The LNCB60C special frequency regulator for constant pressure water supply adopts modular design. On the premise of meeting the general needs of customers, it can flexibly meet customers' individual needs and industrial needs through extended design, which conforms to the application trend of transformers.
summary
The LNCB60C special frequency regulator for constant pressure water supply adopts modular design. On the premise of meeting the general needs of customers, it can flexibly meet customers' individual needs and industrial needs through extended design, which conforms to the application trend of transformers. It is of great value to meet the requirements of all kinds of complex and high-precision braking, and at the same time, to provide an integrated solution of inter-heart wave degree for equipment manufacturing customers, which can reduce the system cost and improve the system reliability.
Model Meaning
Product features
● System sleep and wake-up
● Group and line protection detection alarm
● The control system can be operated manually/automatically.
● Support 485 communication and MODBUS protocol.
● There is no need to enter the parameter setting pressure through programming.
● The pressure can be directly adjusted through the panel keys.
● Constant water pressure, stable and reliable system operation.
● It can effectively eliminate the impact of large starting current, reduce the average rotation speed of the pump and prolong the service life of the pump.
Nameplate
List Of LNC860C Series Models
Frequency Converter Model | Power Supply Capacity (Kva) | Input Current (A) | Output Current (A) | Adapted Motor (Kw) |
Three- Phase Power Supply: 380V+15%，50/60Hz | ||||
LNC860C-4T0007GB | 1.5 | 3.4 | 2.1 | 0.75 |
LNC860C-4T0015GB | 3.0 | 5.0 | 3.8 | 1.5 |
LNC860C-4T0022GB | 4.0 | 5.8 | 5.1 | 2.2 |
LNC860C-4T0040GB | 5.9 | 10.5 | 9 | 3.7 |
LNC860C-4T0055GB | 8.9 | 14.6 | 13 | 5.5 |
LNC860C-4T0075GB | 11 | 20.5 | 17 | 7.5 |
LNC860C-4T0110GB | 17 | 26 | 25 | 11 |
LNC860C-4T0150GB | 21 | 35 | 32 | 15 |
LNC860C-4T0185GB | 24 | 38.5 | 37 | 18.5 |
LNC860C-4T0220GB | 30 | 46.5 | 45 | 22 |
LNC860C-4T0300GB | 40 | 62 | 60 | 30 |
LNC860C-4T0370GB | 57 | 76 | 75 | 37 |
LNC860C-4T0450GB | 69 | 92 | 91 | 45 |
LNC860C-4T0550GB | 85 | 113 | 112 | 55 |
LNC860C-4T0750GB | 114 | 157 | 150 | 75 |
LNC860C-4T0900GB | 134 | 180 | 176 | 90 |
LNC860C-4T1100GB | 160 | 214 | 210 | 110 |
LNC860C-4T1320GB | 192 | 256 | 253 | 132 |
LNC860C-4T1600GB | 231 | 307 | 304 | 160 |
LNC860C-4T2000GB | 250 | 385 | 377 | 200 |
LNC860C-4T2200GB | 280 | 430 | 426 | 220 |
LNC860C-4T2500GB | 355 | 440 | 465 | 250 |
LNC860C-4T2800GB | 396 | 495 | 520 | 280 |
LNC860C-4T3150GB | 445 | 65 | 585 | 315 |
LNC860C-4T3550GB | 500 | 617 | 650 | 355 |
LNC860C-4T4000GB | 565 | 687 | 725 | 400 |
Technological Specification
Project | specifications | |
control characteristic | Output frequency | 0-500Hz |
carrier frequency | 0.8kHz~12kHz can automatically adjust the carrier frequency according to the load characteristics. | |
Output frequency resolution | 0.01Hz | |
Control mode | Open-loop vector control (SVC) | |
Torque characteristic | With torque compensation and slip compensation, the starting torque can reach 150% at 0.5Hz | |
Torque control accuracy | ±5% (FVC) | |
Overvoltage loss rate prevention protection | Set as a percentage of rated current, 20~250% | |
Speed range | 1:100 (SVC) 1:1000(FVC) | |
Steady speed accuracy | ±0.5%(SVC) | |
overload capacity | 150% rated output current for one minute | |
V/F curve | Four ways: linear; Multipoint type; Complete V/f separation; Incomplete V/f separation | |
Acceleration and deceleration curve | line or s-curve acceleration and deceleration mode; Four kinds of acceleration and deceleration time; The acceleration and deceleration time range is 0.1~6500.0s | |
DC braking | DC braking frequency: 0.00Hz～ ~ maximum frequency, braking time: 0.0s～60.0s, braking action current value: 0.0%~100.0%. | |
Inching control | Inching frequency range: 0.00Hz～ ~ maximum frequency; The inching acceleration and deceleration time is 0.1s～6500.0s | |
Simple PLC, multi-speed operation | Realized by the built-in PLC or control terminal to realize the maximum 16-stage speed operation. | |
Built in PID | The closed-loop control system of process control can be conveniently | |
Automatic voltage regulation (AVR) | When the grid voltage changes, it can automatically keep the output voltage constant. | |
fast current limiting function | Minimize overcurrent fault and protect the normal operation of frequency converter. | |
operating characteristic | Run command channel | Three channels: operation panel, control terminal and serial communication port. It can be switched in many ways. |
frequency source | 10 frequency sources: panel knob, operation panel, analog voltage, analog current, RS485 communication, Multi-speed, PID simple PLC, which can be switched in many ways. | |
Auxiliary frequency source | 10 kinds of auxiliary frequency sources. Can flexibly realize auxiliary frequency fine tuning and frequency synthesis. | |
input terminal | Five digital input terminals that can flexibly realize auxiliary frequency fine tuning and frequency synthesis, one of which can be used as high-speed pulse input, | |
output terminal | A high-speed pulse output terminal, square wave signal output of OkHz~50kHz, can realize the output of physical quantities such as set frequency and output frequency. | |
Show and keyboard operation | Led display | There are 8 function keys, 5-position 7-segment LED and 5 status LED indicators, which can perform forward rotation, reverse rotation, reset, stop, jog, parameter setting and display. |
Protection characteristics | Protection function | Power-on motor short-circuit detection, input and output open-phase protection, overcurrent protection, overvoltage protection, undervoltage protection, overheat protection, overload protection, short-circuit protection, etc. |
Other characteristics | Optional card | IO expansion card, communication card (isolated), PG card |
Multiple encoder support | Support differential, open collector, UVW, resolver | |
Water pump control | Automatic energy-saving operation | Under light load, the output voltage will be automatically reduced to achieve energy-saving effect. |
Constant pressure control function | PID adjustment, PID feedback detection, PID sleep and wake-up | |
Power-on automatic start | power-on automatic start-up are optional. | |
Pressure setting | Press the key to adjust the pressure. | |
environment | Place of use | Indoor, free from direct sunlight, free of dust, corrosive gas, combustible gas, oil mist, water vapor, dripping water or salt, etc. |
altitude | content less than 1000m | |
ambient temperature | -10℃~+40℃ (ambient temperature is 40℃~50℃, please use it in a derated way) | |
humidity | less than 95%RH, and no water condensation | |
Vibration | less than 5.9m/s2(0.6g). | |
Storage temperature | -20℃~+60℃ | |
Three Common Frequency Conversion Water Supply Control Methods And Their Comparison
Compare content | Constant pressure water supply | PLC + frequency conversion | Multi pump controller + |
Realization difficulty/effect | |||
Energy-saving speed | easy | difficult | medium |
Electrical control wiring | easy | difficult | difficult |
Anti-interference and long- | effective | ineffective | ineffective |
Composition | terse | complex | more complex |
Expansion ability | easy | difficult | medium |
Installation and testing | easy installation | difficult | difficult |
Parameter setting | easy to operate | difficult | medium |
Maintenance expense | low cost | high cost | medium |
Frequency Conversion Constant Pressure Water Supply System Controlled By Industrial Pump Group
Keyboard Base Mounting Size
Schematic Diagram Of Plastic Structure Size And Installation Size
Fixed Output Power | Input Voltage | A | B | H | W | D | Aperture |
0.75~2.2 | Three- phase | 90 | 157 | 170 | 101 | 142 | 5 |
4 | 111 | 183 | 197 | 129 | 175 | 5 | |
5.5~7.5 | 137 | 237 | 256 | 157 | 190 | 5 |
Schematic Diagram Of External Dimensions And Installation Dimensions Of Sheet Metal Structure (Hanging Type)
Hanging style | ||||||||||
type | Exterior dimensions | Installation size | Aperture | |||||||
Kw | H(mm) | W(mm) | D(mm) | H1(mm) | W1(mm) | W2(mm) | mm | |||
11-15 | 340 | 204 | 214 | 325 | 150 |
| Φ6 | |||
18.5-22 | 360 | 224 | 214 | 345 | 150 |
| Φ6 | |||
30-37 | 460 | 260 | 264 | 440 | 200 |
| Φ8 | |||
45-75 | 570 | 380 | 264 | 440 | 200 |
| Φ10 | |||
90-132 | 570 | 380 | 263 | 547.5 | 240 |
| Φ12 | |||
160-220 | 760 | 500 | 355 | 735 | 200 | 200 | Φ12 | |||
250-400 | 862 | 750 | 455 | 832 | 250 | 250 | Φ12 | |||
