75.5318.00 20080111
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TROUBLE-
SHOOTING
COMPANY
CONTACT
POWER-ON
POSITIONING,
ANGLING AND
ADJSUTING THE
MODULES
(Cont’d).
One notch of the distance adjustment corresponds to approximately 4".
If Zone B is too high: Turn the distance adjustment clockwise to increase the detection distance and to
decrease Zone B.
If Zone B is too low, turn the distance adjustment counter-clockwise to decrease the detection distance.
Per current ANSI A156.10, the detection zone must be within 28” of the floor. Ideally, each detector should
be adjusted so that detection occurs at 12” to 16” above the floor. Less than 12” of Zone B may result in
occasional false triggering of the sensor.
Once all sensors have been adjusted, activate the door several times and allow it to go through a full cycle
each time. Insure that no false triggering is occurring, as would be indicated by the door recycling or
stopping by itself at any point of travel.
Ensure compliance of all applicable safety standards (i.e. ANSI A156.10 / 19).
Install all remaining covers, end caps, screws, etc.
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Do not leave problems unresolved. If a satisfactory cannot be achieved after troubleshooting a problem, please contact
LCN at 1-800-526-2400. If you must wait for the following workday to call, leave the door inoperable until satisfactory
repairs can be made. Never sacrifice the safe operation of the automatic door or gate for an incomplete solution.
For more information, visit www.lcn.ingersollrand.com.
Door Mounted Safety
Sensor does not work at
all. No LED indications.
Faulty power supply
Faulty connections
Power supply must be 12 to 24 VAC ± 10% or
12 to 24 VDC + 10%.
Check for this power at terminals 7 & 8 of the
affected DMSS module.
DMSS output appears to be
working opposite of what is
expected.
Relay output may be configured
improperly.
Refer to Appendix for relay configurations. Be
sure to observe the LED indications on the
affected modules to help determine status.
Door stops by itself before
reaching the full open position.
Safety side DMSS may be seeing
an adjacent wall or rail behind the
door near the open position.
Observe the LED status on safety side of door.
Find the Door Mounted Safety Sensor module
that is falsely being triggered. Check for:
Proper detection angle
Detection
range
adjustment
Door Mounted Safety Sensor may need to be
inh bited at a specific point of door travel at the
safety side for proper operation. Refer to the
terminal connections on page 4.
Detection Distance Adjustment
Activation or safety is being
held triggered.
DMSS detection module may be
seeing the floor or unwanted
object near door.
Reduce the detection range on the affected
module(s). Detection should occur at 12” to
16” above the floor.
Erratic detection behavior is
occurring throughout the door’s
opening and closing cycle.
Possible faulty wiring at door
transfer location.
Check each wire for continuity with as multi-
meter, at the transfer location. Move the
wires around during testing to help locate
any breaks. Replace faulty wiring as
necessary.
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