Vacon 100 X - Definitions of Overloadability

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7
7.1.3 Definitions of overloadability
High overload= Following continuous operation at rated output current I
N
, the converter 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 converter 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, please refer to IEC61800-2 (IEC:1998) Standard.
I
N
I
N*150%
1 min 9 min
I
N*150%
Current
Time
I
N
I
N*110%
1 min 9 min
I
N*110%
Current
Time