Editing Argon user guide/Power supply safe discharging

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# Remove power from J4 connector (both L and N lines). This can be done for example by unplugging the power cord from wall socket where the power comes from.
 
# Remove power from J4 connector (both L and N lines). This can be done for example by unplugging the power cord from wall socket where the power comes from.
 
# Wait at least 3 minutes after de-energization to allow capacitor voltage discharge.
 
# Wait at least 3 minutes after de-energization to allow capacitor voltage discharge.
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# Measure a DC voltage between VN and VP terminals of J4 connector with a multimeter rated at least up to 600 VDC as the worst case drive internal HV voltage may be over 400 VDC. '''Voltage has been successfully discharged if VN-VP voltage is less than 5 VDC.'''
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# Measure a DC voltage between VN and VP terminals of J4 connector with a multimeter rated at least up to 600 VDC as the worst case drive internal HV voltage may be over 400 VDC. Voltage has discharged if VN-VP voltage is less than 20 VDC.
 
{{electricshock|If DC voltage between VN and VP terminals of J4 connector is above 20 VDC after 3 minutes of de-energization, drive has internal failure of discharging circuity. In such case danger may be present even after weeks of wait. Contact your supplier first for further assistance before continuing servicing.}}
 
{{electricshock|If DC voltage between VN and VP terminals of J4 connector is above 20 VDC after 3 minutes of de-energization, drive has internal failure of discharging circuity. In such case danger may be present even after weeks of wait. Contact your supplier first for further assistance before continuing servicing.}}
  
 
Discharging 24 VDC supply does happen instantly after 24 V has been removed. However, this does not affect AC side discharge in any way.
 
Discharging 24 VDC supply does happen instantly after 24 V has been removed. However, this does not affect AC side discharge in any way.
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[[Category:Argon_user_guide]]
 

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