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8 Commissioning
WARNING! Risk of fatal injury!
Commissioning by qualified personnel only!
Improper commissioning poses a
risk of fatal injury. Have commissioning per-
formed by qualified personnel only.
DANGER! Risk of fatal injury!
When working on the open switchgear, there is
a danger of electric shock from touching the live
components.
This work may only be carried out by qualified
personnel!
We recommend that the commissioning of the
switchgear is performed by Wilo customer service.
Before switching on for the first time, the onsite
wiring must be checked, in particular the earthing.
Tighten all connection terminals prior to com-
missioning!
In addition to the activities described in these
installation and operating instructions, it is neces-
sary to perform the commissioning measures in
accordance with the installation and operating
instructions of the overall system (DEA).
8.1 Factory setting
The control system is preset in the factory.
The factory settings can be restored by Wilo
customer service.
8.2 Checking the motor direction of rotation
By briefly switching on each pump in "Manual
mode" operating mode (menu 3.2.1.1, 3.2.2.1,
3.2.3.1 and 3.2.4.1), check whether the direction
of rotation of the pump in mains operation corre-
sponds to the arrow on the pump housing.
If the direction of rotation of all pumps in mains
operation is wrong, swap over any 2 phases of the
main mains cable.
SC switchgear without frequency converter:
• If the direction of rotation of only one pump in
mains operation is wrong, swap over any 2 phases
on motors in direct starting (DOL) in the motor
terminal box.
• If the direction of rotation of only one pump in
mains operation is wrong, swap over 4 connec-
tions on motors in star-delta starting (SD) in the
motor terminal box. In this case, swap the winding
start and winding end of 2 phases (e.g. V
and W
for W
).
1
2
72
SC switchgear with frequency converter (FC):
• Mains operation: see above (SC switchgear with-
out frequency converter)
• Frequency converter operation: set all pumps to
the "Off" operating mode (menu 3.2.1.1, 3.2.2.1,
3.2.3.1 and 3.2.4.1) and then set each pump indi-
vidually to "Automatic". Briefly switch on the indi-
vidual pump to check the direction of rotation in
frequency converter operation. If the direction
of rotation of all pumps is wrong, swap over any
2 phases on the frequency converter output.
8.3 Adjusting the motor protection
• WSK / PTC: No setting is required on the overtem-
perature protection.
• Excess current: see section 6.2.2
8.4 Signal transmitters and optional modules
Comply with the installation and operating
instructions of signal transmitters and optional
additional modules.
9 Maintenance
Only have maintenance and repair work carried
out by qualified personnel!
DANGER! Risk of fatal injury!
Deadly electric shock may occur when working
on electrical equipment.
• The switchgear should be electrically isolated
and secured against unauthorised switch-on
during any maintenance or repair work.
• Any damage to the connecting cable should
always be rectified by a qualified electrician
only.
• The switch cabinet must be kept clean.
• Clean the switch cabinet and fan if they are con-
taminated. The filter mats in the fans must be
checked, cleaned and renewed if necessary.
• If the motor power is 5.5 kW or more, check the
contactors for burn-out from time to time, and
renew them if there is significant burn-out.
for V
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2
WILO SE 01/2013
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