1140V shearer special frequency converter

Function description

Specifications

input

Rated Input Voltage (V)

AC 3PH 1140v（-15%~+15%）

Rated input frequency

50Hz/60Hz, allowable range 47~63Hz

Rated Input Efficiency (%)

More than 98%

Rated input power factor (%)

0.85 or higher

0.99 or higher

output

Rated Output Voltage (V)

0~input voltage

Output frequency

0~400Hz 

Operational control characteristics

Control mode

V/F (with V/F separation function), open-loop vector, closed-loop vector

Motor parameters are self-learning

Support motor stationary self-learning and rotation self-learning

speed regulation range

Closed-loop vector: 1:1000; open-loop vector: 1:100

Speed control accuracy

Closed-loop vector: ±0.1% maximum velocity; Open-loop vector:±0.5% maximum speed

Speed fluctuations

±0.3% (open-loop vector control); ±0.1% (closed-loop vector control)

Torque control accuracy

10% (open-loop vector control); 5% (Closed-loop vector control)

Starting torque

0.5Hz 150% (open-loop vector control); Zero frequency 180% (closed-loop vector control)

DC braking

DC braking at start, DC braking at shutdown

Overload capacity

150% rated current 60s, 180% rated current 10s

Protection function

Motor overheat protection, overload protection, overvoltage protection, undervoltage protection, input phase loss protection, output phase loss protection, overcurrent protection, overheat protection, overvoltage stall protection, overcurrent stall protection, short circuit protection and other protection functions

Peripheral interface

Analog input

1 channel (AI1, AI2) 0~10V/0~20mA

Analog output

2 channels (AO1, AO2) -10~10V /-20~20mA

Digital input

It comes standard with 5 digital inputs

Digital output

Standard 2 relay outputs, electric shock capacity: 3A/AC250V, 1A/DC30V

Communication mode

485 communication (MODBUS protocol) is standard, and CAN, fiber, and Profibus-DP are optional

other

keyboard

LCD display

Operating ambient temperature

-10°C~+40°C, and above 40°C need to be downgraded

relative humidity

5%~95% 

Storage temperature

-40℃~+70℃ 

altitude

Below 1000 meters, more than 1000 meters will be degraded by 1% for every 100 meters

Protection level

IP00

disposition

The whole series is equipped with input reactors as standard, and optional input filters, output reactors, and output filters