ABB analog input card EI802F HC-C-EI802F-X-10 control unit
Brand ABB color standard Application Industrial height 236mm rated current 168mA
Protection Level IP45 Suitable for motor power 225KW Application Site Power Industry Material Code GJR2391500R1220 Power industry HIEE401782R0001 Part Number EI802F
Applicable pipe 2 Whether imported is weighing 3.88 kg can be sold nationwide
ABB analog input card EI802F HC-C-EI802F-X-10 control unit
ABB EI802F servo drive
principle
The control core of HPMV is the microprocessor CPU. The microprocessor control system can start and protect the motor. The CPU triggers the phase Angle of SCR
Control to reduce the voltage applied to the motor, and then smoothly increase the motor torque by slowly controlling the voltage and current applied to the motor until the motor is added
Run at full speed. This starting mode can reduce the starting impulse current of the motor and reduce the impact on the power grid and the motor itself. It also reduced the number of couplets
In the motor, the mechanical load device on the mechanical impact to extend the service life of the equipment, reduce failure and downtime maintenance time.
A, acceleration mode :HPMV provides several acceleration modes, you can choose the appropriate starting curve according to the load of the induction motor.
The factory set voltage ramp with current limiting function is also a reliable starting mode to meet most applications. The initial torque is set to the motor just
It is good to drive the value when the load rotates, and then the voltage gradually rises smoothly, and the motor is smooth to the limit of the slope time and the motor starting current
Running at full speed. Analysis of the following two starting states:
If the motor reaches full speed before the end of the soft ramp, the automatic anti-oscillation circuit will automatically apply full pressure to the motor and make the ramp time no longer
It works. Can prevent any surge current or motor torque pulsation. This situation can usually occur when the load is not applied to the motor while the motor operator
Used during motor starting at reduced pressure and low rotation
If the motor does not reach full speed before the end of ramp time, the current limit setting will control the high output torque in proportion
The HPMV feedback sensor automatically prevents the motor from stalling over overload or exceeding the acceleration setting time
The current limiting function provides an effective means and control method for the amount of current absorbed by the motor from the grid or the generator, when the motor starts up to the limit
After the torque corresponding to the fixed starting current value, the torque and current will be automatically maintained, and the current limit value is not affected by the set ramp time
Until the motor reaches full speed. When the motor reaches full speed operation, the motor current drops to the current value of normal full speed operation, the HPMVK medium and high voltage soft starter has a full speed operation state output relay, so that the bypass high voltage vacuum contactor is closed, so that the electrical and mechanical flow through the bypass contactor, so as to prevent
The heat loss caused by the pressure drop generated by SCR conduction contributes to the working efficiency and reliability. MPMV is operated at full pressure, just like other starters
After the motor is soft started, the grid voltage is directly added to the motor, but the advantage of other starting methods is that HPMV has a full electronic protection function
Its sensitivity and response speed to fault protection are calculated in milliseconds, which is unmatched by conventional motor starters and protectors.
ABB analog input card EI802F HC-C-EI802F-X-10 control unit
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