System Manual V2 – MOVITRAC® B
159
8
Installation notes
Installation
8.1.5
EMC-compliant installation
•
All cables except for the supply system lead must be
shielded
. For the motor cable,
you can use the HD.. option (output choke) instead of the shielding to meet the
interference emission limit values.
•
When using shielded motor cables, e.g. prefabricated motor cables from SEW-
EURODRIVE, you must keep the
unshielded conductors between the shield and
connection terminal of the inverter as short as possible
.
•
Apply the
shield by the shortest possible route and make sure it is grounded
over a wide area at both ends
. If using double-shielded cables, ground the outer
shield on the inverter end and the inner shield at the other end.
•
You can also use
earthed sheet-metal ducts or metal pipes
to
shield the cables
.
Route
the
power and control cables
separately
.
•
Provide
high frequency compatible grounding
for the
inverter
and
all additional
units
(wide area metal-on-metal contact between the unit housing and ground, e.g.
unpainted control cabinet mounting panel).
8.1.6
IT systems
•
SEW recommends using
earth-leakage monitors with a pulse code measuring
process in voltage supply systems with a non-earthed star point (IT systems)
.
Use of such devices prevents the earth-leakage monitor mis-tripping due to the earth
capacitance of the inverter.
•
For size 0, SEW recommends deactivating the interference suppressor filter using
the enclosed insulation discs (see Deactivating EMC capacitors (size 0 only) (see
page 174)).
8.1.7
Contactor
•
Only use contactors in utilization category AC-3 (EN 60947-4-1).
8.1.8
Cross sections
•
Supply system lead:
Cross section according to rated input current
I
mains
at rated
load.
Motor lead:
Cross section according to rated output current
I
N
Electronics cables: Maximum 1.5 mm
2
(AWG16) without conductor end sleeves
1)
Maximum 1.0 mm
2
(AWG17) with conductor end sleeves
1) Fine wired cables may not be installed without conductor end sleeves.
Содержание MOVITRAC MC07B0037-2A3-4-00
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