ABB ACS850-04 series, Hardware Manual

Page: 52 / 164

Planning the electrical installation
52
* manufactured before 1.1.1998
** For motors manufactured before 1.1.1998, check for additional instructions with the motor
manufacturer.
*** If the intermediate DC circuit voltage of the drive is increased from the nominal level by resistor
braking, check with the motor manufacturer if additional output filters are needed in the applied drive
operation range.
The abbreviations are defined below.
N
O
N
-
A
B
B Random-
wound and
form-wound U
N
< 420 V Standard: Û
LL
=
1300 V
- + N or CMF + N + CMF
420 V < U
N
< 500 V Standard: Û
LL
= 1300
V
+ d u /d t + d u /d t + N + d u /d t + N + CMF
or
+ d u /d t + CMF
or
Reinforced: Û
LL
=
1600 V, 0.2
microsecond rise time
- + N or CMF + N + CMF
500 V < U
N
< 600 V Reinforced: Û
LL
=
1600 V
+ d u /d t + d u /d t t + N + d u /d t + N + CMF
or
+ d u /d t + CMF
or
Reinforced: Û
LL
=
1800 V
- + N or CMF + N + CMF
600 V < U
N
< 690 V Reinforced: Û
LL
=
1800 V
+ d u /d t + d u /d t + N + d u /d t + N + CMF
Reinforced: Û
LL
=
2000 V, 0.3
microsecond rise time
***
- N + CMF N + CMF
Abbreviation Definition
U
N
Nominal voltage of the supply network
Û
LL
Peak line-to-line voltage at motor terminals which the motor insulation must
withstand
P
N
Motor nominal power
d u /d t d u /d t filter at the output of the drive
CMF Common mode E208
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.
M
a
nuf
ac
tu
re
r
Motor type Nominal mains
voltage (AC line
voltage)
Requirement for
Motor insulation
system
ABB du/dt filter, insulated N-end bearing and ABB common mode
filter
P
N
< 100 kW
and
frame size < IEC 315
100 kW < P
N
< 350 kW
or
frame size > IEC 315
P
N
> 350 kW
or
frame size > IEC 400
P
N
< 134 hp
and
frame size <
NEMA 500
134 hp < P
N
< 469 hp
or
frame size >
NEMA 500
P
N
> 469 hp
or
frame size >
NEMA 580