Item

Specifications

Standard

functions

Maximum frequency

• Vector control: 0–300 Hz• V/F control: 0–320 Hz

Carrier

Frequency

0.5–16 kHz

The carrier frequency is automatically adjusted based on the load features.

Input frequency

Resolution

Digital setting: 0.01 Hz

Analog setting: maximum frequency x 0.025%

Control mode

• Sensorless flux vector control (SFVC)

• Closed-loop vector control (CLVC)

• Voltage/Frequency (V/F) control

Startup torque

• G type: 0.5 Hz/150% (SFVC); 0 Hz/180% (CLVC)

• P type: 0.5 Hz/100%

Speed range

1:100 (SVC)

1:1000 (FVC)

Speed stability

Accuracy

±0.5% (SVC)

±0.02% (FVC)

Torque control

Accuracy

±5% (FVC)

Overload capacity

• G type: 60sor 150% of the rated current, 3s for 180% of the rated current

• P type: 60s for 120% of the rated current, 3s for 150% of the rated current

Torque boost

• Fixed boost• Customized boost 0.1%–30.0%

 V/F curve

• Straight-line V/F curve• Multi-point V/F curve

• N-power V/F curve (1.2-power, 1.4-power, 1.6-power,1.8-power,square)

V/F separation

Two types: complete separation; half separation

Ramp mode

 • Straight-line ramp• S-curve ramp

Four groups of acceleration/deceleration time with the range of 0.0–6500.0s

DC braking

DC braking frequency: 0.00 Hz to maximum frequency

Braking time: 0.0–36.0s

Braking action current value: 0.0%–100.0%

JOG control

JOG frequency range: 0.00–50.00 Hz

JOG acceleration/deceleration time: 0.0–6500.0s

Onboard multiple preset speeds

It implements up to 16 speeds via the simple PLC function or combination of DI terminal states.

Onboard PID

It realizes process-controlled closed loop control system easily.

Auto voltage

regulation (AVR)

It can keep constant output voltage automatically when the mains voltage changes.

Over voltage/

Over current stall Control

The current and voltage are limited automatically during the running process so as to avoid frequent tripping due to over voltage/over current.

Fast current limiting function

Minimizing over-current fault  protect the normal operation of the inverter

Torque limit and control

It can limit the torque automatically and prevent frequent over current tripping during the running process.

Torque control can be implemented in the CLVC mode.

Individualized

functions

High performance

Control of asynchronous motor and synchronous motor are implemented through the high-performance current vector control technology.

Power dip ride

Through

The load feedback energy compensates the voltage reduction so that the AC drive can continue to run for a short time.

Rapid current limit

It helps to avoid frequent over current faults of the AC drive.

Virtual I/Os

Five groups of virtual DI/Dos can realize simple logic control.

Timing control

Time range: 0.0–6500.0 minutes

Multi-motor

switchover

Four motors can be switched over via four groups of motor parameters.

Multiple

communication

Protocols

It supports communication via Modbus -RTU, PROFIBUSDP, CAN link and CAN open.

Motor overheat

Protection

The optional I/O extension card enables AI3 to receive the motor temperature sensor input (PT100, PT1000) so as to realize motor overheat protection.

Multiple encoder

Types

It supports various encoders such as differential encoder, open-collector encoder, resolver, UVW encoder, and SIN/COS encoder.