Siemens YASKAWA 840DI Maintenance Manual page 18

Safety precautions
• During maintenance/check, post a warning display such as "No Energizing
• When replacing fuses or batteries, use designated products.
• Don't touch directly the control boards by your finger. Those are use CMOS ICs.
• Do not change wiring, or connect or disconnect connectors, while power is being
• When an alarm occurs, remove the cause to secure safety and then perform an
• After completing maintenance/check, be sure to check the following:
• For malfunction concerning machine sequences, refer to the relevant manuals
General notes
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Powering on the primary power supply of the related control panel so that those
other than the personnel concerned may not turn on power inadvertently.
Otherwise, an electric shock or an injury could result.
Otherwise, a fire or a damage may result.
Otherwise, a damage could result.
supplied.
Otherwise injury could result.
alarm reset operation.
Otherwise, a malfunction could result.
• All tightening bolts have been securely tightened.
• No tools are left within the control panel.
• The door of the control panel is closed securely.
Otherwise, an electric shock, an injury, a fire, or a malfunction could result.
issued by the machine tool builder.
Notes on the usage of this manual
• Illustrations and drawings in this manual may show parts with their cover or safety
shield removed so that inside details can be seen. Regardless of the drawings, the
products must always be operated according to the manual with all the covers and
shields installed in place.
• Illustrations and photos in this manual represent typical configurations, and may not
exactly represent the products delivered.
• This manual is subject to change to reflect modification or specification change to the
product or to make it easier to read. An updated manual No. means a new version of this
manual.
• If you need additional copies of this manual to replace damaged or lost ones or
otherwise, please order from the nearest sales office indicated on the back cover
referring to the manual No. printed on the front cover of this manual.
• If the nameplate on the products is defaced or damaged, order a new one from your
dealer or the nearest sales office indicated on the back cover of this manual.
• Yaskawa Siemens Numerical Controls would not guarantee the quality of the product
modified by the customer. Yaskawa Siemens Numerical Controls is not responsible for
any injury or damage due to the product modified by the customer.
CAUTION
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