Editing Determining Argon hardware failure
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Motor power stage and braking resistor output consists IGBT transistors that typically short circuit if they are damaged. Testing of such failure needs only a multimeter with resistance measurement function. | Motor power stage and braking resistor output consists IGBT transistors that typically short circuit if they are damaged. Testing of such failure needs only a multimeter with resistance measurement function. | ||
− | #Unplug all connectors from the drive at least 30 minutes before testing as residue voltages may disturb this test | + | #Unplug all connectors from the drive at least 30 minutes before testing as residue voltages may disturb this test. After 30 minutes, ensure that [[Power supply safe discharging|voltage has been safely discharged]]. |
#Measure resistance between J4 pin VN against BR,U,V and W. A typical resistance is between 100 kΩ - 10 MΩ. If resistance is less than 10 kΩ, there may be a failed IGBT. | #Measure resistance between J4 pin VN against BR,U,V and W. A typical resistance is between 100 kΩ - 10 MΩ. If resistance is less than 10 kΩ, there may be a failed IGBT. | ||
#Measure resistance between J4 pin VP against BR,U,V and W. A typical resistance is between 100 kΩ - 10 MΩ. If resistance is less than 10 kΩ, there may be a failed IGBT. | #Measure resistance between J4 pin VP against BR,U,V and W. A typical resistance is between 100 kΩ - 10 MΩ. If resistance is less than 10 kΩ, there may be a failed IGBT. | ||
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{{tip|As D19 is a protection device, drive works without it as well, so it is possible to repair the drive just by removing D19. However without the diode, rest of the electronics inside drive are vulnerable to the same error that caused D19 to burn. Operating without D19 will always terminate warranty.}} | {{tip|As D19 is a protection device, drive works without it as well, so it is possible to repair the drive just by removing D19. However without the diode, rest of the electronics inside drive are vulnerable to the same error that caused D19 to burn. Operating without D19 will always terminate warranty.}} | ||
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