SRS Labs CTC100, Руководство пользователя

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Operation 71
CTC100 Programmable Temperature Controller
L a g
Channel .Tune.Lag 0.0
Controls how long the autotuner waits before it first checks the response of the system to the
output disturbance. This time should be long enough for the temperature to rise noticeably after
the output is increased by Step Y. If Lag is too small, the autotuner will mistake small noise spikes
autotuner will produce inaccurate results.
Changes to the Lag setting affect any autotuning algorithms that are currently in
progress.
S ta tus
Channel .Tune.Status?
Touch this button to view the progress of the autotuner.
T ype
Channel .Tune.Type { Cons, Moderate, Aggr, Auto }
Controls the PID tuning rules used by the auto-tuner.
Cons (conservative): results in minimal overshoot (ideally, zero overshoot) but very slow
response.
Aggr (aggressive): results in much faster feedback response but typically ~25% overshoot.
Moderate: provides intermediate results.
Auto: uses the conservative setting for step response tuning and aggressive for relay tuning.
Works well if the step response tuner is used for an initial rough tuning at room temperature and
the relay tuner is used for a final tuning once the system has reached its target temperature.
Regardless of the tuning type, the relay tuner always tunes more aggressively than the step
response tuner. 36 for more
information.
Setup screen for analog I/O and digital I/O channels
he general-purpose analog and digital I/O channels have
the same front-panel settings as either the sensor input or the heater output channels. These
settings have been described above.
The general- -in sensor calibration curves, but they do accept
custom calibration tables.
IO type
Channel .IOType { Input, "Set out", "Meas out" }
The analog and digital I/O channels can be inputs or outputs. Two output types are available: if
is measured and the measured value is reported.
PID feedback functionality is only available if the channel is an output, while alarm and
calibration functions are only available if the channel is an input.
P ola rity
Channel .Polarity { 0, 1 }
This setting only applies to the Relays channel on the digital I/O card. Changing the polarity
reverses the state of all four relays.
The Polarity setting ensures that the relays are in an acceptable state when the CTC100 is
switched off. When the Polarity
switched off. When the