
Computec
CDD6
EN
CDD6: user manual – rev.07
Page 62/74
6
Maintenance
6.1
Alarms
The CDD6 door drive implements a warning/alarms/errors list, with which it can communicate functional
errors external or internal of the CDD6; these codes are very important to detect the causes of issues
during maintenance phase.
The following table reports the codes list.
“AL”
Alarm
Description
Actions
1
Parameter
mismatch
An internal parameter set integrity
error has been detected
This event automatically recovers
after internal check
2
Motor
overtemperature
The estimated motor temperature
is over the alarm threshold
Check door operator and panels,
check manually free movement of
the door, remove friction. Check
speed profiles and door duty cycle
timings
3
Lock/Unlock
failure
The locking/unlocking of the clutch
was not possible due to obstacle or
mechanical jam
Check clutch movement and remove
any mechanical jam source. Check
clutch roller and pin. The clutch has
to be free when the panels are
closed.
4
Motor connection
error
The motor has been cabled
reversing the phase wires
Check motor cable connection and
correct it
5
Motor encoder
failure
The motor encoder signal is not
working properly
Check motor encoder cable
connection
6
Motor
overtemperature
The estimated motor temperature
is over the warning threshold
AUXS output (if configured by P-07).
7
Motor jerk
The motor cable is not connected
or one single wire is not connected
Check motor cable connection and
fix it
8
Overvoltage
The maximum value of the Vbus
voltage has been reached
Check speed profile according the
moving mass, and reduce the speed
profile and/or P-A9 and/or P-C9
9
Motor output
short-circuit
There is a short-circuit on the
motor output
Check the motor integrity, and the
motor cable connection. Remove
any possible short-circuit
11
Power unit
overtemperature
The estimated temperature of the
power supply unit reached the
maximum value.
This event is automatically recovers
when the estimated temperature
decreases below the recovery
threshold. Check power
consumption related to: applied
speed profiles, moving mass, door
duty cycle.