Additional Requirements For Explosion-Safe (Ex) Motors; And Am; Additional Requirements For The Braking Applications; Additional Requirements For Abb High-Output And Ip23 Motors - ABB ACS800-U7 Hardware Manual

42

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.

Additional requirements for ABB high-output and IP23 motors

The rated output power of high output motors is higher than what is stated for the
particular frame size in EN 50347:2001. This table shows the requirements for ABB
random-wound motor series (for example, M3AA, M3AP and M3BP).
Nominal mains
voltage (AC line
voltage)
U < 500 V
N
500 V < U
N
600 V < U
N
Planning the electrical installation
Motor insulation
system
Standard
< 600 V Standard
or
Reinforced
< 690 V Reinforced
Requirement for
ABB du/dt and common mode filters, insulated N-end motor
P < 100 kW 100 kW < P
N
P < 140 hp 140 hp < P
N
- + N
+ du/dt + du/dt + N
- + N
+ du/dt + du/dt + N
bearings
< 200 kW P
N N
< 268 hp P
N N
+ N + CMF
+ du/dt + N + CMF
+ N + CMF
+ du/dt + N + CMF
> 200 kW
> 268 hp