Lectrotab MLC-1 Installation & Operation Manual page 9

Electromechanical trim tab systems
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Enter, Adjust and Exit Program Mode:
Before entering program mode, 12vdc or 24vdc must be applied to MLC
terminals 1, 2 and 7 (see wiring)
Press and hold Bow Down (top) button and Bow Up (bottom) button for 4
seconds to enter program mode
LED L1 (top left LED) will begin flashing and LED R1 (top right LED) will be lit
constantly
Press and release the Port Side Down (left) button to cycle through the three
settings under "Setting"
Press and release the Starboard Side Down (right) button to change the "Setting
Value"
Press and hold Bow Down (top) button and Bow Up (bottom) button for 4
seconds to exit and save new value
Setting
Enter
(1L) Auto
Press Bow
Retract
Down and Bow
Last
Up 4 sec.
Setting
(2L)
Press Bow
Actuator
Down and Bow
Stroke
Up 4 sec.
Time
(3L) Swap
Press Bow
LED
Down and Bow
tracking
Up 4 sec.
Program Mode Sequence
Change Setting
Change Setting
Press/Release
Press/Release
Port Bow Side
Down
Press/Release
Press/Release
Port Bow Side
Down
Press/Release
Press/Release
Port Bow Side
Down
Setting Value Default
Value
R1 = Standard
Stbd Bow
R2 = Last Tab
Down
Set
R1=4sec,
R2=5sec.,
Stbd Bow
R3=6s, R4=7s,
Down
R5=8s
R1 = LEDs
track tab
position
Stbd Bow
R2 = LEDs
Down
track button
press
9
Program Details
R1=Standard Auto Retract
R1
R2=Return to last tab position
before key switch off
Change setting value to match
R5
actuator stroke time to fully
deploy
R1==LEDs track angle of tab
position
R1
R2=LEDs track same side as
button being pressed

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