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NPN silicon controlled easy to burst pipes and the cause of the error

Datetime: 2014-11-19 15:44:28    Views: 781

The fish is common in the process of applying the error has the following condition: 1, state 2, hardware error; error; 3, system error 4, line 5; error; error, power. As a common fishing equipment parts, the connection function of SCR affects the output efficiency and pulse frequency of fishing device directly. Now the common thyristor Dingsheng electromechanical by itself caused by doubt fish products can not be used to show an overview of thyristor for fishing doubt the most comprehensive solution for you.

First of all, we should understand what are the causes of common problems of electric fish?

1, state defects: DC over / long voltage, DC over-current, AC overcurrent, undervoltage protection, frequency deviation is too large, ground fault, lack of equality.

2, hardware defects: current board defects, trigger plate defects, IGBT faults, pulse motor defects, etc..

3 、 system faults: Watchdog trouble, system parameter abnormality, clock fault, etc..

4, communication faults: TIMEOUT, OVERRUN and so on。

5, power failure: when the control power is too high or too low, alarm。

完美彩票 Next, let"s specifically analyze the silicon controlled question:

1。 The fishing device operation panel is not displayed:

We should control the voltage and frequency adjustment of 12V SCR voltage measurement, if zero is SCR using normal, or need to replace the silicon controlled high quality connection products; second is the main measure of fishing with a controllable silicon resistance is normal;

2, electronic fishing device can not measure the incoming line data:

See the fish line fault record was not found to have problems, and for each button on the operation panel operation without doubt。 LED indicator view fish A20 motherboard, A23 power supply board were normal, with a test pencil for measuring fishing power supply, a phase display is not normal, the multimeter is used to measure the three results were: Vab=370V, Vac=185V, Vbc=185V。 Check the incoming line, SCR row contact bad。

3 、 the carbonization question of the terminal in the inverter module:

When viewing the inverter module without adverse symptoms, poor insulation should doubt view between each controlled silicon and water, once found between PP1 and N DC bus loop terminal of the plastic insulated terminals are considered from the viewpoint of safety charring, replace the damaged fishing device, SCR, fishing can resume normal operation.

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