Functions, monitoring and protective functions
9.4 Extended functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
609
The technology controller features:
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Two scalable setpoints
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Scalable output signal
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Separate fixed values
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Integrated motorized potentiometer
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The output limits can be activated and deactivated via the ramp-function generator.
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The D component can be switched to the system deviation or actual value channel.
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The motorized potentiometer of the technology controller is only active when the drive
pulses are enabled.
The technology controller is designed as a PID controller, whereby the differentiator can be
switched to the control deviation channel or the actual value channel (factory setting). The P,
I, and D components can be set separately.
A value of 0 deactivates the corresponding component. Setpoints can be specified via two
connector inputs. The setpoints can be scaled via parameters p2255 and p2256.
A ramp-function generator in the setpoint channel can be used to set the setpoint ramp-up/
ramp-down time via parameters p2257 and p2258. The setpoint and actual value channel
each have a smoothing element. The smoothing time can be set via parameters p2261 and
p2265.
The setpoints can be specified via separate fixed setpoints (p2201 to p2215), the motorized
potentiometer, or via the fieldbus (e.g. PROFIBUS, PROFINET).
Pre-control can be integrated via a connector input.
The output can be scaled via parameter p2295 and the control direction reversed. It can be
limited via parameters p2291 and p2292 and interconnected as required via a connector
output (r2294).
The actual value can be integrated, for example, via an analog input on the TM31.
If a PID controller has to be used for control reasons, the D component is switched to the
setpoint/actual value difference (p2263 = 1) unlike in the factory setting. This is always
necessary when the D component is to be effective, even if the reference variable changes.
The D component is only activated if p2274 > 0.
Note
Ramp-up/down time freeze
With the entry "0" sec. as power up time or ramp-down time for the ramp function generator
of the technology controller, the current values of the respective ramp function generator will
be frozen.
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