Requirements Table - ABB ACS 800-17 Hardware Manual

To avoid damage to motor bearings, insulated N-end (non-driven end) bearings and
output filters from ABB must be used according to the following table. In addition, the
cables must be selected and installed according to the instructions given in this
manual. Three types of filters are used individually or in combinations:
• optional du/dt limitation (protects motor insulation system and reduces bearing
currents).
• common mode filter (mainly reduces bearing currents)
• light common mode filter (mainly reduces bearing currents).
The common mode filter is composed of toroidal cores installed onto the output
busbars inside the drive at the factory.

Requirements table

The following table shows how to select the motor insulation system and when optional ABB du/dt
limitation, insulated N-end (non-driven end) motor bearings and ABB common mode filters are
required. The motor manufacturer should be consulted regarding the construction of the motor
insulation and additional requirements for explosion-safe (EX) motors. Failure of the motor to fulfil the
following requirements or improper installation may shorten motor life or damage the motor bearings.
Motor type Nominal mains
voltage (AC line
A Random- U < 500 V
N
wound M2_
B
500 V < U
and M3_
B
600 V < U
Form-wound 380 V < U
HXR and AM_
Old* form- 380 V < U
wound HX_
and modular
Random- 380 V < U
wound HXR
and AM_
Motor insulation
voltage)
system
Standard
< 600 V Standard
N
or
Reinforced
< 690 V Reinforced
N
< 690 V Standard
N
< 690 V Check with the
N
motor
manufacturer.
< 690 V Check with the
N
motor
manufacturer.
Requirement for
ABB du/dt limitation, insulated N-end bearing and ABB common
P < 100 kW 100 kW < P
N
and
frame size > IEC 315
frame size < IEC 315
P < 134 HP 134 HP < P
N
and frame size <
NEMA 500
- + N
+ du/dt + du/dt + N
- + N
+ du/dt + du/dt + N
n.a. + N + CMF
+ du/dt limitation with voltages over 500 V + N + CMF
+ du/dt limitation with voltages over 500 V + N + CMF
mode filter
< 350 kW P
N N
or
frame size > IEC 400
< 469 HP P
N N
or frame size >
NEMA 500
+ N + CMF
+ du/dt + N + LCMF
+ N + CMF
+ du/dt + N + LCMF
+ N + CMF
Planning the electrical installation
45
> 350 kW
or
> 469 HP