Rev C Doc 6001288 (01-20285) 11 of 39
J. GATE SENSITIVITY ADJUSTMENTS
The gate operator monitors both average and peak motor current. When the gate encounters an
obstruction, the gate operator senses the change in motor current and stops or reverses the gate. Three
sensitivity adjustments are factory-set for most installations:
• Right gate motion (R69) @ 11:00 o’clock
• Left gate motion (R160) @ 11:00 o’clock
• Inrush current (R203) @ 9:00 o’clock
If your installation requires different sensitivity adjustments, use the following procedures:
♦ For Typical Installation, set switch S1 to “Open to Left” position and use the “Typical Installation”
adjustment procedures below. For Restricted Installation, set S1 to “Open to Right” position and use
the “Restricted Installation” adjustment procedures.
♦ The minimum sensitivity is full clockwise and maximum sensitivity is full counter clockwise. These
adjustments must be made while the gate is in motion.
♦ Before starting the adjustments, verify that the Left and Right reverse pots are set fully clockwise,
and the Inrush pot is set to the 9 o’clock position (see (Figure 8).
IMPORTANT: Current flow varies with temperature. Do not tune the sensitivity measurements too
finely, or they may change with the time of day or seasons.
♦ Make all adjustments in the order listed.
Figure 8. Gate Sensitivity Adjustments Location.
1. TYPICAL INSTALLATION ADJUSTMENTS
“Left Reverse” Adjustment (R160)
1. Initiate opening the gate.
2. Wait 1 to 2 seconds, then lightly “tug” against the edge of the gate to simulate an obstacle.
3. If the gate does not stop or back up, reclose the gate and adjust the pot slightly
counterclockwise.
4. Repeat steps 1-3 until the gate stops or backs up when tugged and has the desired sensitivity.
“Right Reverse” Adjustment (R69)
1. Open the gate fully, then initiate closing the gate.
2. Wait 1 to 2 seconds, then lightly “bump” the leading edge of the gate to simulate an obstacle.
3. If the gate does not stop or back up, reopen the gate and adjust the pot slightly
counterclockwise.
4. Repeat steps 1-3 until gate stops or backs up when bumped and has the desired sensitivity.
