Maintenance - Wilo -MVISE-2G Betriebsanleitung

7.1.4 Programming option
Reduction of the maximum frequency
It is possible to reduce the maximum allowable
frequency of the pump thanks to the encoder.
This option must be used for special liquid being
able to generate an overload of the pump.
Option OP
• Set the switch (fig. 4 - item S)on position SERVI-
CE.
• According to the chosen mode, "MI or "M2" or
"M3" appears.
• Select "OP" thank to encoder.
• "OP" appears.
• Validate.
• Select "ON or "OFF".
(the information which is blinking is the one vali-
dated)
• Validate.
• Set the switch back on positon "OPERATION".
IF Module (InterFace)
The communication between the pumps and the
Building Management System (BMS) is possible
with :
• An IF-modul-PLR for a PLR network
• An IF-modul-LON for a LONWORKS network
The IF modul is connected directly inside the
connection area of the converter (Fig. 7).
For further information, contact the WILO custo-
mer department.
WILO AG 06/2008
ON
SERVICE
1 2
Mode
display
Option
display
1s
Option
OFF/OFF
0,1s
ON
OPERATION
1 2

8. Maintenance

CAUTION ! Before carrying out any maintenance
work, switch off the pump and ensure that it
cannot be switched on again by unauthorised
people.
Never carry out work on a running pump.
• No special maintenance in operation.
• Keep the pump and the motor-converter per-
fectly clean.
• In frosty weather and for prolonged stoppages
of the pump, it is recommended to drain, in
order to avoid its deterioration.
English
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