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Alarm / Fault code 187 in allen bradley PowerFlex 755 drive

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Cause : VHz Boost Limit comes when P60 [Start/Acc Boost] and P61 [Run Boost] are greater than P25 [Motor NP Volts] x 0.25 when P65 [VHz Curve] = 0 “Custom V/Hz.” or P61 [Run Boost] is greater than P25 [Motor NP Volts] x 0.25 when P65 [VHz Curve] = 1 “Fan/Pump.”

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