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4.7.3.6 Star Delta Time:
The
Star Delta Time
setting defines the amount of time the main motor will run in the wye phase before
transitioning to the delta connection. This value should be set to an appropriate value for the compressor
by default but may be adjusted, if needed. The time should be set to a sufficient value to allow the main
motor to accelerate to full speed before transitioning to delta. Figure 150 show the setting of
Star Delta
Time
to
5 Seconds
.
Figure 150: Star Delta Time
4.7.4 Control
– Variable Speed:
The
Control
– Variable Speed
settings are related to the operation of the variable frequency drive on
compressor packages that have a VFD. Figure 151 below shows the home screen for
Control
– Variable
Speed
settings under the advanced settings menu. These are the settings in the
Variable Speed
tab and
this tab will only show on certain machine configurations.
Figure 151: Control - Variable Speed