Grundfos DDI 222 Montage- Und Betriebsanleitung Seite 41

9.10.5 Error message - broken cable or faulty sensor
If the dosing controller and/or the pressure control function are/is
switched on, the missing signal is recognised and emitted as an
error.
A faulty pressure sensor (broken cable) is displayed as follows:
• The error signal relay switches on.
• The pump is not stopped!
• The LED flashes red.
• "ERROR" flashes in the display.
Manual
2.42
RUN
ERROR*
Fig. 48 Display: "Broken cable"
Correct error
• Press the "Start/Stop" button twice to confirm the error and to
stop the pump.
• Repair the cable break.
Once the error has been corrected,
• press the "Start/Stop" button to restart the pump.
– The pump returns to the state it was in before the error
occurred.
If the cable is broken, the dosing controller and
pressure control/pressure display functions are not
Note active. When the "Menu/Info" button is pressed twice
to display the chamber pressure, only "— — —" is
displayed.
If the sensor fault cannot be corrected immediately
and if the pump is to continue to run without a
Note
sensor, switch off the dosing controller (flow: OFF)
and pressure control function (P:OFF).
9.10.6 Changing the number of permissible error strokes
To change the number of permissible error strokes during the
start-up operation and during normal dosing operation.
Permissible error
strokes during start-up
operation
Number of error
strokes until the error
message is triggered
Fig. 49 Permissible error strokes
1. Open the service level.
2. Repeatedly press the "Menu/Info" button to navigate in the
service level until you reach menu item "St:60" (error stroke
during start-up operation).
– The display shows "St" and the number of currently defined
error strokes that are permissible during the start-up
operation.
3. Use the "Up" and "Down" buttons to set the number of
permissible error strokes during the start-up operation in the
range between 1 and 99.
l/h
Menu
Info
Use the "Up" and "Down" buttons to
set the number of permissible error
Up
St:60
strokes during the start-up operation in
ERROR
the range between 1 and 99.
Down
Stop
Start
Use the "Up" and "Down" buttons to
set the number of error strokes until
Up
FE: 7
the error message is triggered during
normal dosing operation in the range
ERROR
Down
between 3 and 99.
Service level
4. Press the "Start/Stop" button.
– Confirm the setting and go to menu item "FE: 7".
– The display shows "FE" and the number of currently defined
error strokes that are permissible during normal dosing
operation.
5. Use the "Up" and "Down" buttons to set the number of error
strokes until the error message is triggered during normal
dosing operation in the range between 3 and 99.
6. Press the "Start/Stop" button
– to confirm the new settings
– to exit the service level
– to open the first function level.
Stop
Start
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