"Power: 15kw.
Voltage: 400V.
Brake resistor, a kind of ripple resistance, is mainly used in the mechanical system of the inverter to control the speed of the motor,
Help the motor to be converted into heat energy due to the regenerative power of the motor FR-E540-7.5K-CH PDF.
Braking unit principle: the brake unit is composed of a high power transistor GTR and its driving circuit.
Its function is to link the discharge current braking resistor capacitor voltage or not in the range of the time consumed and the DC part "overpressure",
Need to add external braking components, in order to speed up the speed of the consumption of renewable energy FR-E540-7 FR-E540-7.5K-CH5K-CH PDF. "CControl mode: 2 position control, PID control (with self tuning), PI control FR-E540-7.5K-CH Manual.
Control operation period: 500ms.
Applicable PLC:FX1N, FX2N, FX3U, FX2NC (to FX2NC-CNV-IF).
Applicable PLC:FX3UC (to FX2NC-CNV-IF or FX3UC-1PS-5V).
2 pass temperature input and 2 channel transistor output,
1 modules can be 2 systems for temperature regulation FR-E540-7.5K-CH PDF.
Single module to support PID (with self tuning), 2 position control, PI control.
Can be detected by the current detector (CT) is out of line. High speed output adapter (FX3U- - racy -BD)MITSUBISHI inverter FR-F740 series MITSUBISHI INSTRUCTION MANUAL.
Voltage level: three phase 400V.
Frequency converter capacity: 315KW.
The main circuit of the inverter can be divided into two categories in general: voltage type is the voltage source of the DC converter for AC inverter,
The filtering of the DC circuit is the capacitance; the current mode is the DC conversion of the current source to the AC inverter,
The DC loop filter is the inductor MITSUBISHI INSTRUCTION MANUAL.
Why is the frequency of the inverter voltage proportional to the change?
The electromagnetic torque of any motor is the result of the interaction between the current and the magnetic flux, the current is not allowed to exceed the rated value, otherwise it will cause the heating of the motor MITSUBISHI INSTRUCTION MANNUAL FR-E540-7 FR-E540-7.5K-CH INSTRUCTION MANUAL. 5K-CH Manual.
Therefore, if the magnetic flux decreases, the electromagnetic torque will decrease, which leads to the reduction of the load carrying capacity.