THE “OVAL” CONTROL OPERATING GUIDE
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THE “OVAL” CONTROL OPERATING GUIDE 1. Power up the boat’s main DC service and turn on the trim tab circuit breaker. The “Oval" will come up on standby but no LED’s will be lit. 2. Turn on the switch provided by the installer which wakes up the “Oval” and puts it in service. The “Oval” will initiate a 10 second calibration sequence to synchronize the tabs and indicators at full retract, ready for use. The display will show one tab position LED, on both sides, blinking at the top, to indicate both tabs are up. 3. The top portion of the Left switch is marked Port/Bow Down. Pushing this switch deploys the right tab and its movement is indicated by the right set of the red LED’s. All LED’s lit is down. The other 3 switches operate in the same manner, for port and starboard, bow up and bow down. These switches can be pushed individually, simultaneously or cross controlled, as appropriate. 4. The spot at the top center is an automatic dimmer for the tab position LED’s, for nighttime operations. 5. At trip’s end, when the switch which turned the “Oval” on, is turned off, the “Oval” will again initiate a 10 second calibration sequence to synchronize the tabs and indicators at full retract, and the “Oval” will revert to inoperative standby, with a 20 ma current draw. 6. If the “Oval” does not appear to be operating correctly, refer to the installation guide on the reverse side for installation insight, or call 888-LECTROTab for assistance. 7. When leaving the boat, turn off the boat’s main D.C. service to turn the 20 ma standby current off. LECTROTAB ● Linear Devices Corporation ● 8790 Park Central Drive ● Richmond, VA 23227 Phone: 804-261-3888, Fax: 804-264-3070, www.lectrotab.com 1 Lit # J1107 Revised 9/24/07

THE “OVAL” CONTROL QUICK INSTALLATION GUIDE 1. The “Oval” will fit nicely into a 2” to 2 ½ “diameter hole. 2. Wire the “Oval” as noted above. If the actuator wires will not reach the control, extend them with AWG # 14 wire. Lectrotab extending cable is color coded black, red, green and white, with recommended connections as follows, BLACK - port actuator black. RED - port actuator white. GREEN - starboard actuator black. WHITE starboard actuator white. - IMPORTANT DO NOT power the “Oval’s” AUX terminal directly from the trim tab fuse or circuit breaker, or from the + terminal on the “Oval”....

Model SETR-50 and SETR-51 Trim Tab Control Pictured above is the SETR-50 with black switches on a gray background. The SETR-51 is identical except for the color, wherein it has black switches on a black background. The actual size is about 4” wide, 3 ½” high and ½” deep. Introduction Thanks for your interest in the Lectrotab model SETR-50/51, Sealed Electronic Trim and Retract system, with tab position indication. The SETR-50/51 “Oval” is either a stand alone or multi-station, software driven, microprocessor based control, featuring positive click switches with integrated LED position...

The “Oval” Description The SETR-50/51 “Oval” control operates as described below: 1 Two tab position indicators display left and right tab positions on two separate sets of LEDs. One Blinking LED at the top indicates the tab on that side is fully retracted as indicated by “Blinking Tabs Up” printed on the face of the control. 2 Photocell senses light level to automatically dim the trim indicator LEDs as daylight fades. 3 For Starboard Bow Down trim control, push the top of the starboard switch until the click is felt. The port tab will deploy and the port indicator will show the tab...

“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...

Remote “Oval” Wiring After the initial “Oval” has been installed and tested, up to 5 more “Ovals” may be installed as remote stations. For each Oval, one Lectrotab communication wire assembly, part # SR, will be needed. This is an 18 gauge two conductor wire, blue and brown, with a special plug on one end which plugs into the Oval’s communication port on the back side of the control, to the right of Terminal 5. Wire as noted below, where in communication ports of all Ovals in the system, up to a total of 6, including the master, are electrically connected in parallel. Also, on all remote...

Alternative Wiring and Operation Per the industry standard, set by most U.S. trim tab manufacturers some years ago, the Lectrotab control switches are set up to be pushed directly according to what the helmsman needs the boat to do. If the bow is high, push the upper portion of both switches to make the bow go DOWN. If the bow is high on the left, push only the LEFT switch to make the LEFT bow go DOWN. Pressing the lower part of the rocker switch causes the bow to come up: This is the way the rocker switches, or buttons, on the “Oval” are marked. Refer to the illustration on page 1. Tab...

Aux Switch Options 1.) Using a dedicated “Trim Tab Switch”: Connect terminal 3 to an existing or newly installed switch which is convenient to the helmsman to turn the “Oval” on for use, and off at trip’s end for full tab retraction and tab position indicator synchronization at tabs up. 2.) Using a conventional multifunction key or rotary switch for “OFF-AUX-IGN-START” with gasoline engine powered boats: Connect Terminal 3 to the AUX position of this type switch. DO NOT use the ignition (IGN) position. Whenever the AUX position is turned on or off the “Oval” will respond accordingly. DO NOT...