Grundfos Multilift MOG Manual Del Usuario página 18

6.4 Description of fault indications
If a fault occurs, the symbol
the 14-segment characters in the display. To see the kind of fault, if it is automatically reset and the code is not longer visible, open the
fault log (see fig. 16). When you leave the fault log, the symbol
The last 20 faults are stored in the fault log as fault codes. The meaning of the fault codes are described in the table below:
Fault
Meaning
code
Phase sequence
F001
failure
One phase
F002
missing
F003 High liquid level
F004 Sensor failure
Overtemperature,
F005
pump 1
Overtemperature,
F006
pump 2
Overcurrent,
F007
pump 1
Overcurrent,
F008
pump 2
Operating time
F011
exceeded, pump 1
Operating time
F012
exceeded, pump 2
F013 External fault
F014 Battery failure
Relay or contactor
F015 does not open,
pump 1
Relay or contactor
F016 does not close,
pump 1
Relay or contactor
F017 does not open,
pump 2
Relay or contactor
F018 does not close,
pump 2
F019
Communication
fault
F117
18
will be visible, an audible alarm will be given by the buzzer and the fault code will be written by means of
Reset of fault
Displayed Flashing
text symbols
Auto
F001
F002
F003
SENSOR -
TEMP
TEMP
F007
F008
F011
F012
EXT -
BAT -
RELAY
RELAY
RELAY
RELAY
The display
is off.
F117
will disappear.
indications
Description
Man
(Only three-phase pumps)
● The phase sequence between control board and power
supply is wrong. See fig. 17.
(Only three-phase pumps)
● ●
One phase is missing.
● ● The liquid level is high in relation to preset value.
● ● Sensor signal out of range or lost.
Motor thermal switches connected to the controller will
● ●
stop pump 1 in case of overheating.
Motor thermal switches connected to the controller will
● ●
stop pump 2 in case of overheating.
Pump 1 is stopped if an overcurrent is measured for a
●
certain period of time (blockage protection).
Pump 2 is stopped, if an overcurrent is measured for a
●
certain period of time (blockage protection).
The pump has run for more than the allowed operating
● ●
time, and the controller has stopped the pump for a
defined 2cool-down period in order to prevent
overheating. The operating time and cool-down period
depend on the pump. See the duty type on the nameplate.
Check that the outlet valve is open.
Check that the non-return valve is functioning. A leaky
● ●
non-return valve can allow liquid in the outlet pipe to flow
back into the tank.
Remove any blockage from the vent hose at the pump
outlet.
An external level switch can be connected to the
controller to give an alarm if basement outside the lifting
●
station is flooded by groundwater or water from burst
water pipe.
● ● The battery is empty and must be replaced.
Pump 1 receives a signal to stop, but does not react. This
●
situation is detected by current measurement.
Pump 1 receives a signal to start, but does not react. This
situation is detected by current measurement.
Pump 2 receives a signal to stop, but does not react. This
●
situation is detected by current measurement.
Pump 2 receives a signal to start, but does not react. This
situation is detected by current measurement.
Communication fault between the main board and the
display. As the display is off, you can only see the fault
●
code via PC Tool. Check the ethernet cable between the
main board and the display.
Communication fault between the main board and the
display. The display is on and shows the fault code F117.
●
Check the ethernet cable between the main board and the
display.