Three-phase frequency converters SPLC-AT20-1R5G4 are powered by three-phase voltage 380 V and are designed to control three-phase asynchronous motors with voltage 380 V and power up to 1.5 kW.
Model of frequency converters of series SPLC-AT20-1R5G4 can switch to modes:
- Precise vector control with open loop (without sensors)
- Simple vector control, involving voltage/frequency adjustment. This mode is less precise but allows operation with higher power motors.
Main parameters of SPLC-AT20-1R5G4:
- Maximum output frequency up to 600 Hz, resolution for digital frequency setting 0.01 Hz;
- Rated power supply of the frequency converter — 3-phase ~380V 50/60 Hz;
- Overload capability: operates for 60 s with excess of rated current up to 150%, for 3 s — up to 180% (in mode “P” permits overload 120% for 60 s, 150% — not more than 3 s);
- Number of inputs-outputs of the frequency converter:
- Input terminals: 6 digital multifunctional inputs (two of them high-speed pulse) and 2 analog (one 0…20 mA or 0…10 V, the other only 0…10 V);
- Output terminals: 2 relay outputs, 1 high-speed pulse output (open-collector transistor), 2 analog outputs (0…20 mA or 0…10 V);
- Communication port RS-485 (Modbus).
- PID control with feedback;
- Internal controller (PLC);
- Remote control panel (LCD display, indicators, configurable keys). The removable operator panel is by default mounted on the device, and for remote connection, it needs to be ordered and purchased separately (not included in the frequency converter price).
Table — Main Technical Parameters of Frequency Converters SPLC-AT20-1R5G4
| Input Voltage |
3-phase 380 V
|
| Output Voltage |
3-phase 380 V
|
| Output Power |
up to 1.5 kW
|
| Output Frequency Range |
from 0 to 600 Hz
|
| Rated Input Current |
5 A
|
| Rated Output Current |
3.7 A
|
| Protection Degree EN 60529 |
IP20 |
Main Features of SPLC-AT20-1R5G4
- Can use main and auxiliary set frequency source, their synthesis, switch between sources in various ways. Frequency settings possible through:
- Digital setting using keys on the operator panel in the corresponding menu item;
- Digital setting using UP/DOWN terminals;
- Digital setting via RS-485 port;
- Potentiometer connected to the frequency converter;
- Multi-step speed with 16 preset rotation frequencies lasting up to 6500.0 hours, acceleration/deceleration time for each step;
- PID regulation in closed loop, with switchable PID parameters;
- Analog electrical signal;
- High-speed pulse signal.
- Hold starting frequency for up to 100.0 s;
- Forced stop function with DC current braking;
- Selectable acceleration/deceleration time and mode — linear or S-curve;
- Sleep mode with activation periods to prevent water freezing;
- JOG mode;
- Protection functions:
- Access protection in menu with password;
- Motor and frequency converter overload protection;
- Module overheating protection;
- Input/output phase loss detection;
- Response time overrun detection via RS-485;
- Overvoltage and undervoltage protection;
- PID feedback sensor break detection;
- Water pressure low/high alarm, motor stop in water deficit;
- Display of 25 types of errors.
Connection Diagram of Frequency Converter SPLC-AT20-1R5G4
Number of inputs-outputs of the frequency converter for control:
- Input terminals: 4 digital multifunctional inputs and 1 analog (voltage 0…10 V or current 4…20 V), switching occurs via jumper J1;
- Output terminals: 1 relay output;
- Communication port RS-485 (Modbus).
With us, you can buy the Nietz vector frequency converter for asynchronous motors with power up to 1.5 kW SPLC-AT20-1R5G4 with supply voltage 3-phase AC380V with delivery to any region of Ukraine.
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