Speed Configurations (Speed Config); Speed Setpoint Block And Speed Ratio Block (Speed Setpoint & Speed Ratio) - GE AV-300i User Manual

1.8 SPEED CONFIGURATIONS (SPEED CONFIG)

1.8.1 Speed Setpoint Block and Speed Ratio Block (Speed Setpoint & Speed Ratio)
The Function of the speed Setpoint block is to generate the Setpoint for the speed regulation Block. The speed Setpoint
is obtained by algebraically adding on the input the references Speed ref 1 and Speed ref 2, the Ramp Block output
Ramp output and the Jog Block output, Jog output. A Setpoint is a Reference.
On the input the Block allows to connect the following sources:
Speed ref 1 src and Speed ref 2 src allow to select the origin of the speed references. In a standard condition
such sources are connected to Int speed ref 1 and Int speed ref 2, which can be set in the Block configurations.
Speed ref inv src allows to invert the whole output Setpoint. A multiplier determines the output state according
to the state of the connected signal.
N !
OTE
Ramp ref 2 mon must be zero for the drive to stop without opening the enable input.
The Speed Ratio function is implemented on the Block. With such function, given a line reference on several
Drives, it is possible to regulate the percentage (%) of the local speed reference as compared to the line.
The Function adds to its inputs the Ramp Block output, Ramp output, with the Speed ref 1 reference. The sum
is multiplied by the Speed ratio. The resulting value is referred as Speed Draw (in rpm).
Speed ratio src allows to select the origin of the signals stating the speed ratio, for example the Int speed ratio
with a % value is standard connected and can be configured in the Ratio Block.
In the Block configurations, furthermore, together with the already mentioned references, it is also possible to configure
the Speed top and the Speed bottom. They state the speed upper and lower limit. Their value is given in rpm.
On the output it is possible to monitor some input signals and the Block outputs: the Speed setpoint reference, the
Speed draw output and the Speed limit state, which determines the reaching of the set speed limit.
The inputs of this Block are:
The outputs:
The Function of the Speed Ratio Block allows to set the Speed Ratio.
The Block source, Speed ratio src, is the same as the one present in the Speed Setpoint Block.
int speed ratio with a % value is standard connected, but, anyway, also the connection of analog and digital
signals is possible.
The Speed ratio cfg configuration menu allows to configure the Int speed ratio parameter.
Its default value is 100%, corresponding to the multiplicative factor 1.
The Block input:
Ch.1
90
GEH-6641E
· Speed Ref 1 src
· Speed Ref 2 src
· Speed ref inv src
· Speed ratio src
· Ramp out mon
· Jog output
· Speed setpoint
· Speed draw out
· Speed lim state
· Speed ratio src
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