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Troubleshooting (continued)
Display
Code
Message
F61
F61 CTM
FAULT
F62
F62 WLESS
BLK
Possible
Description
Causes
Cable
Cable tension
Tension
lost
Monitor
(CTM) device
triggered or
missing
Improperly
configured
input
CTM wiring
fault
Damaged
CTM device
Damaged
powerhead
main board
Wireless
Obstruction
edge
in doorway is
blocked
blocking eye
or contacting
edge
Unapproved
safety device
is being used
Wiring fault to
safety device
Damaged
edge
Damaged
wireless edge
transmitter
Diagnosis
Check that CTM devices
have proper cable tension
beneath the roller on the
arm, and that the roller is
properly riding on the cable.
Ensure the cables are
properly wrapped on the
cable drums.
Check system settings
item in the menu to check
the the setting for the CTM
input.
Check wiring for short or
open circuit
Ensure wires are wired into
the correct terminals
Swap CTM(s) with known-
good device
Or verify CTM with
multimeter on ohms range.
A single CTM with the hinge
open should measure 1000
Ohms (1 kOhm). When
closed, a CTM should
measure open-circuit.
Swap CTM(s) with known-
good CTM(s) connected
directly to the powerhead
main board
Check for obstructions
Ensure the safety device is
approved for use with the
wireless edge kit
Check wiring for short or
open circuit
Swap safety device with
known-good device
Swap safety device with
known-good device
connected directly to the
transmitter
57
Resolution
If cable tension is lost, carefully
resolve the issue, check that
limits are set properly, and
monitor the issue to ensure it is
resolved.
Ensure no binding occurs in door
travel that could produce slack
cables.
Ensure the configured number
of CTM devices matches the
number that are actually installed.
Relearn CTM(s) if necessary.
Correct wiring faults
If a known-good CTM works,
replace the faulty CTM
If the main board still won't detect
known-good CTM(s) connected
directly to the board, the fault
may exist with the main board.
Attempt power cycling the unit
and, failing that, resetting to
factory defaults. If problem still
persists, replace the main board.
If obstructions are present,
remove the obstruction
Replace the safety device with
one that is approved for use with
the wireless edge kit
Correct wiring faults
If a known-good safety device
works, replace the faulty safety
device
If the wireless edge still shows
blocked with known-good safety
devices connected directly,
power cycle the operator and the
wireless edge transmitter.
If problem still persists, replace
the transmitter.
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