Slat Rotation Time

The Slat rotation time is the time during which the slat performs a complete movement from 0% to 100% (or vice versa). The adjustment range for the opening angle is dependent on the type of blind used. Setting the Blind Type (for Blind only)

	Blind type: Downwards closed / upwards horizontal	Blind type: Downwards tilted / upwards horizontal	Blind type: Downwards closed / upwards closed	Blind type: Downwards tilted / upwards closed
Slat position 0 %	Horizontal open	Horizontal open	Top closed	Top closed
Slat position 100 %	Bottom closed	Bottom closed	Bottom closed	Bottom closed

Ext. 1/2 Output 1+2 / 3+4 / 5+6 / 7+8 Blind/roller shutter	Express settings for blind/roller shutter
	Slat control
	Slat rotation time (open/closed) (0.1 s...25 s)	01:00
	Steps that shall be executed during slat rotation (1...10)	10

If the slat rotation time to be set is too short to be measured with the stopwatch, first set an approximate value. Test it by sending step telegrams.

Step commands can be used to rotate the blind slats. The opening angle of the slats can be changed in small steps, e.g. to prevent dazzle caused by a change in the position of the sun.

Depending on the Slat rotation time in one direction of motion, you can use the step time to provide the user with a certain number of steps for opening or closing the slats. The number of possible steps varies with the slat running time.

If the slat running time is 2.5 s, for example, you have a maximum of 15 steps available for moving through the entire slat opening range in one direction (2.5 s / 166 ms = 15 steps).

If you only wish to provide the user with 5 slat steps in this case:

2.5 s / 5 steps = 0.5 s step time

Procedure for measuring short slat running times:

Set an approximate time and select a large number of steps. This results in the step time. Example:
Slat running time = 1 s
Number of steps = 10; => Step time = 100 ms.
Move the slats to the closed position (slat position 100%). For blind types with operating position, this is the lower end position.
Count step commands: now send step commands until the blind moves upwards, and count the steps required.
Example: The blind requires 5 steps to move through the slat adjustment range. With the sixth step, the blind moves upwards.
With the set values for the step time (default step time: 100 ms), the following slat running time is calculated: 100 ms x 5 steps = 0.5 s.
You can now enter this value as the slat running time.

Procedure for measuring long slat running times:

Move the slats to the closed position (slat position 100%). For blind types with operating position, this is the lower end position.
Send an “Up” motion command.
Before opening the blind, the drive rotates the slats into the open position (0%). Measure the time for this rotation.
Stop the drive after the rotation.
For blind type: Downwards tilted / upwards horizontal and blind type: Downwards tilted / upwards closed (with operating position), note that the closed slat position is only set in the lower end position. You must then also add the time for the rotation from the operating position to the closed position.

NOTE: For blinds types 1 and 3 (without operating position), your setting for the slat running time affects the opening angle after a movement, since the selected opening angle (percentage value for the automatic slat position) is converted into a proportional rotation time for the slats. The same applies to the slat tracking function after a movement.