ABB ACH580-01 Series, Hardware Manual

Page: 19 / 396

Safety instructions 19

Additional instructions and notes
WARNING! Obey these instructions. If you ignore them, injury or death, or
damage to the equipment can occur.
• A drive with the internal EMC filter connected can be installed to a symmetrically
grounded TN-S system. If you install the drive to another system, check if you
must disconnect the EMC filter. See sections
•
IEC: When to disconnect EMC filter or ground-to-phase varistor: TN-S, IT,
corner-grounded delta and midpoint-grounded delta systems on page 117 ,
and Guidelines for installing the drive to a TT system on page 118 .
• North America: When to connect EMC filter or disconnect ground-to-phase
varistor: TN-S, IT, corner-grounded delta and midpoint-grounded delta
systems
on page 171 , and Guidelines for installing the drive to a TT system on
page 172 .
WARNING! Do not install a drive with the EMC filter connected to a system
that the filter is not suitable for. This can cause danger, or damage the
drive.
Note: When the internal EMC filter is disconnected, the EMC compatibility of the
drive is considerably reduced. See section EMC compatibility and motor cable
length on page 288 .
• A drive with the ground-to-phase varistor connected can be installed to a
symmetrically grounded TN-S system. If you install the drive to another system,
check if you must disconnect the varistor. See sections
•
IEC: When to disconnect EMC filter or ground-to-phase varistor: TN-S, IT,
corner-grounded delta and midpoint-grounded delta systems on page 117 ,
and Guidelines for installing the drive to a TT system on page 118 .
• North America: When to connect EMC filter or disconnect ground-to-phase
varistor: TN-S, IT, corner-grounded delta and midpoint-grounded delta
systems
on page 171 , and Guidelines for installing the drive to a TT system on
page 172 .
WARNING! Do not install a drive with the ground-to-phase varistor
connected to a system that the varistor is not suitable for. If you do, the
varistor circuit can be damaged.
• Use all ELV (extra low voltage) circuits connected to the drive only within a zone
of equipotential bonding, that is, within a zone where all simultaneously
accessible conductive parts are electrically connected to prevent hazardous
voltages appearing between them. You can accomplish this by a proper factory
grounding, that is, make sure that all simultaneously accessible conductive parts
are grounded to the protective earth (PE) bus of the building.
• Do not do insulation or voltage withstand tests on the drive or drive modules.