Maintenance and Inspection13 -2WARNINGD Never touch high-voltage terminals in the Inverter or the Converter.Failure to observe this warning can result in an electric shock.D Close the upper and lower covers before supplying power to the Inverter or the Converter. Be-fore opening the covers, always shut OFF the molded-case circuit breaker.Failure to observe this warning can result in an electric shock.D Perform maintenance or inspection only after verifying that the CHARGE LED indicator and7-segment display go OFF after the main circuit power supply and control power supply havebeen turned OFF.The capacitors are still charged and can be dangerous.D Only authorized personnel should be permitted to perform maintenance, inspections, or partsreplacement. Remove all metal objects (watches, bracelets, etc.) before performing these op-erations. (Use tools which are insulated against electric shock.)Failure to observe this warning can result in an electric shock.CAUTIOND The control PC board employs CMOS ICs. Do not touch the CMOS elements.They are easily damaged by static electricity.D Do not connect or disconnect wires or connectors while power is applied to the circuits.Failure to observe this caution can result in personal injury.13