ABB ACS800-17 - Planning the electrical installation; Motor selection and compatibility

Planning the electrical installation
63
Planning the electrical installation
What this chapter contains
This chapter contains the instructions that you must follow when selecting the motor,
the cables, the protections, the cable routing and the way of operation for the drive
system.
Note: The installation must always be designed and made according to applicable
local laws and regulations. ABB does not assume any liability whatsoever for any
installation which breaches the local laws and/or other regulations. Furthermore, if
the recommendations given by ABB are not followed, the drive may experience
problems that the warranty does not cover.
Motor selection and compatibility
1. Select the motor according to the rating tables in chapter Technical data. Use
DriveSize PC tool if the default load cycles are not applicable.
2. Check that the motor ratings lie within the allowed ranges of the drive control
program:
• motor nominal voltage is 1/2 ... 2 · U
N
of the drive
• motor nominal current is 1/6 ... 2 · I
2hd
of the drive in DTC control and
0 ... 2 · I
2hd
in scalar control. The control mode is selected by a drive parameter.
3. Check that the motor voltage rating meets the application requirements:
See notes 6 and 7 below the Requirements table.
If the drive is equipped with … … and … … then the motor voltage
rating should be …
diode supply
(ACS800-01, ACS800-U1,
ACS800-02, ACS800-U2,
ACS800-04, ACS800-04M,
ACS800-U4, ACS800-07,
ACS800-U7)
no resistor braking is used U
N
frequent or long-term brake cycles
are used
U
ACeq1
IGBT supply
(ACS800-11, ACS800-U11,
ACS800-31, ACS800-17,
ACS800-37)
DC link voltage is not increased from
nominal (through parameter settings)
U
N
DC link voltage is increased from
nominal (through parameter settings)
U
ACeq2
U
N
= Rated input voltage of drive
U
ACeq1
= U
DC
/ 1.35
U
ACeq2
= U
DC
/ 1.41
U
ACeq
= Equivalent AC power source voltage of drive in V AC
U
DC
= Maximum DC link voltage of drive in V DC. For resistor braking, U
DC
= 1.21 × nominal DC link
voltage. For units with IGBT supply: see the parameter value. Note: Nominal DC link voltage is U
N
× 1.35 or
U
N
× 1.41 in V DC.