ABB ACS 600 Hardware Manual page 24

Appendix A – ACS/ACC 600 Technical Data
ACx 607 Drives
A-4
For IP 54 enclosures with Normal Use:
Below +40 ° C: Locate the pertinent drive type code in the Derate
Table to determine the curve number to apply. Find the ambient
temperature at the bottom of the Derate Curves. Follow this
temperature up vertically to where it meets the applicable curve
number. From the point of intersection read across horizontally to
determine the appropriate percent derate. The current rating equals
the I current from the Drive Output Ratings table times the percent
2N
derate.
Above +40 ° C: Calculate the I
per the IP 54 Normal Use, Below +40 ° C instructions immediately
above. Starting from this current level decrease the current rating an
additional 3.5% of I
2N
For IP 54 enclosures with Heavy Duty Use:
Below +40 ° C: Use the I
Output Ratings table. No derating is required.
Above +40 ° C: Calculate a tentative derated current per the IP 54
Normal Use, Above +40 ° C instructions above. Compare this
calculated value with the I
Ratings table. The current rating equals the smaller of I
Drive Output Ratings table or the calculated derated current.
Maximum temperature in all cases should not exceed 50 ° C.
For IP 21/22 enclosures with Normal Use:
Below +40 ° C: Use the I
Ratings table. No derating is required.
Above +40 ° C: Decrease I
40 ° C.
For IP 21/22 enclosures with Heavy Duty Use:
Below +40 ° C: Use the I
Output Ratings table. No derating is required.
Above +40 ° C: Use the I
Output Ratings table. No derating is required.
For IP 54 enclosures with Normal Use:
Below +40 ° C: Use the I
Ratings table. No derating is required.
Above +40 ° C: Decrease I
40 ° C.
For IP 54 enclosures with Heavy Duty Use:
Below +40 ° C: Use the I
Output Ratings table. No derating is required.
Above +40 ° C: Use the I
current derate (if any) at 40 ° C
2N
for each 1 ° C above 40 ° C.
current rating given in the Drive
2HD
current given in the Drive Output
2HD
current rating given in the Drive Output
2N
by 1.5% for every 1 ° C above
2N
current rating given in the Drive
2HD
current rating given in the Drive
2HD
current rating given in the Drive Output
2N
by 1.5% for every 1 ° C above
2N
current rating given in the Drive
2HD
current rating given in the Drive
2HD
601/604/607 US Supplement
from the
2HD