ABB ACS560 Firmware Manual page 137

General purpose drives

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Control macros 137

SPFC system supports autochange naturally as the drive starts all the pump.

Autochange functionality in SPFC is similar to autochange function in PFC except

that autochange with auxiliary motor is not applicable for SPFC. See section

In autochange, two pumps meet the flow consumption for long term running and the

3rd pump is reserved for shifting.

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