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0DT872 01-12-2021
8. TROUBLESHOOTING
COMMAND
PROBLEM
CHECK
Any command with the
curtain in any position
The curtain and the
motor do not move
• STOP activated (“Stop” LED on push-button panel permanently on)
• Motor with thermal switch activated
• Manual operation safety micro activated
• One of the power devices faulty (control panel, motor, motor
connection cable)
Opening command with
curtain closed
The motor does not
move
• Opening command not connected correctly or faulty
(
commands 1 - 3
)
• Closing command always activated or short-circuited
Closing command with
curtain open
The motor does not
move
• Closing command not connected correctly or faulty
(
commands 1 - 4
)
• Safety device activated (Stop button LED flashing)
• Opening command always activated or short-circuited
• Failed safety device autotest (Stop LED on push-button panel
OFF)
Stop activated during
an operation
The motor does not
stop
• Stop command not working or incorrectly connected (Stop
LED on push-button panel does not come on)
The motor stops late
• Motor brake worn or faulty
Activation of a safety
device during closing
Door movement is not
reversed
• Safety device faulty or not connected correctly
• Check earth connections.
• Check photocell bypass position.
Automatic closure
activated with curtain
open
The door does not close
automatically after the
time set with TC
• Automatic closure not enabled correctly
• Opening command always activated or short-circuited
• Failed safety device autotest
During an operation
The curtain does not
stop correctly at the limit
switch
• Check motor brake
• Check connection of encoder magnet to the motor shaft
NB: for diagnostics specifically for the inverter panel 52E, also see page 37
Before performing and operations and working on the electronic equipment make sure that the power
supply has been disconnected
The following instructions are for qualified and authorised personnel only. Specific laws and standards
must always be complied with even when not expressly indicated.
For repair work or replacements, use only original Ditec spare parts.
DANGER
WARNING
EN
