AC Variable Frequency Inverter Drives VFD for Screw Feeder 400V

Features

Benefits

Open Loop and Closed Loop Flux Vector Motor Control

Excellent speed stability and low speed torque production is possible due to Flux Vector Control technology.

Overtorque and Undertorque Detection

Both the Overtorque and the Undertorque Detection functions can sense if there is an overloaded feeder or lack of material.

PID

Accurate?and?quick?response?control?of?material?into?the?production?process

Auto-Restart after momentary power loss.

Feeders?can?quickly?restart?after?fault?or?momentary?power?loss.

Power?loss?Ride-Through

The?material?feed?is?not?interrupted?during?brief?power?loss.

Torque?Limit

Use of Torque Limit can prevent screw or gear damage due to excessive torque from foreign material in the load.

Item

Specification

Input?frequency

50/60Hz

Output?frequency

0-400Hz

Overload?current

150%?rated?current?1min.

Control?mode

Close-loop?vector?control, ?sensor-less?vector?control, ?V/F?control

Starting?torque

150%?1hz?(with?PG?0hz)

Control?precision

±0.2%?(With?PG?±0.02%)

Torque?precision

±5%

Setting?frequency?resolution

Digital?command?0.01hz;?analog?command?0.03hz/60hz

Output?frequency?resolution

0.01Hz

Frequency?setting?signal

-10V~+10V；0~+10V(20kΩ)；4~20mA

Protection?function

Over voltage, under voltage, over load, relay, overheat speed stall, grounding, instant power cut compensation( within 2 sec for operation mode. Continue to operate after the power is available), Charging protection( not to display when the dc voltage of main circuit is less than 50v)

Enclosure

IP20

Cooling?mode

forced?air?cooling

Vibration

Less?than?0.2g?for?20hz

Ambient?temperature?/?Humidity

-10?Degrees~+40?Degrees?/?20~90%Rh?(no?condensation)