ABB RDNA-01 Manuel d'utilisateur Page 302

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1-298 ACH550-UH User’s Manual
Maintenance
Capacitors
The drive intermediate circuit employs several electrolytic capacitors. Their life span
is from 35,000
90,000 hours depending on drive loading and ambient temperature.
Capacitor life can be prolonged by lowering the ambient temperature.
It is not possible to predict a capacitor failure. Capacitor failure is usually followed by
a input power fuse failure or a fault trip. Contact ABB if capacitor failure is suspected.
Replacements for frame size R5 and R6 are available from ABB. Do not use other
than ABB specified spare parts.
Control panel
Cleaning
Use a soft damp cloth to clean the control panel. Avoid harsh cleaners which could
scratch the display window.
Battery
A battery is only used in Assistant control panels that have the clock function
available and enabled. The battery keeps the clock operating in memory during
power interruptions.
The expected life for the battery is greater than ten years. To remove the battery, use
a coin to rotate the battery holder on the back of the control panel. Replace the
battery with type CR2032.
Note: The battery is NOT required for any control panel or drive function, except the
clock.
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