Technical data 49
Sizing
Drive sizing is based on the rated motor current and power. To achieve the rated
motor power given in the table, the rated current of the drive must be higher than or
equal to the rated motor current. The rated power of the drive must also be higher
than or equal to compared to the rated motor power. The power ratings are the same
regardless of the supply voltage within one voltage range.
In multimotor systems, the drive output current rating I
LD
must be equal to or greater
than the calculated sum of the input currents of all motors.
Note:
• The maximum allowed motor shaft power is limited to 1.5 · P
N
. If the limit
exceeds, motor torque and current are automatically restricted. The function
protects the input bridge of the drive against overload.
• The ratings apply at ambient temperature of 40 °C (104 °F) for I
2N
and 50 °C
(122 °F) for I
LD
.
Derating
For information on derating, see chapter Technical data, section Derating in ACS320
user’s manual (3AUA0000062599 [English]).
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