Page 8 of 8
75.5079.10 LO21P 20221219
TROUBLESHOOTING
Door will not open
All LO21P LEDs are off
Faulty door control
1. Ensure input power (orange and brown wires)
is good at LO21P:
12 – 24 VAC/VDC.
2. Go directly to door control and jumper COM
and ACT input. If door opens, proceed to next
step. If not, replace/repair faulty door control.
3. Go to LO21P and jumper the red/white wire to
the black/white wire.
The green LED on LO21P should come on and
the door should open. If not, replace LO21P.
If LED comes on, but door does not open,
ensure that the blue and green wires are
properly connected to the door control.
4. Ensure that the On / Off / Hold Open switch is
functioning properly.
5. Verify EAGLE proper operation. Jumper COM
and N.O. terminals while wires are attached.
If door does not open, check wiring between
EAGLE and LO21P.
Faulty LO21P
Faulty On / Off / Hold Open switch
Faulty EAGLE
Faulty wiring
Door will not open
Red LED on at LO21P
BODYGUARD-T in detection
1. Launch a setup on BODYGUARD-T.
2. Ensure BODYGUARD-Trelay output is
programmed to a value of 2 (default is 1).
3. Verify no breaks in wiring.
When BODYGUARD-T is in detection, an
open circuit occurs at the purple and gray
wires on the LO21P. If there is any break in
wiring between purple and gray and the
LO21P, the LO21P will react the same as if the
BODYGUARD-T were in detection.
BODYGUARD-T improperly programmed
Faulty wiring between BODYGUARD-T
and LO21P
Door will not close
On / Off / Hold Open switch is in “hold
open” position
Place switch in On or Auto position.
BODYGUARD-T is in detection
Launch a setup at BODYGUARD-T.
Faulty door control
Remove wire from COM and ACT terminal at door
control. If door does not close, replace or repair
the faulty control.
Bodyguard keeps re-learning with
each door position
Incorrect data polarity at BODYGUARD-T
Ensure that the white wire goes to terminal 6 of
BODYGUARD-T, and the red/white wire goes to
terminal 7 of BODYGUARD-T.
Insufficient voltage switching at red and
black wire of LO21P
When door is closed, there should be 0 volts
observed on the red and black wires of LO21P.
When the door is open, voltage should be greater
than approximately 9 volts. If voltage is not high
enough at red and black wires when the door
is open, the LO21P will not be able to send the
correct data to BODYGUARD-T.
Polarity must
also be correct. The red wire must ALWAYS
connect to the positive wire of the motor,
as observed during door open position.
See
important note in Wiring Connections (page 2).
As the door is closing, the
BODYGUARD-T seems to
reactivate the door to the open
position as it is seeing the door
closing
DIP switch 6 at LO21P is set incorrectly
Switch the position of DIP switch 6 and re-test
the door
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| Original Instructions |
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