ABB ACS800 Hardware Manual page 48

40
3. Check that the motor voltage rating meets the application requirements:
If the drive is equipped
with ...
diode supply
ACS800-01, -U1, -02, -U2,
-04, -04M, -U4 -07, -U7
IGBT supply
ACS800-11, -U11, -31, -
U31, -17, -37
U
U
U
See notes 6 and 7 below the
4. Consult the motor manufacturer before using a motor in a drive system where the
motor nominal voltage differs from the AC power source voltage.
5. Ensure that the motor insulation system withstands the maximum peak voltage in
the motor terminals. See the
insulation system and drive filtering.
Example 1: When the supply voltage is 440 V and a drive with a diode supply is
operating in motor mode only, the maximum peak voltage in the motor terminals
can be approximated as follows: 440 V · 1.35 · 2 = 1190 V. Check that the motor
insulation system withstands this voltage.
Example 2: When the supply voltage is 440 V and the drive is equipped with an
IGBT supply, the maximum peak voltage in the motor terminals can be
approximated as follows: 440 V · 1.41 · 2 = 1241 V. Check that the motor
insulation system withstands this voltage.
Planning the electrical installation
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= Rated input voltage of the drive
N
= U /1.35
ACeq1 DC
= U /1.41
ACeq2 DC
U is the equivalent AC power source voltage of the drive in VAC.
ACeq
U is the maximum DC link voltage of the drive in VDC.
DC
For resistor braking: U
For units with IGBT supply: See the parameter value.
(Note: Nominal DC link voltage is U
... and ...
no resistor braking is in use
frequent or long term brake cycles will
be used
DC link voltage will not be increased
from nominal (parameter setting)
DC link voltage will be increased from
nominal (parameter setting)
= 1.21 × nominal DC link voltage.
DC
Requirements table, pages
Requirements table
... then the motor voltage
rating should be ...
U
N
U
ACeq1
U
N
U
ACeq2
× 1.35 or U × 1.41 in VDC.)
N N
43 and 44.
below for the required motor