Lenze 4800 - Additional Function Blocks

Configuration
7-67
48XX/49XXSHB0399
7.5 Additional function blocks
7.5.1 Process controller
Description
The process controller is designed as independent function block and is a PID
controller with a cycle time of 12 ms.
It can for instance be used as superimposed controller (dancer position control,
tension control, etc.).
4900Str053
Set
Act.
Output
Evaluation
I-c o m p o n e n t
sw itch-off
D eactivation
process controller
Suppression
process controlle
r
FIG 7-26 Process controller
Features
( P adaptation possible via an internal function (derived from set-value) or
external analog signal source; enable adaptation with C329 = -1-
( Ramp function generator in set-value channel
( Overlay of process controller output over ramp function generator
( Intregral action component to be switched-off via freely assignable digital
terminal (I component = 0)
( Deactivation of the process controller via freely assignable digitale terminal (I
component = 0, output = 0)
( Suppression of the process controller output via freely assignable digital
terminal (output = 0 after time C335)
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