DTS 412 Installation Manual page 14

The unit beeps 3 times and
opens partially, beeps 3
times and the closes. This
can sometimes continue
indefinitely.
When gate reaches a limit
actuator, the unit does not
stop running.
Gate motor is jumping teeth
on the rack.
Gate jams in the open or
closed position and is not
easy to manually release.
The pedestrian (Pd) mode is
being triggered. This is
constant if the sequence
keeps repeating.
A transmitter code has been
programmed into the
pedestrian (Pd Lrn) function
of the receiver.
Receiver is faulty and
transmitting constantly
Limit inputs wired incorrectly
(out of sync' with the motor
direction.)
Limit switch is faulty.
Pinion to rack spacing is
incorrect.
Rack is insufficiently fastened
to gate leaf.
Gate is running too far.
Gate is running past its limit
actuator.
14
Check with the other
operators and check
switching equipment /
cabling attached to the (Pd)
input.
Re-code the receiver as per
instructions
Check with supplier.
Re-wire
Check with supplier.
Re-align.
Re-align and correct fastening.
Adjust the limit actuators so
that the gate does not ram into
the end stops.
Replace the switch, rewire
correctly or check limit spring
assembly.