Do you have questions? Our community may have already answered them!
Connect with others in our support forum.
INVT GD28-018G-4 frequency inverter with STO and optional communication card
- Built-in STO SIL 3 / PL e
- Built-in brake chopper & EMC filter
- Modbus RTU, optional PROFINET & EtherCAT
- USB-C: set parameters without mains power
- 150 % for 60 s, 180 % for 10 s
€541.50*
In stock
Lieferzeit: 3 bis 5 Tage
Accessories
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available, delivery time: 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Customers also viewed
Customers also viewed
Available, delivery time: 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available, delivery time: 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available, delivery time: 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available, delivery time: 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available, delivery time: 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
If you need a compact frequency inverter with built-in STO, brake chopper and EMC filter that can be integrated into PROFINET, EtherCAT, EtherNet/IP or Modbus TCP when required, the INVT GD28 is a universal inverter from 0.2 to 2.2 kW for single-phase 230 V and 0.4 to 22 kW for three-phase 400 V. Modbus RTU comes as standard; a single card covers all Ethernet fieldbuses: the EC-TX149.
🏭 Typical Applications
Packaging, printing and machine tools: STO to SIL 3 / PL e is built into every model. According to INVT, sensorless vector control delivers up to 200 % starting torque at 0.5 Hz, with a torque response below 10 ms.
Pumps, fans and compressors: integrated PID controller, energy-saving control at partial load and speed tracking for a smooth restart of a coasting motor. In light-duty mode, one unit covers the next larger motor rating.
Conveyors, mixers and filling machines: linear or S-curve ramps, up to 16 preset speeds and ride-through during short mains dips.
Plants with different fieldbuses: The EC-TX149 handles PROFINET, EtherCAT, EtherNet/IP and Modbus TCP — the protocol is selected by parameter. One card type in stock instead of four.
⚙️ Control and Functions
Two control modes: V/f control and sensorless vector control (SVC) with a speed range of 1:100 and ±0.2 % speed accuracy.
Asynchronous and permanent-magnet synchronous motors, autotuning of motor parameters.
Dual rating: heavy duty 150 % for 60 s and 180 % for 10 s, light duty 110 % for 60 s and 150 % for 10 s.
Output frequency 0–599 Hz, frequency resolution 0.01 Hz.
Frequency setpoint via keypad, potentiometer, analog input, pulse input, preset speeds, PID or Modbus — setpoint channels can be combined.
Motor temperature monitoring: PTC directly on DI4, PT100, PT1000 or KTY84 via the AO→AI analog combination.
Fewer nuisance trips: overvoltage and overcurrent stall control, automatic voltage regulation (AVR).
🔌 Connections and Control I/O
5 digital inputs: 4 standard inputs and 1 high-speed input up to 50 kHz, NPN and PNP (factory setting PNP).
2 analog inputs: AI1 0–10 V or 0–20 mA, AI2 −10–+10 V or 0–20 mA.
1 analog output 0–10 V or 0–20 mA and 1 high-speed digital output up to 50 kHz.
1 relay output: changeover contact, 250 V AC / 3 A or 30 V DC / 1 A.
RS-485 with Modbus RTU as terminal, RJ45 for the external keypad.
USB-C: parameter setting, parameter copy and monitoring with the INVT Workshop software — the PC powers the control electronics, no mains voltage and no interface converter needed.
Spring-clamp terminals for the control wiring, one slot for expansion cards.
⚠️ Before Ordering
Select by output current, not by kW: The motor rated current must match the inverter's output current. The kW figure in the model name applies to heavy duty and a standard four-pole motor.
EMC filter: With the built-in filter, the single-phase models meet category C2, the three-phase models C3. C2 on three-phase units requires an external filter.
External brake resistor: The brake chopper is built in; the resistor is connected to (+)/PB. Do not go below the minimum resistance for each power rating.
Using STO: The STO inputs are jumpered at the factory. If STO is part of your safety concept, remove the jumpers and wire a safety relay or safety PLC.
Keypads: A simple LED keypad is built in. For the cabinet door, the BOP-270 (LED) and SOP-28 (LCD) keypads are available. While a USB-C cable is plugged in, the external keypad is disabled.
🔧 Frame Sizes, Environment and Mounting
Frame A (230 V: 0.2–0.75 kW · 400 V: 0.4–1.1 kW): 60 × 190 × 155 mm, approx. 1.25 kg, fanless
Frame B (230 V: 1.1–2.2 kW · 400 V: 1.5–4 kW): 70 × 190 × 155 mm, approx. 1.3 kg
Frame C (400 V: 5.5–7.5 kW): 90 × 235 × 155 mm, approx. 2.1 kg
Frame D (400 V: 11–15 kW): 130 × 250 × 185 mm, approx. 3.55 kg
Frame E (400 V: 18.5–22 kW): 160 × 300 × 190 mm, approx. 4.9 kg
Mounting: wall mounting with two screws (A/B), DIN rail with the AP-RB-A-01 adapter (A/B), flange mounting with the heat sink outside the cabinet (C/D/E). Below 40 °C ambient temperature, units may be mounted side by side without clearance.
IP20. Operation −10 °C to +50 °C (heavy duty without derating), storage −20 °C to +70 °C, humidity below 95 % non-condensing, above 1000 m 1 % derating per 100 m. Coated PCBs to 3C2/3S2.
🏷️ Manufacturer and Reliability
INVT Electric from Shenzhen is one of the major Chinese manufacturers of drive technology. The GD28 is certified to CE, UL and TÜV; all models reach efficiency class IE2. INVT frequency inverters are in productive use at numerous spstiger customers — with support in German directly from us.
Accessories
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available, delivery time: 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Available in 30 days, delivery time 3 bis 5 Tage
Preis exkl. MwSt., zzgl. Versandkosten
Technical Specifications
Login