Phase Failure - Wilo MVI 2..-6 Betriebsanleitung

8.2 History memory for faults
A history memory is set up for the entire installation which operates
according to the FI-FO-principle (first in first out). Each fault is stored
encoded with the date and time according to the type of fault.
The memory is able to accommodate 35 faults. An identical fault
which re-ocurrs and is then acknowledged takes up a free memory
location in each case. The history memory can be deleted in the
service menu. The status of the faults currently stored is shown in
extra menu windows. The faults can only be acknowledged in their
Table II, Fault signals
The faults are automatically displayed in menu 7.01
Code Text message
00 >––––––#< no fault
01 >WSK–P1#< WSK pump 1 initiated
02 >WSK–P2#< WSK pump 2 initiated
03 >WSK–P3#< WSK pump 3 initiated
04 >WSK–P4#< WSK pump 4 initiated
05 >WSK–P5#< WSK pump 5 initiated
06 >WSK–P6#< WSK pump 6 initiated
07 >TSA–P1#< TSA pump 1 initiated
08 >TSA–P2#< TSA pump 2 initiated
09 >TSA–P3#< TSA pump 3 initiated
10 >TSA–P4#< TSA pump 4 initiated
11 >TSA–P5#< TSA pump 5 initiated
12 >TSA–P6#< TSA pump 6 initiated
13 >ESA–P1#< ESA pump 1 initiated
14 >ESA–P2#< ESA pump 2 initiated
15 >ESA–P3#< ESA pump 3 initiated
16 >ESA–P4#< ESA pump 4 initiated
17 >ESA–P5#< ESA pump 5 initiated
18 >ESA–P6#< ESA pump 6 initiated
19 >FuS–P1#< FC-fault pump 1 (overload)
20 >FuS–P2#< FC-fault pump 2 (overload)
21 >FuS–P3#< FC-fault pump 3 (overload)
22 >FuS–P4#< FC-fault pump 4 (overload)
23 >FuS–P5#< FC-fault pump 5 (overload)
24 >FuS–P6#< FC-fault pump 6 (overload)
25 ># # ######< CAN - BUS fault
30 >#######< Sensor 1-fault with stoppage*
31 >#######< Sensor 1-fault without stoppage*
32 >#######< Analog 1-fault with stoppage*
33 >#######< Analog 1-fault without stoppage*
* (limit 2 mA / 1 V)
34 >#######< "Lack of water" initiated
corresponding display window.
Table II contains a list of all fault signals.
FC faults must be acknowledged manually.

8.3 Phase failure

If the control phase fails the contactor coils are automatically released
and the entire installation is shut down.
If one of the other two phases fails the pumps are running with an
unbalanced load and than shut down by overcurrent.
Plain text Rectification of fault
Check drives for overload and blockage
Check unit settings,
uneven current consumption,
check drives for overload and blockage
Check unit settings,
uneven current consumption,
check drives for overload and blockage
Check pump drives,
check setting in FC menu,
check setting in overload recognition menu
Call Wilo-Service
Check DG/DDG for function
Check DG/DDG for function
Check ext. Set-point-/bulk current sensor for function
Rectify cause of lack of water
ENGLISH
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