Multifunctional frequency inverters of the SPLC-AT20-1R5G2 series are designed for connection to a single-phase 220 V network and control of three-phase asynchronous motors with a power of up to 1.5 kW (depending on the chosen inverter model). These frequency inverters are used to control conveyors, machine drives, and other loads where it is necessary to maintain torque over a wide range of motor speeds with low and infrequent overloads.
Frequency inverters SPLC-AT20-1R5G2 with power up to 1.5 kW use the vector control mode V/f by default.
The frequency inverter models SPLC-AT20-1R5G2 have a protection degree of IP20, so it is recommended to install them on a DIN rail in specialized cabinets to protect against dust and moisture. The removable control panel, located on the front panel of the cabinet, facilitates adjustment.
Table — Main technical parameters of SPLC-AT20-1R5G2 frequency inverters
| Input voltage |
1 phase 220 V
|
| Output voltage |
3 phase 220 V
|
| Output power |
1.5 kW
|
| Output frequency range |
from 0 to 600.0 Hz
|
| Protection degree EN 60529 |
IP20 |
Functions of SPLC-AT20 frequency inverters:
- The specified output frequency can be a digital parameter, receive in the form of an analogue current signal (or voltage), pulse. The design of the inverter control inputs allows choosing the type of input signal: NPN or PNP;
- Select the main frequency source of channel X and additional Y channel, calculation operations (addition, difference, maximum, minimum), and switching between sources;
- Up to 15 digital frequency settings for starting over time with a step from 0 to 6500 seconds or from 0 to 6500 hours (the time unit is selected in the settings);
- Control several pumps or fans in the V/f mode;
- Select the V/f control frequency characteristic: regular linear, multipoint, quadratic or with coefficients 1.2, 1.4, 1.6, 1.8;
- Straight and S-shaped acceleration-deceleration characteristic;
- Automatic and manual torque boost on 0...30%;
- Stop the motor by DC braking;
- Automatic voltage regulation (AVR);
- Sleep mode, wake during sleep to protect the water supply system from freezing;
- JOG mode;
- User password request function to access the inverter menu
Delivery package
- Vector frequency inverter series SPLC-AT20
- Removable control panel (installed on the inverter)
Advantages
- The AT20 series frequency inverters have a high-performance processor and various functions that allow precise control of low-power motors
Technical specifications of models
Table 1 — Selection of SPLC-AT20 inverter model
| Model |
Rated input current, A |
Rated output current, A |
Rated output power, kW |
| SPLC-AT20-0R4G2 |
5.4 |
2.5 |
0.4 |
| SPLC-AT20-0R7G2 |
7.2
|
5
|
0.75
|
| SPLC-AT20-1R5G2 |
10
|
7
|
1.5
|
| SPLC-AT20-2R2G2 |
16
|
11
|
2.2
|
| SPLC-AT20-3R7G2 |
17
|
16.5
|
3.7
|
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