ABB ACH550-01 User Manual page 398

Examples for using the table
Requirements
R1 frame size,
8 kHz swf,
Category C2,
150 m cable
R3 frame size,
4 kHz swf,
Category C3,
300 m cable
R5 frame size,
8 kHz swf,
Category C3,
150 m cable
R6 frame size,
4 kHz swf,
EMC limits not
applicable,
150 m cable
386
Checking and conclusions
Check operational limits for R1 and 8 kHz ->
for a 150 m cable a du/dt filter is needed.
Check EMC limits -> EMC requirements for
Category C2 are met with a 150 m cable.
Check operational limits for R3 and 4 kHz ->
a 300 m cable cannot be used even with a
du/dt filter. A sine filter must be used and the
voltage drop of the cable must be taken into
account in the installation.
Check EMC limits -> EMC requirements for
Category C3 are met with a 300 m cable.
Check operational limits for R5 and 8 kHz ->
for a 150 m cable the basic unit is sufficient.
Check EMC limits -> EMC requirements for
Category C3 cannot be met with a 300 m
cable. The installation configuration is not
possible. An EMC plan is recommended to
overcome the situation.
Check operational limits for R6 and 4 kHz ->
for a 150 m cable the basic unit is sufficient.
EMC limits do not need to be checked as
there are no EMC requirements.
ACH550 User's Manual
Technical data