1. 50 centi degrees ambient temperature without derating, which is the leading technology among China frequency inverter brands.
2. The dual-core CPU control design greatly improves its performance and stability, compared to one sinlge CPU control design.
3QD200 frequency inverter can be customized and modified according to the customer's application request such as relay outputs can be extended.
4. Fully automatic SMT production process to ensure reliability and stability of the product.
5 Key Raw Material: all Infineon/FUJI IGBT module (non-single tube); chip is 100% imported international brand; Renesas 32-bit high-performance DSP & microcontroller; capacitor is Hitachi-Jianghai joint venture brand, and others are 100% gauranteed to be reliable quality branded suppliers.
6. In accordance with international standards for the design and testing, performance indicators is in full compliance with GB / T12668-2002, IEC61800-3 standard. QIROD is the first group to be certified by TUV SUD among all China inverter manufacturers.
7. Fully independent duct design to improve the ability of anti-dust; optional opeation modes for cooling fan are available to extend its service life;
8. Enforced three anti-paint coating to better service harsh environment applications.
9. Optimization of flux control to further greatly improve the low-frequency output torque.
10. Available to set the V / F curve with a custom curve.
11. Super low noise, the carrier frequency can be adjusted between 1.5K ~ 12K.
12. Timely control and protection to improve system stability.
13.The torque is automatically raised and starting torque is upto 150% / 0.5Hz (the torque control accuracy of ± 5%).
14. Output frequency: 0.50 ~ 400.0Hz (up to 600Hz) and resolution is 0.01Hz.
15. Supports linear acceleration & deceleration and S-curve acceleration & deceleration modes, as well as intelligent acceleration mode.
16. Independent drive into the corresponding overvoltage stall and the stall optimal regulation, able to better control output current and output voltage in order to maximum guarantee optimal control withoutany fault.
17. Wide power arrange: 0.4KW-500KW (including single-phase 220V product).
19. Rich independently programmable multi-function 6 to 8 digital inputs, compatible with 2 analog inputs, 1 open collector output, compatible with a high speed pulse output, 2 relay outputs;
20. Built-in PID control function to help customers to realize simple close loop control of flow, pressure, temperature, liquid level. Related parameter setup is simple, easy and convenient.
21.AVR automatic voltage adjustment and automatically current limit to make the system run more stable;
22. Speed tracking function realized by cooperation of hardware and software to achieve high-precision motor rotation speed tracking with no impact and smooth start;
23. Standard configuration of the RS485 serial communication interface, Adopt international standard MODBUS-RTU communication protocol with communication rates up to 12M; it is available toorganize one fast, efficient and reliable field sitebus network which is suitable for automation system integration.
24. Wide voltage range design owns strong adaptability for the grid voltage (can withstand ± 20% slide).
25. Perfect protection functions cover overvoltage, undervoltage, input or output phase loss, overheating, overload, external fault, overcurrent, phase short circuit, ground short circuit protection and so on.
26. The process of acceleration and deceleration adopts unique current algorithms to meet the instantaneous current heavy load situations;
27. We own special Fire Mode to force inverter constant operation without any stop.
28. Droop function: support multiple motors to drive the same load.
29. Compact structure to save installation space.
QD200 series frequency inverters (Three-phase 400V class)
G type (overloaded)
Motor power (kW)
Line current (A)
Rated output current (A)
Maximum transient current for 60s (A)
Basic performance and configuration
Rated voltage and frequency
Single-phase 200V class: 200V-240V,50Hz/60Hz
3-phase 400V class: 380V-480V , 50Hz/60Hz
Allowable value of change
Voltage: 380V-15% ~ 480V+10%; Frequency: ±15%
Maximum output voltage equals to input voltage
0.5 Hz to 400 Hz
150% of rated output current for 60s, 200% of rated output current for 2s
3-phase PWM, 2-phase PWM
V/f control for constant torque, V/f control for quadratic load, vector control without PG (open loop control),Energy-saving
Setting method of run command
Outer terminal, keyboard panel or serial communication
Setting method of speed command
Analog setting, keyboard, serial communication, UP/DOWN speed setting from external terminal
Speed setting resolution
Keyboard: 0.1 Hz
Analog setting: 0.05/50Hz (10bit)
Speed control precision
vector control without PG (open loop control): ±0.2%
Speed control range
V/f control 1:40
vector control without PG (open loop control) 1:200
Acceleration and Deceleration Time
1.5 kHz ~ 12 kHz, according to junction temperature automatically reduce the switching frequency
2 ways: AI1,AI2
DC voltage or DC current
Maximum input range
AI1: 0 to 5VDC, 0 to 10VDC, 0/4 to 20mA DC receivable AI2: 0 to 10VDC or PTC probe input receivable
1 way: AO1
DC voltage or DC current
Maximum input range
Voltage output: 0 to 10V, Current output: 0/4 to 20mA
0.75kw-11kW:LI1,LI2,LI3,LI4,AI1,AI2 15kW-500kW:LI,LI2,LI3,LI4,LI5,LI6,LI7,LI8,AI1,AI2 note:2 virtual logic input, capable of configuring AI1 and AI2 into logic input port (positive logic or negative logic)
Source or Sink
Maximum input range
0.75kW-11kW: pulse signal output (LO-CLO),relay output 1(T1A,T1B,T1C) 15kW-500kW:pulse signal output(LO-CLO),relay output 1,2(T1A-T1B-T1C,T2A-T2B-T2C)
RA-RB-RC, including a NO contact and a NC contact Maximum switch capacity: T1A,T1B: 3A at 250VAC, or 4A at 30VDC T2A,T2B: 2A at 250VAC or 30VDC
Serial communication interface
RS485 interface supports Modbus protocol.
4-digit LED digital display
For display of frequency setting, output frequency, fault code and parameter setting etc.
Development of QD200 series frequency inverters follows strict international standards and relevant recommended IEC and EN standards for control devices, especially IEC/EN61800-5-1 and IEC/EN61800-3.
Derating unnecessary when altitude is 1000m or below (Derating necessary at altitude higher than 1000m)
0.75kW-11kW: Reliable operation at -10 ~ 50°C without derating. When top protective cover is taken off, the environment temperature can be as high as +50 °C. Above +50 °C, the current drops by 2.2% for each rise of 1 °C in temperature. 15kW-500kW: Reliable operation at -10 ~ 40°C without derating. Storage: -25 ~ 70°C
No condensed water or drip at 5 ~ 95%, In accordance with IEC60068-2-3
15gn for continuous 11ms, In accordance with IEC/EN60068-2-27
Maximum antipollution capacity
Class 2, in accordance with IEC/EN61800-5-1
Top: IP41 (without removing the protective top cover). Other parts: IP20
Forced Air cooling
Packaging & Shipping
OEM Service is available
After-sales responding within 24 hours
One to one pre-sales consulting services
Factory located in Shanghai, with high-tech professional engineer teams
Technician could be assigned to go abroad to carry out site commissioning and technical training