15
15
PROGRAMMING CURRENT SENSING
The
835/836
control boards incorporate a safety feature that will put the op-
erator into a hard shutdown mode if the control board detects a current sense
two consecutive times during a cycle. This hard shutdown condition may be
reset by shorting the
FIREBOX
or
UL
inputs on the left side of the control
board to ground. This condition may also be reset by pressing the
HARD
SHUTDOWN RESET
button located toward the upper right hand corner of the
control board. If a firebox is used in the installation, The firebox door (optional)
can be opened and closed to reset the control board.
The following instructions must be followed at installation for proper safety assurance.
All limits must be set before beginning this procedure.
1. Press and hold the
LED ENABLE
(see page 13) button for five seconds and release.
The
STOP LED
will blink indicating that the board is in learn mode.
3. Cycle gate/arm for 3-4 full cycles. The
STOP LED
will stop blinking indicating that the
operator is now ready for normal operation
4. Test the auto reverse sensitivity by obstructing the gate to ensure maximum safety
protection. The current sensitivity adjustment pot may be adjusted to decrease or
increase sensitivity.
Perform this test procedure on a monthly basis to assure proper and safe operation.
8. Refer to the page 18 & 19 to set other options such as
program switch options and close timer adjustments.
Installation is now complete.
Note: Once the board has learned the operator, the current sense may be readjusted at any
time without re-learning the board..
CLOCKWISE
Less sensitivity
Operator is harder to
current sense
COUNTER CLOCKWISE
More sensitivity
Operator is easy to
current sense
