Sauter Components RDT 300 F001, User Manual

Page: 44 / 64

2 - 40 Description of parameters
7000928003 R4
Sauter Components
ST
Start value for the flow temperature when the ETF is on
Access: Manual
Start value for the setpoint for the flow temperature, after the ETF has been activated.
TI Period of time for the averaged outdoor temperature
Access: Manual, automatic
Period used for the calculation of the averaged outdoor temperature.
TF.
Time filter (filter time constant)
Access: Service level
Filter time constant for measuring input. The range is 0 (off) to 255 seconds. The filter represents a mathematically approxi-
mated delay of the first degree. For fast controlled networks, it is important not to set the filter time constant too large. The
delay causes an additional phase shift in the control loop, which can lead to hunting.
This function is intended (for example) for use in room-pressure control for arresting pressure surges. Do not use for attenuating
fluctuating measured values, caused by disturbance, etc. In this case, the source of the interference should be attenuated directly.
Tn.
Integral action time (reset time) (standardised term)
Access: Manual
When Tn = 0, the I component is switched off; the controller then has a purely P characteristic.
Ver Version
Access: Manual, service level
The software version is shown. This is needed when making technical enquiries.
W. / Shift (W)
Access: Service level
The command module's control action. The command module has a shift effect on the active setpoint. In conjunction with the
parameters FP and F1 (with preceding mathematical signs), a shift is possible in all 4 quadrants.