Planning the electrical installation 41
When more than 4 motors need to be controlled by one drive, contact your local ABB
representative.
Selecting the power cables
General rules
Dimension the input power and motor cables
according to local regulations
.
• The input power and the motor cables must be able to carry the corresponding
load currents. See section
for the rated currents.
• The cable must be rated for at least 70 °C (158 °F) maximum permissible
temperature of the conductor in continuous use. For US, see section
on page
• The conductivity of the PE conductor must be equal to that of the phase
conductor (same cross-sectional area).
• 600 V AC cable is accepted for up to 500 V AC.
• Refer to chapter
on page
for the EMC requirements.
A symmetrical shielded motor cable (see the figure below) must be used to meet the
EMC requirements of the CE and C-Tick marks.
A four-conductor system is allowed for input cabling, but a shielded symmetrical
cable is recommended.
Compared to a four-conductor system, the use of a symmetrical shielded cable
reduces electromagnetic emission of the whole drive system as well as motor bearing
currents and wear.
Summary of Contents for ACS355 series
Page 1: ...ABB machinery drives User s manual ACS355 drives ...
Page 4: ......
Page 16: ...16 ...
Page 32: ...32 Operation principle and hardware description ...
Page 58: ...58 Electrical installation ...
Page 74: ...74 Start up control with I O and ID run ...
Page 106: ...106 Control panels ...
Page 120: ...120 Application macros ...
Page 178: ...178 Program features ...
Page 338: ...338 Fieldbus control with embedded fieldbus ...
Page 368: ...368 Fault tracing ...
Page 404: ...404 Dimension drawings ...
Page 410: ...410 Appendix Resistor braking ...
Page 434: ...434 Appendix Permanent magnet synchronous motors PMSMs ...