Grundfos Control MPC 2000 Series, Installation And Operating Instructions Manual

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English (GB)
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Setting via the operating panel
• Settings > Monitoring functions > Limit 1 exceeded / Limit 2
exceeded > Go to setting of analog input.
1. Select analog input.
2. Select: Input value to be monitored. Display 4.3.8.1.1
appears.
3. Select input.
4. Press [Back].
5. Set the minimum and maximum sensor value.
6. Press [Back] x 2.
7. Select: Input value to be monitored.
8. Select input.
9. Press [Back].
10. Select:
• Min. limit or Max. limit.
• Set delays.
11. Press [Back].
12. Select:
• Set warning limit
• Enabled.
13. Set limit.
14. Select resetting: Manual or Auto.
15. Press [Back].
16. Select:
• Set alarm limit
• Enabled.
17. Set limit.
18. Select resetting: Manual or Auto.
19. Press [Back].
20. Select: Enabled.
Factory setting
The function is disabled.
8.7.65 Pumps outside duty range (4.4.7)
Fig. 116 Pumps outside duty range
Description
The function gives a warning if the duty point of the pumps moves
outside the defined range. For instance, if the inlet pressure
becomes lower than a minimum permissible value, thus causing a
risk of cavitation for some pump types.
The warning is given with a set time delay. You can set whether
the warning is to be reset automatically or manually when the
duty point comes within the defined duty range. You can also set
a relay output to be activated when the warning is given, and to
be deactivated when the warning is reset.
This function requires that the outlet pressure and the inlet
pressure (either measured or configured) or the differential
pressure of the pumps is monitored, and that CU 352 contains
valid pump data from either a GSC file or from manual input. See
section
8.7.43 Pump curve data (4.3.19) .
Setting range
• Setting of manual or automatic resetting.
• Setting of warning delay.
Setting via the operating panel
• Settings > Monitoring functions > Pumps outside duty range >
Manual or Auto > Set warning delay.
Factory setting
The function is disabled.
Analog inputs must be correctly set before the
function is enabled. See section
8.7.30 Analog inputs
(4.3.8) .