High-performance vector frequency converters of the SPLC-Z8400-110G/132P series are designed for controlling high-load three-phase electric motors 380 V with power up to 110 kW, where overloads might occur, and high control quality is required. These frequency converters have higher microprocessor performance than the SPLC-AT20 series, allowing SPLC-NZ8000 to perform operations faster and provide sensorless vector control of rotational speed with an accuracy of ±0.5%. If necessary, the converter can switch to simple scalar control mode U/f with less precision and into "Pump" mode for operating with more powerful motors, but with less load (details below).
The converter SPLC-NZ8000 can also be equipped with a PG board (purchased separately). With it, an encoder sensor can be connected to the converter to track motor rotational speed and rotor position. Vector feedback control provides enhanced fast response and frequency control accuracy up to ±0.02%, enables control of torque accuracy up to ±5%, and can work not only with asynchronous but also synchronous motors.
Table — Main technical parameters of drives SPLC-Z8400-110G/132P
| Input Voltage |
3-phase 380 V
|
| Output Voltage |
3-phase 380 V
|
| Output Power |
up to 110 kW (132 kW in "Pump" mode)
|
| Output Frequency Range |
from 0.1 to 3200.0 Hz (V/f) |
| Rated Input Current |
210 A (240 A in "Pump" mode)
|
| Rated Output Current |
110 A (253 A in "Pump" mode)
|
| Protection Degree EN 60529 |
IP20 |
When the frequency converter is installed in a protective cabinet, its control panel (operator panel) can be detached and brought to the front panel. A cable-connector must be purchased for this purpose.
Technical Specifications of the SPLC-NZ8000 Series
Standard Functions of the SPLC-NZ8000 Frequency Converter
| Control Modes |
Sensorless Vector Control (SFVC)
Closed-loop Vector Control (CLVC, with PG)
Volt-frequency (V/F) Control |
| Maximum Output Frequency |
Vector Control: 0-320 Hz
V/F Control: 0-3200 Hz
|
| Carrier Frequency |
1-16 kHz
Carrier frequency is automatically adjusted depending on load characteristics. |
| Frequency Setting Resolution |
Digital setting: 0.01 Hz
Analogue setting: maximum frequency × 0.025% |
| Starting Torque |
Type G: 0.5 Hz/150% (SFVC); 0 Hz/180% (CLVC, with PG)
Type: 0.5 Hz/100% |
| Speed Range |
1:100 (SFVC)
1:1000 (CLVC)
|
| Speed Accuracy |
±0.5% (SFVC), ± 0.02% (CLVC, with PG)
|
| Torque Control Accuracy |
±5% (CLVC, with PG) |
| Overload Capacity |
G type: 60 s at 150% of rated current, 3 s at 180% of rated current
P type: 60 s at 120% of rated current, 3 s at 150% of rated current |
| Torque Boost |
Auto boost
Manual boost 0.1%-30.0%
|
| V/F Curve |
Linear V/F curve
Multi-point V/F curve
Stepped V/F curve (1.2, 1.4, 1.6, 1.8, quadratic) |
| V/F Split |
Two types: full split, partial split |
| Acceleration/Deceleration Mode |
Linear curve
S-shaped curve
Four groups of acceleration/deceleration time range 0.0-6500.0 s
|
| DC Braking |
DC braking frequency: from 0.00 Hz to maximum frequency
Braking time: 0.0-100.0 s
Braking current action selection: 0.0% -100.0%
|
| JOG Control |
JOG frequency range: 0.00-50.00 Hz
JOG acceleration/deceleration time: 0.0-6500.0 s
|
| Built-in Multiple Speed Settings |
Implementation of up to 16 speeds through a simple PLC function or terminal state combination |
| Built-in PID |
Closed-loop system enables PID regulation |
| Automatic Voltage Regulation |
Can provide constant output voltage when the main voltage changes. |
| Overcurrent and Overvoltage Control |
Automatic limit of current and voltage during operation to prevent frequent tripping during overcurrent or overvoltage. |
Enabling simple scalar control in SPLC-NZ8000 converters allows selecting the type of load “General” or “Pump” from the menu.
-
General — general industrial mode for motors that operate with roughly the same torque at different speeds (compressors, conveyors, lifts). In this mode, the frequency converter will provide a starting torque of over 150% for acceleration to overcome friction and inertia.
-
Pump — specialized mode for fans, pumps, and other electric motors that work with torque that increases with the rotational speed and when there is no need for high starting torque.
Thus, the frequency converter SPLC-Z8400-110G/132P is designed to control motors up to 110 kW, but when switching to scalar control and "Pump" mode, it can control an electric motor up to 132 kW. In this case, the permissible overload will decrease: while in regular "General" mode the load allowed is no more than 150% for 60 s or 180% for 3 s, in "Pump" mode with a more powerful motor these indicators are reduced — overload no more than 120% for 60 s or 150% for 3 s.
Custom Features of SPLC-NZ8000
| Support for Various PG Boards |
Support for PG boards for rotating transformer, differential input, differential UVW input, resolver, and open collector input |
| Run Through Power Loss |
Power loss is compensated by reversing load energy, allowing the drive to continue working for a short time. |
| Current Limitation |
Avoids drive current overload frequency failure. |
| High Performance |
Control of asynchronous and synchronous motors achieved through high-performance vector current technology. |
| Timer Control |
Time range: 0.0-6500.0 min |
| Communication Method |
Modbus (standard)
Profibus-DP (optional)
CANlink (optional)
CAN (optional) |
| Protection Modes |
Motor short-circuit detection when turned on, phase input or output open protection, overcurrent, overvoltage, undervoltage, overheating, and overload protection. |
Circuit Diagram of the SPLC-NZ8400-5R5G/7R5P Frequency Converter
SPLC-NZ8000 features multifunctional input-output control terminals, which can be assigned in settings to determine set frequency, issue forward motion command, stop, etc.:
- Input: 8 discrete inputs (including one high-speed pulse), 2 analogue inputs (one 0...10 V or 0...20 mA, second only for +10...-10 V;
- Output: 1 discrete transistor output (high-speed), 2 relays 250 VAC 3 A or 30 VDC 1 A, 2 analogue outputs (0...10 or 0...20 mA).
By default, the frequency converter supports the most common communication port in Ukrainian enterprises RS-485, but upon request, these frequency inverters can be supplied with a data transmission board Profibus or CAN, which will easily integrate the equipment into any modern industrial network.
Model Selection of the SPLC-NZ8000 Series Frequency Converter
Parameters of SPLC-NZ8000 Series Converters for Three-phase Motors 380 V
| Model |
Rated Output Power, kW |
Rated Input Current, A |
Rated Output Current, A |
| SPLC-NZ8400-0R4G4 |
0.4 |
3.4 |
1.2 |
| SPLC-NZ8400-0R7G4 |
0.75 |
3.8 |
2.5 |
| SPLC-NZ8400-1R5G4 |
1.5 |
5 |
3.7 |
| SPLC-NZ8400-2R2G4 |
2.2 |
5.8 |
5 |
| SPLC-NZ8400-3R7G/5R5P4 |
3.7/5.5 |
10/15 |
9/13 |
| SPLC-NZ8400-5R5G/7R5P4 |
5.5/7.5 |
15/20 |
13/17 |
| SPLC-NZ8400-7R5G/11P4 |
7.5/11 |
20/26 |
17/25 |
| SPLC-NZ8400-11G/15P4 |
11/15 |
26/35 |
25/32 |
| SPLC-NZ8400-15G/18.5P4 |
15/18.5 |
35/38 |
32/37 |
| SPLC-NZ8400-18.5G/22P4 |
18.5/22 |
38/46 |
37/45 |
| SPLC-NZ8400-22G/30P4 |
22/30 |
46/62 |
45/60 |
| SPLC-NZ8400-30G/37P4 |
30/37 |
62/76 |
60/75 |
| SPLC-NZ8400-37G/45P4 |
37/45 |
76/90 |
75/90 |
| SPLC-NZ8400-45G/55P4 |
45/55 |
90/105 |
90/110 |
| SPLC-NZ8400-55G4 |
55 |
105 |
110 |
| SPLC-NZ8400-75P4 |
75 |
140 |
150 |
| SPLC-NZ8400-75G/90P4 |
75/90 |
140/160 |
150/176 |
| SPLC-NZ8400-90G/110P4 |
90/110 |
160/210 |
176/210 |
| SPLC-NZ8400-110G/132P4 |
110/132 |
210/240 |
210/253 |
| SPLC-NZ8400-132G/160P4 |
132/160 |
240/290 |
253/300 |
| SPLC-NZ8400-160G/185P4 |
160/185 |
290/330 |
300/340 |
| SPLC-NZ8400-185G/200P4 |
185/200 |
330/370 |
340/380 |
| SPLC-NZ8400-200G/220P4 |
200/220 |
370/410 |
380/420 |
On order
