wall and DIN rail mounting, space-saving installation
-
Integrated Brake Unit: No external braking resistor required
-
Flexible Communication: RS485 with Modbus RTU & ASCII support
-
Simple PLC: Automates speed/direction with built-in logic
-
PID Control: For precise pressure, temperature, and flow regulation
-
Custom V/F Curve: Linear, multi-dot, and other adjustable modes
-
Virtual Terminals: Emulate I/O without additional wiring
-
High-speed Input: Pulse input up to 50 kHz (HDI)
-
Programmable Delay: Up to 50s on/off delay for load coordination
-
Multiple Braking Modes: DC, flux, and dynamic braking
-
Application Range: Ideal for conveyors, HVAC, pumps, machinery, and automation
Description
The INVT GD20-EU 1.5 kW (400 V Three-Phase) is a compact, high-performance drive designed for precise control of three-phase motors in industrial and OEM applications. Supporting SVPWM and sensorless vector control (SVC), the GD20-EU 1.5 kW 400 V drive delivers high efficiency, integrated protection features, and flexible integration with modern automation, HVAC, and pump systems.
Key Features
-
Rated Power: 1.5 kW
-
Input Voltage: 3-phase 400V AC (380–440V, -15% … +10%)
-
Input Frequency: 50/60 Hz (±5%)
-
Control Modes: SVPWM, V/F Control, and SVC (Sensorless Vector Control)
-
Speed Control Accuracy: ±0.2% (SVC) for highly precise operation
Built-In Safety and Protection
-
Safe Torque Off (STO) function halts motor torque during maintenance, improving safety.
-
Comprehensive protection: overcurrent, overvoltage, undervoltage, overheating, and overload.
-
Versatile braking modes: DC braking, flux braking, dynamic braking.
Intelligent Control and Communication
-
RS485 communication supporting Modbus RTU and ASCII for seamless integration into SCADA or PLC systems.
-
Simple PLC function allows frequency and direction control with preset timing—ideal for conveyors and batch processes.
-
PID Control for precise regulation of pressure, temperature, or flow in complex systems.
-
Customizable V/F curve: match specific load types such as pumps, fans, or HVAC units for better energy efficiency.
-
Virtual terminals emulate digital I/O for simplified wiring.
-
High-speed counter input (HDI): Supports pulse signals up to 50 kHz for responsive control.
Space-Saving, User-Friendly Design
-
Compact footprint: Install multiple inverters side-by-side in cabinets.
-
Flexible mounting: Suitable for both wall and DIN rail installations.
-
Integrated braking unit: No need for external components, simplifying setup and reducing cost.
-
Programmable start/stop delays: Coordinate power-up sequences and reduce surges (up to 50 seconds delay).
Certified Quality and Reliability
-
Certified by CE, UL, cUL, and TÜV SÜD for global safety compliance.
-
Engineered for reliability and performance in demanding automation environments.
Applications for This 1.5kW Inverter
The INVT GD20-EU 1.5kW 400V 3 Phase is ideal for:
-
Conveyors & Packaging Systems
-
HVAC (Fans & Compressors)
-
Water Pumps and Process Control
-
Machine Tools and Mixers
-
Textile & Printing Machinery
Discover more models from the INVT GD20-EU series of 400 V VFDs for different power ratings and applications.
_
Additional information
| Brake Chopper | |
|---|---|
| Communication Protocols | Modbus RTU & ASCII |
| Control Methods | SVPWM, SVC (Sensorless Vector Control) |
| Dual Rating Capability | Single Rating |
| EMC Filter | |
| Input Voltage | |
| Motor Compatibility | Asynchronous Motors |
| Mounting Type | DIN Rail and Wall Mounting |
| Safety Features | |
| User Interface | LED Keypad |
Specification
_
| Motor Rated Power (kW) | 1,5 |
| Rated Current (A) | 4,2 |
| Line Voltage, Frequency | AC 3-ph. 380 V … 440 V (-15% … +10%), 50 Hz/60 Hz (± 5%) |
| Output Voltage | 3-ph. 0 V … 480 V (max. input voltage) |
| Overload Capacity | 150% for 60s, 180% for 10s; 200% for 1s |
| Output Frequency | 0 … 590 Hz |
| Control Inputs | Analog: 2 Inputs (AI2: 0 … 10 V / 0(4) … 20 mA; AI3: -10 … 10 V) |
| Digital: 5 programmable inputs, including 1 High-Speed Input (50 kHz) | |
| Control Outputs | 1 Output 0 … 10V / 0 (4) … 20 mA. |
| Digital: 1 potential-free digital output | |
| 1 freely programmable relay with changeover contact | |
| Interfaces | RS485 on terminals (Modbus RTU & ASCII) |
| Brake Chopper | Integrated |
| EMC Filter | optional filters (comply with IEC61800-3 C2, IEC61800-3 C3 requirements) |
| DC Reactor | – |
| Safety Functions | 2-channel STO, SIL2, PL “d” |
| Protection Rating | IP20 |
| Operating Temperature | -10°C … +50°C; performance reduction required if ambient temperature exceeds +40°C, fan cooling |
| Certifications | CE, TÜV SÜD, UL, and cUL |
| Dimensions (mm) * Width x Height x Depth | 80 mm x 185 mm x 140,5 mm |
| Installation | Wall and rail mounting possible |
_
FAQ
What is the INVT GD20-EU 1.5 kW 400 V used for?
The INVT GD20-EU 1.5 kW 400 V frequency inverter precisely controls speed and torque of three-phase AC motors. It is ideal for industrial automation, HVAC systems, pumps, fans, and conveyors where variable motor speed and energy-efficient operation are required.
Can the GD20-EU 1.5 kW 400 V be connected to a 3-phase 400 V supply?
Yes. The GD20-EU 1.5 kW 400 V is designed for 3-phase AC input (380–440 V, ±10%), making it compatible with standard industrial power grids.
Does the GD20-EU 1.5 kW support Modbus communication?
Yes. The drive includes RS485 ports and supports Modbus RTU and ASCII protocols, enabling smooth integration with PLCs, HMIs, and SCADA systems.
Which types of motor control are available on the GD20-EU 1.5 kW 400 V?
This frequency converter supports V/F control, SVPWM, sensorless vector control (SVC), and PID control. It also offers simple PLC functions and multi-speed step control for versatile industrial applications.
Is a braking unit included?
Yes. The GD20-EU 1.5 kW 400 V has an integrated braking unit, allowing efficient motor deceleration without requiring an external resistor.
Can the GD20-EU 1.5 kW operate in precision applications?
Absolutely. Speed control accuracy is ±0.2% in SVC mode, making it suitable for conveyors, machining, flow control, and other processes requiring precise motor operation.
Is the GD20-EU 1.5 kW certified for Europe and North America?
Yes. This drive is CE, UL, cUL, and TÜV SÜD certified, ensuring compliance with international safety and quality standards.
Can the GD20-EU 1.5 kW 400 V be used with pumps and fans?
Yes. With customizable V/F curves and PID control, the GD20-EU 1.5 kW 400 V is ideal for energy-efficient speed regulation of pumps, fans, and similar variable-load applications.
