DRV-28 inverter
s Product overview
-10-
Function description
Specification
Torque control precision 10% (SVC) , 5% (VC)
Starting torque
Asynchronous motor: 0.25Hz/150% (SVC)
Synchronous motor: 2.5 Hz/150% (SVC)
0Hz/200% (VC)
Overload capacity
150% of rated current: 1min;
180% of rated current: 10s;
200% of rated current: 1s;
Running
control
performance
Frequency setup mode
Digital, analog, pulse frequency, multi-step speed
running, simple PLC, PID, MODBUS communication,
PROFIBUS communication, etc;
Realize switch-over between the set combination and the
set channel
Automatic voltage
regulation function
Keep the output voltage constant when grid voltage
changes
Fault protection function
Fault protection function
Provide over 30 kinds of fault protection functions:
overcurrent, overvoltage, undervoltage,
over-temperature, phase loss and overload, etc
Speed tracking restart
function
Realize impact-free starting of the motor in rotating
Note: This function is available for 4kW and above
models
Peripheral
interface
Terminal analog input
resolution
No more than 20mV
Terminal digital input
resolution
No more than 2ms
Analog input
2 inputs, AI1: 0–10V/0–20mA; AI2: -10–10V
Analog output
1 output, AO1: 0–10V /0–20mA
Digital input
Four regular inputs; max. frequency: 1kHz; internal
impedance: 3.3kΩ
Two high-speed inputs; max. frequency: 50kHz; supports
quadrature encoder input; with speed measurement
function
Digital output
One high-speed pulse output; max. frequency: 50kHz
One Y terminal open collector output
Relay output
Two programmable relay outputs
RO1A NO, RO1B NC, RO1C common port
RO2A NO, RO2B NC, RO2C common port
Contact capacity: 3A/AC250V, 1A/DC30V
Extension interface
Three extension interfaces: SLOT1, SLOT2, SLOT3
