ABB ACS480, Руководство по оборудованию, Страница: 40 / 180

￭ North America
Installations must meet the requirements of UL (UL 508C) and/or CSA C22.2 No. 14 and
be compliant with NFPA 70 (NEC) and/or Canadian Electrical Code (CE) along with state
and local codes for your location and application. (NFPA 70 (NEC) = National Fire Protection
Association 70 (National Electric Code).
￭ Other regions
The disconnecting device must conform to the applicable local safety regulations.
Selecting the main contactor
You can equip the drive with a main contactor.
Obey these guidelines when you select a customer-defined main contactor:
• Dimension the contactor according to the nominal voltage and current of the drive. Also
consider the environmental conditions such as ambient temperature.
• Select contactor with utilization category AC-1 (number of operations under load)
according to IEC 60947-4,
Low-voltage switch gear and control gear.
• Consider the application life time requirements.
Checking the compatibility of the motor and drive
Use asynchronous AC induction motor, permanent magnet synchronous motor or ABB
synchronous reluctance motor (SynRM motors) with the drive. Several induction motors
can be connected to the drive at a time.
Make sure that the motor and the drive are compatible according to the rating table in the
technical data.
Selecting the power cables
￭ General guidelines
Select the input power and motor cables according to local regulations.
• Current: Select a cable capable of carrying the drive (or motor) nominal current.
• Temperature: For an IEC installation, select a cable rated for at least 70 °C (158 °F)
maximum permissible temperature of conductor in continuous use. For North America,
select a cable rated for at least 75 °C (167 °F).
• Voltage: 600 V AC cable is accepted for up to 500 V AC. 750 V AC cable is accepted
for up to 600 V AC. 1000 V AC cable is accepted for up to 690 V AC.
To comply with the EMC requirements of the CE mark, use one of the preferred cable types.
See
Preferred power cable types (page 41) .
Symmetrical shielded cable reduces electromagnetic emission of the whole drive system
as well as the stress on motor insulation, bearing currents and wear.
Metal conduit reduces electromagnetic emission of the whole drive system.
The protective conductor must always have an adequate conductivity.
Unless local wiring regulations state otherwise, the cross-sectional area of the protective
conductor must agree with the conditions that require automatic disconnection of the supply
required in 411.3.2. of IEC 60364-4-41:2005 and be capable of withstanding the prospective
40 Guidelines for planning the electrical installation