What can you do with a ATS48 soft start to limit water hammer on a pump?

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Issue:

ATS48 soft start getting water hammer on their pump.

Product Line:

ATS48

Environment:

Water Hammer

Cause:

n/a

Resolution:

Suggest to go to the SET menu and set Sty to d (decel). Factory default is set to F (freewheel). The soft stopping by motor torque. The soft start applies torque to the motor in order to decelerate progressively on the dec ramp, avoiding a rapid stop. This type of stop reduces the risk of water hammer on a pump.

Can scroll down to dec and set to around 15-20. Could increase further, if needed.

Could try turning the CLP (drc menu) to off.