Yaskawa Varispeed-656 DC5 System Regen Converter - Manual (Page 19)

VS-656DC5 Enclosure Installation Manual
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6. Maintenance/Inspection
Appropriate maintenance management is necessary in order to assure reliable operation in the
long term. The customer should perform maintenance management in accordance with the
maintenance items shown below.
6.1 Cleaning
Clear away all grime and dust form the outside before cleaning the inside of the enclosure.
Use suction rather than blowing to clean the inside of the enclosure. Close the doors
securely after cleaning is finished.
(Dust Filter)
The dust filter is attached at the bottom of the inside of the door. Wash the filter with water
or a soap solution if it becomes clogged by dust, etc. The filter should generally be cleaned
every 3~6 months. Replace the filter after 10 washings.
• Do not touch the terminals on the enclosure as they carry a high voltage. This
may lead to electric shock.
• Perform maintenance and testing after removing the upper level power supply
and verifying that the CHARGE lamp has gone out. There is danger in that a
charge remains in the capacitor. This may lead to electric shock. In any case,
use a voltameter to measure for high voltage prior to performing maintenance.
• Only designated persons should perform maintenance, testing, and parts
replacement. When performing maintenance, remove accessories (watches,
bracelets, etc.) prior to working. Use insulated tools. Failure to do so may lead
to electric shock.
• The control unit uses an CMOS IC. Keep this in mind while handling the unit.
Static electricity may damage the IC if it is touched directly with fingers.
• Do not change wiring or install/remove connectors while power is applied.
This may result in injury.
WARNING
CAUTION