Fixed Set-Value - Lenze 4800 Manual

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Configuration
7.5.4

Fixed set-value

Purpose
The function block "fixed set-values" is used to program a maximum of 15 fixed
setpoints and to call them via digital terminals or control codes.
These fixed setpoints can be used e.g. for:
( Different dancer set positions when a dancer position control is used or
( Different stretch conditions (gearbox factor) when a speed ratio control with
digital frequency coupling is used.
Function
"Fixed set-values" are independent function blocks. Their outputs can be used as
set-value source for other function blocks (e.g. process controller, arithmetic
block, ...). The parameter setting is the same as for the JOG values. The function
block provides another freely assignable analog input (FAI), which is assigned to
the output if none of the 15 fixed set-values is selected via C194 or the control word
includes a 0.
4900Str060
FIG 7-33 Fixed set-values
Parameter setting of the fixed setpoints
Similar to the JOG values, the parameters are set via 2 codes.
( Select the fixed set-value to be parameterised under C192
( Change or set the value under C193
The fixed set-values are selected and parameterised via the keypad or the LECOM
interface.
Output of the selected fixed setpoint
The output of the fixed set-values depends on the parameter under C194, the
control word. Via this code always a on fixed set-value is assigned to the output.
This code is controlled via keypad, LECOM or freely assignable digital inputs
(operating mode C001). The function block output is assigned under codes
C145/C146.
Normalisation
The values for the fixed set-value range between -100% and +100%.
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