Upward/Downward Travel Control; Step Travel Control (Venetian Blind); Step Travel Control (Roller Shutter) - Panasonic WRKT4504E Series Reference Manual

Switching/Blind Actuator

4.2.3.2 Upward/Downward Travel Control

If the up/down object is set to "0" the blind travels for upward, and if it is set to "1" the blind travels
for downward. While travelling, if the step/stop object is updated ("1" or "0") the blind stops
travelling. The blind channel must save and know its blind heigth level when it is stopped so that
accomplishes its next command according to the heigth level. For example if the blind travels upward
for 3 seconds and it is stopped, then it can travel downward for 3 seconds. At the lower end position
the blind can not travel to downwards even if any downward command is sent to blind channel. At the
upper end position, if any upward command is sent to up/down object, the blind travels upward for 1
second only.

4.2.3.3 Step Travel Control (Venetian Blind)

Step control is used for adjusting the slat position for venetian blinds. One step time can be set from
Complete slat turn parameter and Number of steps parameter. The calculation for one step time;
One step time = Complete slat turn parameter / Number of steps parameter
Slats are adjusted everytime a step command is sent to the step/stop object. In other words, when "0"
or "1" is sent to the step stop object, blind travels for one step time according to the value sent to the
step/stop object. If "1" is sent to step/stop object, the blind travels downward for one step time and if
"0" is sent to step/stop object, then the blind travels upward for one step time. Blind slats positions can
be adjusted for the blind level of between the lower end position and the complete slat turn time value.
During travel, after the complete slat turn time, slat positions remains constant.

4.2.3.4 Step Travel Control (Roller Shutter)

The step control is different for Roller Shutters. Total step number from lower end position to upper
end position must be calculated. Step number calculation is done by complete runtime parameter and
Object step duration parameter;
Step number = Complete runtime / Object step duration
When a step command is sent to shutter channel, the shutter travels one step for Object step duration
according to the step value that is sent to step/stop object. If "0" is sent to step/stop object, the shutter
goes one step for upward direction and if "1" is sent to step/stop object, the shutter goes one step for
downward direction. During step travel, the shutter can be stopped by any stop command.
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