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| OPPHO Electronics Co., Ltd Add:Building G1, Dongke Industrial Par, Nanpu Village, Changping Town, Dongguan City, Guangdong Province Tel:86-769-83393855/83397855 Fax:86-769-83398055 Contact:Mr.Zhou/13925568556 E-mail:sales@oppho.com Website:www.oppho.com |
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Dongguan touch switch power supply Common Troubleshooting I. Symptom : Power supply indicator does not light . Check the contents : The power is connected, the knife is closed , if it is whether there is phase three-phase power . Remedy: connect the power , closed knife Second, the failure phenomenon: the power indicator is normal, the fan normal , light does not work . Check the contents : Start switch is in the start position Remedy: If the start switch is in the start position , the machine does not work, then struck again start switch to the start position Third, the failure phenomenon: the normal working indicator , current and voltage adjustment does not move . Check the contents : Check the regulator steady flow limiting and limited pressure knob is set to minimum position Remedy: limiting the voltage regulator , steady flow pressure limiting knob screw plating process requirements to a proper position Fourth, the failure phenomenon: work which, suddenly no current output, working lights normally. Check the contents : Check the output from the power supply to the plating tank connection is disconnected Remedy: Replace or reconnect cables V. Symptom: work which, suddenly there is no current output , protection indicator flashes. Check the contents : 1, check the working environment temperature is too high , the fan is working properly Remedy : Exclude fan failure , improved ventilation Check the contents : 2, determine whether the instantaneous overcurrent Remedy: Press the boot reboot , power can work Check the contents : 3, the input voltage is normal , with or without overvoltage, undervoltage , phase three-phase input without Remedy : Exclude distribution lines, power failures , according to reboot the boot process Check the contents : 4, check the power rectifier for shorts Remedy: Replace rectifier Check the contents : 5, check for damage power devices , the input rectifier module for damage Remedy: Replace the same type of power device and driver circuit checked for damage , there is then replaced, the replacement input plating rectifier modules. |
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