ABB ACS550-02 User Manual page 10

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Note 1: The abbreviations used in the table are defined below.
Abbreviation Definition
U nominal voltage of the supply network
N
Û
peak line-to-line voltage at motor terminals which the motor insulation must withstand
LL
P motor nominal power
N
du/dt du/dt filter at the output of the drive or internal du/dt limitation. Contact ABB.
CMF common mode filter toroidal cores, included in ACS550 R7 and R8.
N N-end bearing: insulated motor non-driven end bearing
n.a. Motors of this power range are not available as standard units. Consult the motor manufacturer.
Note 2: Explosion-safe (EX) motors
The motor manufacturer should be consulted regarding the construction of the motor insulation and
additional requirements for explosion-safe (EX) motors.
Note 3: HXR and AMA motors
All AMA machines (manufactured in Helsinki) to be supplied by a drive have form-wound windings. All
HXR machines manufactured in Helsinki since 1997 have form-wound windings.
Note 4: ABB motors of types other than M2_, M3_, HX_ and AM_
Select according to non-ABB motors.
Note 5: Resistor braking of the drive
When the drive is in braking mode for a large part of its operation time, the intermediate circuit DC
voltage of the drive increases, the effect being similar to increasing the supply voltage by up to 20
percent. The voltage increase should be taken into consideration when determining the motor insulation
requirement.
Example: Motor insulation requirement for a 400 V application must be selected as if the drive were
supplied with 480 V.
Installation