Veichi AC70G series frequency drive is developed on the basis of AC70 platform with improved structure design and wiring method. Below are its main features:
AC70G adopts modular design that it features low temperature rise, low noise and small size. Its wiring goes from top to the bottom so that it is very convenient for users to rewiring in the cabinet.
It supports voltage fluctuation from -15% to +15% that the AC70G engineering inverter can work properly and safely without special treatment.
Pained with special conformal coatings which ensures the AC70G is anti-static, anti-corrosion and anti-dust. It effectively extends its service life.
The auxiliary power supply, cooling fan, electric contactor and more are all DC components that it is suitable for direct DC power supply, common DC bus schemes and EPS power supply.
AC70G adopts standard RS485 communication, supporting MODBUS-RTU and PROFIBUS communication protocol. It is convenient to facilitate the connection between PC and PLC for remote monitoring.
Super powerful protection functions, security self-check function, improved master-slave control function and multiple frequency setting modes.
Three phase 220V, 50/60Hz; three phase380V 50/60Hz
Voltage: ±15%, frequency: ±5%
Frequency control range
G: 0-400Hz (P:0-400Hz, ZS model:0-400Hz, H model:0-2000Hz)
Output frequency accuracy
Max frequency ±0.5%
Frequency set resolution imaging
0.01Hz: Operating the keyboard arrow keys
50% -100% of the rated voltage, motor rated frequency 25-400Hz(2000Hz) adjustable
1.0-15.0KHz, random carrier modulation
0~25.0% adjustable, auto torque upgrade?random V/F optional
G, H model: 150% for one minute, 180% for 2 second, 200% instant jump.
Acceleration and deceleration time
0.1-6500 for minute
Rated output voltage
Take advantage of the voltage compensation function, with Rated voltage to motor for 100%,the voltage can be set In the 50 -100% scope(the voltage output should not exceed the input )
Automatic voltage adjustment function
When the grid voltage fluctuations, changes in the output voltage is very small, remained constant V/F
Automatic energy-saving operation
According to the load conditions, automatic optimize the V/F curves, implement energy saving operation
PID control, acceleration and deceleration time adjustable, Acceleration and deceleration mode variable, the carrier frequency adjustment, Torque upgrade, current limiting, Speed tracking restart and start again, frequency hopping, frequency fluctuate limitation control, procedure running, Multi-speed pendulum frequency operation, RS485, analog output, pulse output frequency
Energy-consuming braking, DC braking
Frequency setting input
Keyboard number settings, keyboard Potentiometers, external terminal VS1 : 0 ~ 10V, VS2 external terminals : - 10V - 10V, the external terminal AS : 4-20mA, S485 and signal composition and terminal options
Signal feedback input
External terminals VS1 : 0 ~ 10V, external terminals VS2:-10V - 10V, external terminals AS : 4-20mA, RS485, frequency pulse input
Input order signals
Start, stop, positive and negative rotating , inching, multi-speed, free parking, reposition, acceleration and deceleration timing choice, frequency settings channel choice, external fault alarm
External output signal
Relay output, the collector output, 0-10V output, 4-20mA output, the frequency pulse output
Overvoltage, undervoltage, current limiting, over-current, overload, electric thermal relays, overheat, pressure stall, data protection
Function number, data
Output frequency, given frequency, output current, input voltage, output voltage, motor speed, PID volume, feedback, PID to the quantitative, module temperature, input and output terminal condition
Overvoltage, undervoltage, overcurrent, short circuit, phase missing, overload, heat, pressure stall, current limiting, data protection is damaged, current Fault operating conditions, historical fault
Indoor, elevation of not more than 1000 m, non-corrosive gases and direct sunlight
-10 — +40°C, 20%—90%RH(No condensation)
Below 20Hz less than 0.5g
-25 — +65°C
Wall-mounted mode, closet mode