YASKAWA SIEMENS CNC Series, Руководство по обслуживанию, Руководство для служащего по обслуживанию

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Safety precautions
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Maintaining
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Others
• Do not touch the terminals of the inverters or converters, as some of them
are at high voltage and very dangerous.
Otherwise electric shock could result.
• Do not leave the upper or lower cover open when the panel is energized.
Always turn off the circuit breaker before opening the covers.
Otherwise electric shock could result.
• Confirm that the main power and the control power are switched off and
the CHARGE lamp is not lit before starting maintenance work.
Be aware that capacitors can have a high voltage charge for a while even after the
circuit breaker is switched off.
• Only qualified personnel may perform maintenance or service work.
Otherwise electric shock could result.
• When handling the control PC boards, take necessary measure to prevent
their CMOS ICs from being damaged from electrostatic discharge.
Do not touch the CMOS ICs. Otherwise they could be damaged.
• Never attempt to change wiring connections, or engage or disengage con-
nectors while they are energized.
Otherwise injury could result.
• Never attempt to modify the product.
Otherwise electric shock or injury could result.
WARNING
CAUTION
WARNING