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Figure 153: Ext Speed Limit (max)
4.7.4.3 Speed Control Source:
The
Speed Control Source
is a selection drop-down to specify the source
of the VFD’s speed control
input. The user can select between
Automatic, Remote,
and
Manual
, shown below in Figure 154. When
the Speed Control Source is set to Automatic (the default value), the controller will use its internal
algorithms based on the system configuration to control the speed of the motor and attempt to maintain
pressure control. When the speed control source is set to Remote, the analog input for Remote Speed
Control will be used to control the speed of the motor between the allowable minimum and maximum
speeds for the current operating point. When the Speed Control Source is set to Manual, the Manual
Speed setting will be used to control the speed of the motor.
Figure 154: Speed Control Source
