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Shenzhen City Jia Hong Wei Technology Co., Ltd.
Tel: 0755-28916839 13640994287
Contact: Mr. Shaw
303, floor 3, No. 296, Xinsheng Road, Longgang street, Longgang District, Shenzhen
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PLC/HMI

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施耐德Modicon TSX Micro PLC維修
Name:Heidelberg printing machine inverter maintenance
Model:印刷機變頻器
 Jia hong wei can repair Heidelberg printing machine inverter common faults: no display, lack of phase, over current, overvoltage, undervoltage, overheating, overload, grounding, parameter error, has shown no output, the module is damaged, error, etc. Please call service hotline 0755-28916839, 13640994287, we have professional customer service staff quickly respond to your needs.
Description
 Heidelberg printing machine inverter maintenance

Customer: shenzhen longgang a second-hand printer business

Brand: Heidelberg

Power: 37 kw / 380 v inverter

Fault phenomenon: after press start inverter show abnormal, can‘t operate.

Barrier analysis: this printer for more old-fashioned inverter terminal connections, Heidelberg control section for Fuji PLC control. Open the power inverter high voltage LED indicator, main control board on the LED indicator is on, the inverter switch power supply is normal. Dc voltage on the main board and main control board is like normal (5 v, 10 v, 15 v, 24 v). Later detected using oscilloscope main control board, found that there is a chip HC245 with input voltage and signal, without output signals, may be it is damaged

The cause of the problem: the printer using time is longer, after a lot of disassembling and component aging, main control board chip HC245 damage.

Troubleshooting: replace aging capacitance and the mainboard chip HC245 can.

Hong wei repair service hotline: 0755-28916839, 13640994287, Mr. Shaw

Description
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