Hardware Manual

62 Planning the electrical installation
The abbreviations used in the table are defined below.
Additional requirements for explosion-safe (EX) motors
If you will use an explosion-safe (EX) motor, follow the rules in the requirements table
above. In addition, consult the motor manufacturer for any further requirements.
Additional requirements for ABB motors of types other than M2_, M3_, M4_,
HX_ and AM_
Use the selection criteria given for non-ABB motors.
Additional requirements for the braking applications
When the motor brakes the machinery, the intermediate circuit DC voltage of the
drive increases, the effect being similar to increasing the motor supply voltage by up
to 20 percent. Consider this voltage increase when specifying the motor insulation
requirements if the motor will be braking a large part of its operation time.
Example:
Motor insulation requirement for a 400 V AC line voltage application must
be selected as if the drive were supplied with 480 V.
Abbr. Definition
U
N
Nominal AC line voltage
Û
LL
Peak line-to-line voltage at motor terminals which the motor insulation must
withstand
P
N
Motor nominal power
du/dt du/dt filter at the output of the drive. Available from ABB as an optional add-on kit.
CMF Common mode filter. Depending on the drive type, CMF is available from ABB as
an optional add-on kit.
N N-end bearing: insulated motor non-drive end bearing
n.a. Motors of this power range are not available as standard units. Consult the motor
manufacturer.