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Chapter 3 Paramters/Functions Innovation Series Medium Voltage GP Type - G Drives GEH-6385
Function description
The Minimum Speed Limit function is part of the Speed Reference Generation
function. It operat es on the speed reference after the Speed Reference Reverse and
before the Critical Speed Avoidance function .
The Minimum Speed Limit function prevents the speed r eference from falling below
a specified magnitude. The minimum speed ma gnitude is defined by par ameter
Minimum speed.
Related diagrams
Speed Reference Gener ation (Ovr_RfSel)
Remote Speed Reference
The Remote Speed Reference forms a speed referen ce signal from the remote source,
which is typically a system level con troller or an adjustable analog input.
Function inputs
The following table specifies the input parameters to the Remote Speed Reference
function.
Parameter Description
Auto analog ref sel Selects the automatic speed reference.
Man analog ref sel Selects the manual speed reference when Manual
speed ref sel is False.
Auto mode select Selects the signal that switches the remote speed
reference between the automatic and manual
references.
The following table specifies the input variables to the Remote Speed Reference
function.
Variable Description
Jog request Sequencer request to jog the drive.
Function configuration
The following table specifies the configuration parameters for the Remote Speed
Reference function.
Parameter Description
Speed setpoint 0 Constant speed that is the manual reference when
Manual speed ref sel is True. RPM
Manual speed ref sel Switches between the selec table and const ant sources
for the manual reference.
Remote jog s peed Jo g speed that becom es the local speed r eference
when Jog request is True. RPM