Grundfos CONTROL MPC Installation And Operating Instructions Manual page 50

11.7.44 Dry-running protection with pressure transmitter
(4.4.1.2)
Fig. 89 Dry-running protection with pressure transmitter
Description
Dry-running protection can take place by means of a pressure
transmitter measuring the inlet pressure.
It is possible to set two levels of inlet pressure: Warning and
alarm + stop. In the display, it is possible to set whether restart
and reset of the alarm is to be automatic or manual.
Setting range
• Selection of analog input for the function.
• Activation of the function.
• Inlet pressure level for warning.
• Inlet pressure level for alarm + stop.
• Restart: Manual or automatic.
Setting via control panel
1. Mark the Settings menu with
2. Mark Monitoring functions with
3. Mark Dry-running protection with
.
4. Mark Measurement, inlet pressure with
press .
5. Mark Go to setting of analog input, and press
display Analog inputs (4.3.8) appears. Set the input to Inlet
pressure, and save with
6. Mark Activated with
7. Mark Warning with or
and save with .
8. Mark Alarm + stop with
, and save with .
9. Mark Manual or Auto with
If one of the levels is not required, the level value
must be the minimum value of the inlet pressure
Note
transmitter. This deactivates the function.
Factory setting
The setting is done in the start-up wizard and depends on the
application.
50
.
or , and press
or , and press
or , and
. Now the
. Return with .
or , and press .
. Set the level with
or . Set the level with
or , and save with
11.7.45 Dry-running protection with level transmitter (4.4.1.3)
Fig. 90 Dry-running protection with level transmitter
Description
Dry-running protection can take place by means of a level
transmitter measuring the level in a tank on the suction side.
It is possible to set two levels: Warning and alarm + stop.
In the display, it is possible to set whether restart and reset of
alarms is to be automatic or manual.
Setting range
• Selection of analog input for the function.
• Activation of the function.
• Tank level for warning.
• Tank level for alarm + stop.
• Restart: Manual or automatic.
Setting via control panel
1. Mark the Settings menu with
2. Mark Monitoring functions with
.
3. Mark Dry-running protection with
.
4. Mark Measurement, tank level with
.
5. Mark Go to setting of analog input, and press
display Analog inputs (4.3.8) appears. Set the input to Tank
level, suction side. Return with
6. Mark Activated with
7. Mark Warning with
or ,
and save with
8. Mark Alarm + stop with
or
, and save with
9. Mark Manual or Auto with
.
Factory setting
The function is deactivated.
.
or , and press
or , and press
or
.
or , and press
or . Set the level with
.
or . Set the level with
.
or , and save with
.
, and press
. Now the
.
or ,
or
.