Frequency converters
Frequency converters for reliable and efficient control of induction motors and permanent magnet synchronous motors.
VEDA-in-DRIVES by akYtec — proven guaranteed quality of frequency converters, based on 15 years of operational experience, feedback from partners and customers, as well as the high qualifications of engineers.
Fully integrated into the akYtec automation device system.
Applications:
- HVAC (fans and pumps)
- Metalworking / Mining
- Food industry
- Construction
- Pulp and paper production
- Petrochemistry
- Woodworking
Advantages:
Reliability
- Long service life
- Process continuity — high protection against emergencies, with regenerative braking mode
- Extended climatic range — up to 50 °C
- Special protective coating on PCBs
- Quick-release cooling fan
- Intelligent cooling system
Motor control
- High-precision and reliable vector control
- Automatic motor adaptation without rotation
- Automatic energy consumption optimization
- Load and slip compensation
- Smooth start and stop of the motor:
- delayed start;
- start under load;
- S-shaped acceleration curve.
- Dynamic braking capability, including with braking resistors
- Built-in PID controller for closed-loop control (pressure, temperature, level, etc.)
Noise suppression
- Built-in EMC filter
- Reduction of harmonic distortion
Setup and integration
- Convenient and intuitive modern configurator — fast and simple device setup
- Compatibility with all major communication protocols — integration into various control and SCADA systems
- Built-in operator panel
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Parameter |
Value |
|
|
|
RD11 |
RD05 |
|
Supply voltage |
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|
Supply voltage |
Rated power range of RD frequency converters |
|
|
1х220 V |
0.75…11 kW |
0.75…2.2 kW |
|
3х380 V |
0.75…1120 kW |
0.75…22 kW |
|
3х660 V |
22…1000 kW |
– |
|
Overload capacity |
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Normal overload capability |
120% – 35 s, 140% – 9 s, 150% – 3 s |
1-phase converters: 150% – 20 s |
|
3-phase converters: 150% – 60 s, 180% – 5 s |
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Maximum overload capability |
150% – 89 s, 180% – 10 s, 200% – 3 s |
1-phase converters: 180% – 5 s |
|
3-phase converters: 200% – 0.5 s |
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Drive hardware |
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Enclosure protection class |
IP20 |
IP20 |
|
Braking transistor |
+ |
+ |
|
RFI filter |
+ |
+ |
|
Input choke |
+ |
+ |
|
Special protective coating of the boards |
+ |
+ |
|
Inputs/outputs, communication ports |
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|
PNP/NPN logic |
+ |
From 7.5 kW |
|
Digital inputs |
5 (dry contact) |
4 (dry contact) |
|
Digital outputs |
1 transistor (=24 V, 50 mA) |
1 transistor (=24 V, 50 mA) |
|
Analog inputs |
2 (0/4…20 mA and 0…10 V) |
1 (0/4…20 mA and 0…10 V) |
|
Analog outputs |
1 (0…10 V, 0/4…20 mA) |
1 (0…10 V, 0/4…20 mA) |
|
Relay outputs |
1 |
1 |
|
Communication ports |
Modbus RTU, optionally ProfiBus, ProfiNet, CANopen, EtherCAT, Ethernet, Modbus TCP |
Modbus RTU |
|
Operating temperature |
||
|
Without derating |
-10…+40 °C |
-10…+40 °C |
|
With derating |
-10…+50 °C |
-10…+50 °C (+60 °C with reduced load) |
|
Motor types |
||
|
3-phase asynchronous |
+ |
+ |
|
Synchronous (permanent magnet rotor) |
+ |
+ |
|
Maximum output frequency in vector control |
299 Hz ± 0.5% |
299 Hz ± 0.5% |
|
PWM frequency |
2…16 kHz |
2…16 kHz |
|
Motor control methods |
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Scalar control with U/f curve editing |
+ |
+ |
|
Sensorless vector speed control |
+ |
+ |
|
Built-in controllers |
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|
Process PI controllers |
1×PID |
1×PID |
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Motor protection functions |
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Motor overheating protection (thermistor / I²t without sensor) |
+ |
+ |
|
Motor phase loss |
+ |
+ |
|
Motor short-circuit protection |
+ |
+ |
|
Special power section functions |
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Automatic energy optimization |
+ |
+ |
|
Automatic motor adaptation (without rotation) |
+ |
+ |
|
Flying start |
+ |
+ |
|
Control panels |
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Built-in digital panel |
+ |
+ |
|
Remote operator panel |
2 options |
2 options |
|
Application functions |
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|
Configurable S-curve acceleration/deceleration |
+ |
+ |
|
Precise stop, stop by counter |
+ |
+ |
|
Automatic resonant frequency skip |
2 frequency skip bands for resonance |
2 frequency skip bands for resonance |
|
Built-in PLC (programmable logic controller) |
+ |
+ |
|
Winder mode |
+ |
– |
You can also find the frequency converters on the VEDA-in-DRIVES website.
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A series of frequency converters for pump and fan control, as well as for general use in automation systems. -
A series of frequency converters for heating, ventilation and air conditioning systems, as well as for pumping equipment and general industrial applications, including heavy-duty starting. * Please contact us for lead time