Grundfos Control MPC-Serie Installationsanleitung Seite 42

8.7.22 Compensation for pump start-up time (4.2.10)
Fig. 62 Compensation for pump start-up time
Description
The function is used for MPC-F systems only.
The purpose is to avoid disturbances when a mains-operated
pump with fixed speed is started. The function compensates for
the time it takes a mains-operated pump to reach its full
performance after start. The startup time of the mains-operated
pump must be known.
Setting via the operating panel
• Settings > Pump cascade control > Compensation for pump
start-up time.
• Set: Pump start-up time
Factory setting
The startup time is set to zero seconds.
42
8.7.23 Secondary functions (4.3)
Fig. 63 Secondary functions
Description
In the display, you can set functions that are secondary in relation
to the normal operation of the system. Secondary functions are
functions that offer additional functionality.
The display allows you to open these specific displays:
• 8.7.24 Stop function (4.3.1)
• 8.7.25 Pilot pump (4.3.2)*
• 8.7.26 Soft pressure build-up (4.3.3)
• 8.7.28 Digital inputs (4.3.7)
• 8.7.30 Analog inputs (4.3.8)
• 8.7.33 Digital outputs (4.3.9)
• 8.7.35 Analog outputs (4.3.10)
• 8.7.37 Counter inputs (4.3.11)
• 8.7.27 Emergency run (4.3.5)
• 8.7.38 Min., max. and user-defined duty (4.3.14)
• 8.7.42 Pilot pump curve data (4.3.18)
• 8.7.43 Pump curve data (4.3.19)
• 8.7.47 Flow estimation (4.3.23)
• 8.7.45 Control source (4.3.20)
• 8.7.46 Fixed inlet pressure (4.3.22)
• 8.7.47 Flow estimation (4.3.23)
• 8.7.48 Reduced operation (4.3.24)
• 8.7.49 Multisensor settings (4.3.25)
*
Pilot pump needs to be activated via PC Tool to be visible in
8.7.23 Secondary functions (4.3) display.