Computec Door Drive 5.0, User Manual, Page: 51 / 63

Computec
CDD5.0
EN CDD 5.0: user manual – Rev.01 Page 51/63
6 Maintenance
6.1 Alarms
The CDD 5.0 door drive implements a warning/alarms/errors list, with which it can communicate functional
errors external or internal of the CDD5; this codes are very important to detect the causes of issues during
maintenance phase.
The following table reports the codes list.
Code Type Description Controller actions User actions
AL01
Warning MLC signal error
The controller continues the
normal work. Increased and
stored the event counter Check correct settings for
PC01, PC02, PC03.
Check MLC signals
AL02
Alarm Motor over-temperature
The controller stops any
movement for 5s, and then
recovers normal working. In
case the maximum allowed
temperature is overpassed
the controller waits for 3’, to
permit the motor
temperature recovery.
Check if mechanical issue
of frictions are present at
all the floors.
Check that the speed
profile are not too fast for
the system.
AL03
Warning Failed external reversing
The controller completes the
closing at reduced speed
Check correct PC00
settings.
Check correct DOC
activation from MLC after
RVS activation from door
drive
Check correct cabling of
RVS signal and DOC, DCC
AL04
Alarm
Motor connection error
(the door moves in
opposite direction)
The controller restarts within
10s to recheck if normal
working conditions restored.
After 5 consecutive errors
within 5’, the system stops
waiting for maintenance. Check correct motor
connection on X4 plug:
positive to 43
negative to 44
Check motor and cables
integrity
AL05
Alarm
Motor encoder
connection error
The controller restarts within
10s to recheck if normal
working conditions restored.
After 5 consecutive errors
within 5’, the system stops
waiting for maintenance.
Check X5 connection of the
encoder cable.
Check encoder cable
integrity
AL06
- - - -
AL07
Alarm
Motor connection
interruption
The controller restarts within
10s to recheck if normal
working conditions restored.
After 5 consecutive errors
within 5’, the system stops
waiting for maintenance.
Check if motor connection
are present on plug X4:
positive to 43
negative to 44
Check motor integrity