Wilo XI4-OR Série Notice De Montage page 11

COMMISSIONING
Fig. 3: Electrical connection
4-wire connection cable
1 Flat cable from the motor
Wire colour 1~ 230 V
Black (BK) L
Blue (BU) N
Brown (BN)
Green/yellow
PE
(GNYE)
5.7 Motor protection and activation types
5.7.1 Motor protection
Plan motor protection in the switchgear (acces-
sories to be ordered separately).
Local and statutory regulations must be observed
when connecting the motor/unit.
5.7.2 Activation types
Direct activation
At full load, the motor protection should be set
to the rated current shown on the rating plate. At
partial load, we recommend that the motor pro-
tection be set 5 % above the current measured at
the duty point.
6 Commissioning
The following general conditions must always be
met and checked:
• Installation type, including cooling (does a cooling
jacket have to be installed?)
• Minimum water submersion/max. immersion
depth
These general conditions should also be
checked after a lengthy period of standstill, and
any defects detected must be rectified!
These instructions must always be stored next
to the motor or in a designated location where
they are accessible to all operating personnel at
all times.
In order to prevent damage or serious injury when
commissioning the motor, the following must be
observed:
• Commissioning of the motor may only be per-
formed by qualified and trained personnel in
accordance with the safety instructions.
• All personnel working on or using the motor must
have been provided with this operating and main-
tenance manual and have read and understood it.
• All safety devices and emergency cut-outs must
be connected and checked to ensure that they
work properly.
• Electrical engineering and mechanical adjust-
ments must be carried out by qualified personnel.
• The motor is suitable for use under the specified
operating conditions.
Installation and operating instructions Wilo-XI4-OR-...
3~ 400 V
U
V
W
PE
• The working area of the motor is not a recrea-
tional area and must be kept free of people! No
persons are allowed in the working area during
start-up or operation.
• Make sure a second person is present at all times
when you are working in wells and tanks. If there
is a risk of toxic gases forming, sufficient ventila-
tion must be ensured.
6.1 Electrical system
Connect the motor and install the power supply
cables as described in the "Installation" section
and in accordance with the VDE guidelines and
applicable national regulations.
Check and ensure:
• The motor and the entire unit must always be
properly protected and earthed.
• Observe the direction of rotation! If the direction
of rotation is incorrect, the unit will not perform
as specified and may be damaged.
• Make sure all monitoring devices are connected
and have been tested.
DANGER due to electrical current!
Electrical current can cause fatal injuries if not
handled correctly! All connections must be
made by a qualified electrician!
6.2 Direction of rotation monitoring
The motor is checked and set at the factory to
ensure that the direction of rotation (suitable for
Wilo hydraulics) is correct. The connection must
be made according to the wiring diagram.
Check that the motor rotates in the correct direc-
tion before submersion.
A test run may only be performed under general
operating conditions. Switching on a motor/unit
that is not immersed, is forbidden!
6.2.1 Direction of rotation check
The direction of rotation must be checked with a
rotating field tester by a local electrician. There
must be a clockwise rotating field for the correct
direction of rotation.
The product is not approved for operation with a
counter-clockwise rotating field!
6.2.2 If the direction of rotation is incorrect
If a Wilo switchgear is used
Wilo switchgears are designed so that the
connected products are operated in the correct
direction of rotation.
Switchgears provided by the customer
In the event of incorrect direction of rotation for
direct starting motors, the 2 phases/conductors
of the power supply on mains side to the switch-
gear need to be swapped over.
English
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