1. New appearance and integration of design and aesthetics
(1) Book-style narrow appearance design brings up to 60% smaller in volume;
(2) Up-down straight-through heat dissipation, multiple frequency inverters can be installed side by side for greatly reducing the size of the cabinet;
(3) Interactive keyboard design, simple appearance and dual keyboard display.
2. Maximum Power Point Tracking function
Built-in with the MPPT (maximum power point tracking) function, so the photovoltaic pumping system can produce better power outputs to improve the working efficiency of pumps.
3. Ingenuity brings brilliant control algorithm
(1) Drive a variety of loads: supports PMSM, AM, electric spindle, AC pump, etc;
(2) Motor self-tune: international leading self-tune algorithm with high accuracy and consistency;
(3) High-speed low-magnetic control: high-bandwidth current vector and 12 times low-magnetic high-precision output.
4. Reliable performance and comprehensive and timely protection
(1) Solar pump protection functions: Dry protection, low frequency protection, minimum power protection, sleep protection, overwater protection, pump overcurrent protection, etc. (2) Basic protection functions: Overvoltage, undervoltage, inverter overcurrent, module fault, inverter overload, motor overload, current detection zero-drift fault, current detection fault, E2RCM fault, grounding short-circuit fault, input phase loss, output phase loss , inverter overheating, communication fault, motor parameter self-learning fault, etc.
(3) Line-to-ground short-circuit detection: achieve full protections from the solar pump inverter to the motor.
5. High efficiency with excellent debugging tool
(1) Host computer debugging software: VCACSost Ver1.3 is easy to operate and configure parameters and provides customers with unprecedented flexibility;
(2) Firmware upgrade: built-in software directly upgrades online that greatly reduces maintenance and replacement costs;
(3) Traditional ports: commonly used 485 interface or fieldbus for data exchange is efficient and stable.
6. Fully-equipped with extensive and remarkable expansion
(1) SPI expansion port: automatic identification of expansion cards and high-speed channel optimized efficiency;
(2) Extensive expansion: supports multiple types of expansion cards and owns various functions that is suitable for multifold applications;
(3) The basic types are divided into communication expansion card, GPS IOT card, IOT expansion card, PG card and simple logic card.
7. Exquisite structure ensures high working adaptability in severe environments
(1) Brand-new structure design: the division design of device and air duct and full enclosed design on both sides of the machine improve environmental resistance of the product;
(2) Wide-tooth and high-air cooling: high-efficient heat dissipation with wide tooth surface and huge wind and high wind speed cooling fan guarantee the full power section without derating at high temperatures;
(3) Great-longevity design: rigorous screening of high-quality parts and scientific layout effectively avoid high temperature rise and prolong the product life cycle.
|Solar pump inverter power(KW)||Pump||Max solar power input
|Max DC input voltage V||Recommend Voc voltage (V)||Rated output current(A)||Output frequency(Hz)|
|Rated power (KW)||Rated voltage(V)|
|SI23-D1 series, DC60-400VDC input, 3 phase 110-230VAc output|
|SI23-D3 series,DC150V-450V input, 3 phase 220-240VAc output|
|SI23-D5 series,DC250V to 780VDC input, 3 phase 380-460VAC output|
|SI23-T3 series,DC350V to 780VDC input,3phase 380-440VAC output|
|Input power supply||Voltage，frequency||D1 model：90-400VDC/single-phase 110VAC 50/60HZ
D3 model：150-450VDC/ single-phase 220VAC 50/60HZ
D5 model：250-750VDC/ three-phase 380VAC 50/60HZ
T3 model：350-780VDC/ three-phase 380VAC 50/60HZ
|Allowable Fluctuations||Voltage imbalance rate：＜3%
Distortion rate: Conform to IEC 61800-2
|Frequency inverter efficiency||≥96%|
|Recommended voltage Voc||D1 model：175-360VDC
|Output||MPPT efficiency||reaches 99.9%|
|Output frequency range||0-320Hz (320 Hz or higher frequency can be customized)|
|Overload capacity||150% rated current 1min; 180% rated current 10s; 200% rated current 0.5s
|Protection Functions||Solar pump protection functions||Dry protection, low frequency protection, minimum power protection, sleep protection, overwater protection, pump overcurrent protection, etc.|
|Basic protection functions||Overvoltage, undervoltage, inverter overcurrent, module fault, inverter overload, motor overload, current detection zero-drift fault, current detection fault, E2RCM fault, grounding short-circuit fault, input phase loss, output phase loss , inverter overheating, communication fault, motor parameter self-learning fault, etc.|
|Short-circuit detection of motor grounding||Automatic detection whether the motor is Short-circuit to ground in power-on|
|Servo control||Support synchronous and asynchronous servo control, perform pulse tracking, zero
servo, indexing positioning and other basic servo functions, and support the orthogonal pulse given.
|Communication network||Supports RS485 communication, to realize network and linkage control between VEICHI inverters|
|Long-distance monitoring function||Supports long-distance program upgrade, data monitoring and lock function, can connect VEICHI GPRS module, and supports VEICHI virtual oscilloscope for monitoring and debugging.|
|Surroundings||Installation location||Outdoor, less than 1000m altitude, keep away from corrosive air and direct sunlight|
|Temperature, humidity||-10-60°C, 20%-95%RH (no condensation)|
|Vibration||The vibration is less than 0.5g when the vibration frequency is less than 20Hz|
|Installation mode||Suspension installation|
|Cooling method||Natural cooling/forced air cooling|