Grundfos Control MPC-Serie Installationsanleitung Seite 47

8.7.27 Emergency run (4.3.5)
Fig. 75 Emergency run
Description
The function is used in booster applications. When this function
has been enabled, the pumps will keep running regardless of
warnings or alarms. The pumps will run according to a setpoint
set specifically for this function.
In case of sensor fault, both main and standby
pumps will run at 100 % speed.
Setting range
• Setting of digital input (8.7.28 Digital inputs
• Setting of digital output (8.7.33 Digital outputs
• Setting of setpoint for emergency run.
Setting via the operating panel
• Settings > Secondary functions > Emergency run > Go to
setting of digital input.
1. Select digital input.
2. Select: Emergency run.
3. Press [Back] x 2.
4. Select: Go to setting of digital output.
5. Select digital output.
6. Select: Emergency run.
7. Press [Back] x 2.
8. Set: Setpoint, emergency run.
When you have set this function described above,
you can also enable it via the display
operating mode (2.1.1).
8.7.28 Digital inputs (4.3.7)
Fig. 76 Digital inputs
Description
In the menu, you can set the digital inputs of CU 352. Each input,
except DI1, can be activated and related to a certain function.
As standard, the system has three digital inputs. If the system
incorporates an IO 351B module (option), the number of digital
inputs is 12.
All digital inputs are shown so that their physical position in the
system can be identified.
Example
DI1 (IO 351-41), [10]:
(4.3.7)).
DI1:
(4.3.9)).
(IO 351-41):
[10]:
For further information on the connection of various digital inputs,
see the wiring diagram supplied with the control cabinet.
Setting range
Setting via the operating panel
• Settings > Secondary functions > Digital inputs.
8.5.2 System
Digital input No 1
IO 351, GENIbus number 41
Terminal No 10
DI1 (CU 352) cannot be selected.
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