Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 168)

The VS-626M5 PC NC Maintenance Manual
4-147
4.8 Maintenance And Inspection
This chapter describes basic maintenance and inspection procedures for the VS-
626M5 and the VS-656MR5.
• Never touch high-voltage terminals in the inverter and the converter. Failure to
observe this warning can result in an electric shock.
• Close the upper and lower covers before powering up the inverter or the converter.
Shut OFF the molded-case circuit breaker prior to opening the covers. Failure to
observe this warning can result in an electric shock.
• Perform maintenance or inspection only after verifying that the CHARGE LED and 7-
segment LED go OFF, after the main circuit power supply and control power supply
are turned OFF. The capacitors are still charged and can be dangerous.
• Only authorized personnel are permitted to perform maintenance, inspections or
parts replacement.
• Remove all metal objects (watches, bracelets, etc.) before operation. Use tools
which are insulated against electric shock. Failure to observe this warning can result
in an electric shock.
• The control PC board employs CMOS ICs. Do not touch the CMOS elements. They
are easily damaged by static electricity.
• Do not connect or disconnect wires or connectors while power is applied to the cir-
cuit. Failure to observe this caution can result in personal injury.
WARNING
CAUTION