Et system EAC/AFV, Руководство пользователя

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Functional Description
ET System electronic GmbH 5
FUNCTIONAL DESCRIPTION
B
LOCK
D
IAGRAM
The following block diagram gives information about the various adjustment options.
Description:
1 Input connection between power supply endpoint and input terminal disk
2 Input Air Switch power input control
3 Input Filter
input inductor and capacitor filter
4 Rectifier Filter
converts input alternating current into direct current
5 Soft Start
D.C. capacitor is charged slowly to reduce impulse current
6 Inverter Circuit
converts direct current into PWM waveform
7 Transformer Filter
boosts the output voltage of IGBT and outputs the voltage after LC filter
8 Output
output voltage is transferred to the output terminal disk through the contactor
9 Lightning Protection Device
overvoltage protection, lightning protection, restraining surge current, absorbing spike pulse, etc.
10 Voltage Sampling
input voltage sampling conditioning circuit
11 SCR Drive
drives the control circuit of soft start SCR
12 IGBT Drive
amplifies PWM signals to drive IGBT power components
13 Voltage Feedback
steady output voltage amplitude
14 Voltage/Current Sampling Circuit
samples conditioning circuit of output voltage and current
15 Power Supply
power supply of all PCB
16 Main Control Circuit
processes all input and output signals
17 Display
touch screen display
18 EPO
emergency stop signal
19 Fuse Detection
transmits the fuse power-off signal to the control circuit for trip protection
20 Over-temperature Detection
transmits the over-temperature signal to the control circuit for trip protection