Lectrotab Oval SETR-61 Operating Manual page 6

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 Ovals, 12 or 24 VDC power needs to be connected to each one from any convenient local
source, to power the tab position indicator LED's and the internal microprocessor. Operating current, with all LED's lit, is 30
milliamps. Standby current is about 20 milliamps.
Do not make any connection to the # 3 AUX terminal or terminals number 4, 5, 6 or 7, on any remote unit. Only the
master has these five terminals connected. All remotes use only terminals 1 and 2 and the, 2 pin communications plug.
1. Turn on the power at the vessel's main panel to energize the trim tab system. There will be no response by the Oval control.
2. Turn on the tab control switch the boat builder or other installer has selected to energize the Oval control. This may be an
existing switch, a gearshift neutral switch or a dedicated switch marked "Trim Tabs" or other options as noted on page 8.
This will "wake up" the Oval and initiate a 10 second calibration sequence in order to synchronize the tabs and indicators at
full retract. The tab position indicators will show one blinking LED at the top of each 8 LED indicator. The tabs are now
ready to use.
3. Refer to the "Oval Description" on page 2 for how to use the "Oval" to control the tabs.
4. When a given trip has ended, turn off the switch outlined in item 2 above. Turning the switch off will initiate a 10 second
calibration sequence in order to synchronize the tabs and the indicators at full retract, ready for docking. The "Oval" display
will show 2 LED's blinking. In this position, the retracted actuator ram is protected from fouling and the retracted tabs are
ready for the fork lift.
Remote "Oval" Wiring
- WARNING -
"Oval" Operation
6
Lit # J1107
Revised January 2014