Lectrotab Oval SETR-61 Operating Manual page 5

"Oval" Wiring
Wiring the Oval control begins by connecting it to the standard four conductor Lectrotab interconnect cable, OR by connecting
directly to the individual actuator wires, if the actuators have been supplied with long wires. With the Oval, no interface module is
used. See the mechanical portion of the Lectrotab installation manual through page 7. Instead of wiring to the manual switches as
shown, connect directly to the back of the Oval using ¼" female push-on connectors. Seven connections are made to the seven
connection Terms on the Oval as shown below. One additional connection is the communications cable if multiple stations are used.
Terminal 1 (+ D.C. Main Power)
From the vessel's D.C. power panel, protected by a 20 amp fuse or circuit breaker for 12vdc (10amp for 24vdc), supply this Terminal
with 12 or 24 VDC + (positive) power using AWG 14 wire or larger. Confirm that the tab actuators match the input voltage. Actuator
Model numbers starting with A or C are 12 VDC; model numbers starting with B or D are 24 VDC.
Terminal 2 (- D.C. Power)
Connect this Terminal, using AWG 14 wire or larger, to the vessel's – (negative) ground.
Terminal 3 (AUX Terminal)
Must provide 12 or 24 VDC power, depending on the voltage rating of the actuators being used, to the AUX terminal
from an existing switch or install a dedicated "Trim Tab" switch. Turn this switch ON and the "Oval" will show blinking
LED's, which denotes tabs up, and, whether the tabs are up, down, or in between, the "Oval will initiate a 10 second
calibration sequence in order to synchronize the tabs and the indicators at full retract, ready for use. Turning this switch
off initiates another sync/retract sequence for tabs up. See page 8 for other AUX switch options.
IMPORTANT
Terminal 3 must be powered for the Oval to operate. But do not use a jumper from + to AUX. This
will bypass the retract and indicator synchronizing feature of the Oval control. Connect the AUX
terminal to a switch which the helmsman will use to turn the trim tab system off and on.
Terminal 4 and 5 (Port Actuator)
Connect the port tab actuator black wire, or the Lectrotab interconnect cable black wire, to Terminal 4.
Connect the tab actuator white wire, or the Lectrotab interconnect cable red wire to Terminal 5.
Terminal 6 and 7 (Starboard Actuator)
Connect the starboard tab actuator black wire, or the Lectrotab interconnect cable green wire, to Terminal 6. Connect the actuator
white wire, or the Lectrotab interconnect cable white wire, to Terminal 7.
5
Lit # J1107
Revised January 2014