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7.1 INSTALLATION AFTER A LONG PERIOD OF STORAGE
If input power has not been applied to the drive for a period of time exceeding
three years (due to storage, etc), the electrolytic DC bus capacitors within the
drive can change internally, resulting in excessive leakage current. This can result
in premature failure of the capacitors if the drive is operated after such a long
period of inactivity or storage.
In order to reform the capacitors and prepare the drive for operation after a long
period of inactivity, apply input power to the drive for 8 hours prior to actually
operating the drive/motor system.
7.2 EXPLOSION PROOF APPLICATIONS
Explosion proof motors that are not rated for inverter use lose their certification
when used for variable speed. Due to the many areas of liability that may be
encountered when dealing with these applications, the following statement of
policy applies:
“AC Technology Corporation inverter products are sold with no warranty of
fitness for a particular purpose or warranty of suitability for use with
explosion proof motors. AC Technology Corporation accepts no
responsibility for any direct, incidental or consequential loss, cost, or damage
that may arise through the use of its AC inverter products in these
applications. The purchaser expressly agrees to assume all risk of any loss,
cost, or damage that may arise from such application.
WARNING!
Severe damage to the drive can result if it is operated after a long period of storage
or inactivity without reforming the DC bus capacitors!
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