Specifying Travel Times; Start-Up/Coasting Delay And Minimum Run Time - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Planning and application
4.1.2

Specifying travel times

Alternatively to automatic travel detection, on devices of type JRA/S x.y.5.1, it is possible to use the
manual travel detection method via the application. In so doing, the travel times are measured from the
lower to the upper end position and vice-versa, e.g. using a stopwatch. The measured values are then
entered in the appropriate ETS parameter. This method must be used on devices without travel detection
(JRA/S x.230.2.1 and JRA/S x.230.1.1).
Important
The travel times are used to determine the current position of the blind/shutter during operation. For this
reason, the travel times should be measured and parameterized as accurately as possible or
determined using the automatic travel detection (only for type JRA/S x.y.5.1). For position movements,
automatic control or status messages in particular, precise travel times are the basis for an exact
calculation and positioning of the blind/shutter.
4.1.3

Start-up/coasting delay and minimum run time

Some drives do not provide full output immediately, but only after a starting delay of a few milliseconds.
Other drives continue to run for a few milliseconds (stopping delay) or have a minimum run time. These
parameters must only be entered if you require en even more exact positioning of the blind/shutter.
Important
Usually, the standard settings of these parameters are sufficient for correct operation. If changes are
made to these parameters in the user-defined setting, then the technical data of the appropriate drive
manufacturer must be observed.
112 2CDC 506 051 D0204 | JRA/S