ABB ACS 600 MultiDrive, Safety And Product Information

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Safety Instructions
ACS 600 MultiDrive 9
Protecting the Motor
Bearing
To avoid damage occuring to motor bearings, insulated N (non-driven
end) bearings must be used generally with 100 kW and higher motor
powers. In addition, common mode filters from ABB must be used
according to the following table. The common mode filter is composed
of toroidal cores installed onto the motor cable. The cables must be
selected and installed according to the instructions given in the
appropriate
Hardware Manual . The precautions to minimize the risk on
motor bearing damage depend on the motor size and rated power.
Three types of filters are used alone or in combinations:
1. optional ACS 600 du/dt filter (protects motor insulation system and
reduces bearing currents)
2. ACS 600 common mode filter (mainly reduces bearing currents)
3. ACS 600 light common mode filter (mainly reduces bearing
currents).
Requirements Table The following table shows how to select the motor insulation system
and when optional ACS 600 du/dt filters, inslulated N (non-driven end)
motor bearings and ACS 600 common mode filters are required at the
output of the drive. The motor manufacturer should be consulted
regarding the construction of the motor insulation and additional
requirements for explosion-safe motors. Failure of the motor to fulfil the
following requirements may shorten its life or damage the motor
bearings.