Customized Induction Heating Power Supply Brazing Quenching Electric Induction Heater

Control Character

Frequency Setting

Resolution

V/F Control

V/F Curve

(voltage frequency

character)

Reference frequency setting 5~600 Hz, multipoint V/F

curve setting, or fixed curve of constant torque, low decreasing

torque 1, low decreasing torque 2, square torque

Torque

Compensation

Automatic

Current-limiting

and

Voltage-limiting

Automatic lifting: automatically determine the lifting torque based

on the output current combined with the motor parameters

Senseless Vector

Control

Voltage Frequency

Character

Adjust pressure/frequency ratio according to motor parameter and

unique algorithm

Current and

Voltage Restrain

Current closed-loop control, free from current impact, perfect

restrain function of overcurrent and overvoltage

Undervoltage

Restrain during

Running

Specially for users with a low or unsteady voltage power grid: even lower than the

allowable voltage range, the system can maintain the longest possible operating time

based on its unique algorithm and residual energy allocation strategy

Typical function

Multi-velocity and

Traverse Operation

7-segment programmable multi-velocity control, multiple operating modes are

optional.

Built-in PID controller (able to preset frequency). Standard configuration RS485

communication function, multiple communication protocol for choice, synchronizing

control function.

RS485

Communication

Frequency Setting

Analog Input

Direct voltage 0~10V, direct current 0~20mA

(optional up limit and lower limit)

Digital Output

Operation panel setting, RS485 port setting, UP/DW terminal

control, or combined with analog input

Analog Input

1 channel OC output and one channel relay output

(TA, TB,TC), up to 14 choices

1 channel analog signal output, output ranging within 0~20mA or

0~10V with flexibly setting, achievable output of physical

quantities like set frequency, output frequency

Automatic

Steady-voltage

Operation

Dynamic steady state, static steady state, and unsteady voltage for choices to obtain

the steadiest operation

Acceleration and

Deceleration Time

Setting

Brake

Dynamic

Braking

Dynamic braking initial voltage, backlash voltage and dynamic braking continuous

adjustable

DC

Braking

Upper limit and lower limit frequency setting, frequency hopping operation, reversal

running restraint, slip frequency compensation, RS485 communication, frequency

control of progressive increase and decrease, failure recovery automatically, etc.

Operatio

n Panel

Display

Running

State

Output frequency, output current, output voltage, motor speed, set frequency, module

temperature, PID setting, feedback, analog input and output

Alarm

The latest 1 faults record; running parameters record when the latest fault tripping

happens including output frequency, set frequency, output current, output voltage, DC

voltage and module temperature etc 6 running parameters record.

Overcurrent, overvoltage, undervoltage, module fault, electric thermal relay, overheat,

short circuit, default phase of input and output, motor parameter adjustment

abnormality, internal memory fault, etc.

Environment

Ambient

Temperature

－10℃～＋40℃ (please run the VFD in derated capacity when ambient temperature

is 40°C~50°C)

Installation Method