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8.5
Maintenance
This section explains how to mount a relay board and replace parts.
CAUTION
You can perform hot replacing, connecting or disconnecting the cards, cables or connectors
only if it is described in this document. In general, you must switch off the power before re-
placing, connecting or disconnecting the cards, cables or connectors.
WARNING
•
Use a vacuum cleaner or dry soft cloth to clean the devices.
•
During maintenance, use a wrist strap for ESD (Electrostatic Discharge) measures.
SEE
ALSO
For more information about static electricity, refer to:
7.1, “Routine Maintenance of Safety Control Unit” on page 7-2
<8.5 Maintenance >
8-18
IM 32Q06C10-31E
4th Edition : Jan.30,2015-00