McQuay MWH Manual de Serviço descarregar pdf (Página 31)

OM 1191 31

Parameters

Group 26: Motor Control

Thisgroupdenesvariablesusedformotorcontrol.

Table 15: Group 26: Motor Control

Code Description Range Resolution Default S

2605 U/f RATIO 1, 2 1

(SQUARED)

Selects the form for the U/f (voltage to frequency) ratio below eld weakening point.

1 = LINEAR – Preferred for constant torque applications.

2 = SQUARED – Preferred for centrifugal pump and fan applications. (SQUARED is more silent for most operating frequencies.)

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McQuay MWH Manual de Serviço Página 31