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Why does the Altivar 58 display a non-standard hp rating when the HP rating is increased or decreased?

The HP as displayed on the drive identification screen (rEF) is not critical to the operation of the drive. On some of the drives the ratings may not appear as expected.
When the HP is increased for Variable torque in the rEF screen at + (plus sign) will be displayed.
If there is no + sign the drive is set for the Constant Torque rating.
To verify proper rating check the nominal current (nCr in the drC menu) and thermal current (Ith in the SEt menu) settings.
If the values can be set to the motor FLA the drive will operate properly.


CTA-ID : 2011140
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