lnstallation
Cables
according
to the data
plate
and
if applicable the cable chart-
The
starting
current in
direct-on-line
start can be up
to
six
times higher than the
rated current.
o
The fuse rating and
the cables
must
be
in accordance with
the local rules and
regulations.
.
lf intermittent operation
is
prescribed,
then
the
pump must
be
Provided
with
monitoring equipment
supportlng such operation.
.
lf
stated
on the data
plate,
then the motor
is
convertible
between different
voltages.
.
The thermal contacts/thermistors
must bre
in
use.
.
For FM-approved
pumps,
a
leakage
sensor
must be connected and
in use in orderto
meet approval
requ
irements.
These are the requirements
to follow when
you install
cables:
.
The cables must be
in good condition,
not have
any
sharp bends, and
not be pinched.
o
The sheathing
must not
be
damaged and must
not have indentations or be embossed
(with
markings, etc.) at
the cable entry.
o
The cable entry
seal sleeve and
washers must conform to
the outside diameter of the
ca ble.
r
The minimum bending
radius must not be below
the accepted
value.
.
lf using a cable
which has been used be{ore, a short
piece must be peeled off when
refitting
it
so that
the cable entry seal sleeve does
not close arou
nd the cable at the
same
point
again.
lfthe outer sheath oithe
cable
is
damaged,
then replace the cable.
Contact a
local sales and service
representative.
.
The voltage
drop
in long
cables
must
be
taken into account.
The drive unit's
rated
voltage is the voltage
measured at the cable connection
point
in the
pumP.
.
The screened cable
must be used according to the
European CE
requirements i{ a
Variable Frequency
Drive
(VFD)
is
used.
For more information, contact
your
local sales
and service
representative
(VFD-supplier).
o
Make sure that the cable
is long enough for maintenance
work.
.
For SUBCAB- cables,
the twisted
pair
copper
foil must be
trimmed.
Grounding
(earthing)
Grounding
(earthing)
must be done
in
compliance
with all
localcodes and regulations.
DANGER: Electrical
Hazard
All elearical equipment
must be
grounded
(earthed).
Testthe ground
(earth)
lead to
veri{y that it is
connected
correctly.
Frequently inspect electrical
systems to ensure
that the
path
to
ground is
continuous.
WARNING: Electrical
Hazard
lf the motor cable
is
.jerked
loose by mistake, then
the ground
(earth)
conductor
should be
the last conductor to come
loose
from its
terminal.
Make sure that the
ground
(earth)
conductor
is longer than the
phase
conductors.
This applies
to
both
ends o{ the
motor
cable.
WARNING: Electrical Hazard
Risk of electrical shock
or burn.
You must
connect
an additional
ground-
(earth-)
fault
protection
device to
the
grounded
(earthed)
connectors
if
persons are likely to come
into
contact
with liquids that are also
in contact with the
pump or
pumped
liquid.
Prepare the SUBCAB* cables
This section applies to SUBCAB-
cables with twisted'pair
control cores.
22
Flygt
3171
lnstallation, Operation,
and lMaintenance Manual
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