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Each individual case should be
checked ascertain hether mains choke needs to
be installed.
EMC standards such 55011, 61000-6-3/4,
apply industrial and household equipments and
systems including drive com ponent inside.2009.
The emission limits are com parable according the
following table, EMC standards.Options
External
Mains choke
The ACSM1 drive does not necessarily need mains
choke for operation.
Mains filters are available eet category level
with the ACSM1 drive installation, including motor
with max. Mains chokes are typically used to:
■ reduce harmonics the mains current
■ achieve reduction the r. Drive units
complying with requirements 61800-3 are always
complient with com parable categories 55011
and 61000-6-3/4, but not necessarily vice versa. mains current
■ reduce mains disturbance and low-frequency inter
ference
■ increase the allowed bus continuous pow er
EMC standards general
EN 61800-3/A11 61800-3 (2004), 55011, product
(2000), product product standard fam ily standard
standard for industrial,
scientific and
m edical (ISM)
equipm ent
1st environment, Category Group 1
unrestricted distribution Class B
1st environment, Category Group 1
restricted distribution Class A
2 environment, Category Group 2
unrestricted distribution Class A
2 environment,
restricted distribution
Category Not applicable
A mains choke series available eet different
system design needs.
Mains filter (EMC)
The EMC product standard (EN 61800-3 Amendment
A11 (2000)) covers the specific EMC requirements stated
for drives (tested with otor and cable) within the EU.s.
EN 55011 and 61000-6-3/4 not specify cable
length nor require otor connected load.3. selection resistors is
available for different kinds pulse duty performance. cable.
All braking resistors are equipped with thermal sensor
as standard.
ABB 3AFE68675073 REV 19. This level corresponds the
A limits for Group equipm ent according 55011.
Braking resistors
Depending the application, external braking
resistor may needed convert the kinetic energy
generated into thermal energy.m
