Technical data
vacon • 65
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7
7.1.3
Definitions of overloadability
High overload
= Following continuous operation at rated output current I
N
, the drive supplies 150% * I
N
for
1 min, followed by a period of at least 9 min at I
N
or below.
Example:
If the duty cycle requires 150% rated current for 1 min in every 10 min, the remaining 9 min
must be at rated current I
N
or less.
Figure 43. High overload.
Low overload
= Following
continuous
operation at rated output current I
N
, the drive supplies 110% * I
N
for
1 min, followed by a period of at least 9 min at I
N
or below.
Example:
If the duty cycle requires 110% rated current for 1 min in every 10 min, the remaining 9 min
must be at rated current I
N
or less.
Figure 44. Low overload.
NOTE!
For more information, refer to IEC61800-2 (IEC:1998) Standard.
I
N
IN*150%
1 min
9 min
IN*150%
Current
Time
IN
IN*110%
1 min
9 min
IN*110%
Current
Time
