Makel MSA-CM Series User Manual page 31

Delay for direction inversion (x100
ms)
a) Blinds Control
Blinds control is not enabled by default and can be enabled by setting to "Yes" the "Control also
Blinds". Enabling blinds control requires to define three more parameters that basically define how the
blinds are controlled. The value of "Blinds step time (x10ms)" multiplied by "Number of blinds steps"
must correspond to the total time the blinds take to make a full movement (180° to 0°).
When configured to control also blinds, when "Up" message is sent to "Slat Angle | Stop Up /
Down" CO and no movement is occurring, the device will drive the Up switch for de time defined in
"Blinds step time (x10ms)"; analogous for "Down" message. If a movement is in progress the
movement is stoped, no matter if the received message is "Up" or "Down" (see Figure 11).
In Figure 12 it's presented a possible situation of shutter and blinds control. It must be assumed that
initially the shutters are totally opened (meaning 0%) and the blinds with and angle of 0°. When the down
movement is started the blinds will start towards 180° which takes T_b_180 ("Blinds step time (x10ms)"
multiplied by "Number of blinds steps"), after the device starts counting "Time for complete down
movement (s)"; once this value is reached the shutter is considered totally closed and the down
movement stops; since before the movement the blinds angle was of 0°, the MSAxxyy will restore that
position by driving the up direction from of 180° towards of 0°, which takes T_b_180; once this time is
elapsed the movement is stopped. In the occurrence of a message to the blinds angle, 120° as in the
example, the necessary time to rotate the blinds from 0° to 120° is calculated ( T_b_120) and the down
direction is driven for that amount of time
User's Manual
Defines the time gap
movements when the shutter is moving
one direction and is told to move the
opposite direction.
4 Detailed Functions Description
between Min: 5 (500 ms)
Max: 255 (25500 ms)
Default: 10 (1000 ms)
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