Carrier PRO-DIALOG PLUS 30RW, Руководство пользователя, Страница: 32 / 36

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6 - DIAGNOSTICS - TROUBLESHOOTING
6.1 - General
The PRO-DIALOG Plus control system has many fault tracing
aid functions. The local interface and its various menus give
access to all unit operating conditions. The test function makes
it possible to run a quick test of all devices on the unit. If an
operating fault is detected, an alarm is activated and an alarm
code is stored in the Alarm menu.
6.2 - Displaying alarms
The alarm LEDs on the summary interface (see section 4.1)
give a quick display of the status of each circuit and the unit as
a whole.
-
A flashing LED shows that the circuit is operating but
there is an alarm.
- A steady LED shows that the circuit has been shut down
due to a fault.
The Alarm menu on the main interface displays up to 5 fault
codes that are active on the unit.
6.3 - Resetting alarms
When the cause of the alarm has been corrected the alarm can
be reset, depending on the type, either automatically on return
to normal, or manually when action has been taken on the unit.
Alarms can be reset even if the unit is running.
This means that an alarm can be reset without stopping the
machine. In the event of a power supply interrupt, the unit
restarts automatically without the need for an external com-
mand. However, any faults active when the supply is inter-
rupted are saved and may in certain cases prevent a circuit or a
unit from restarting.
RESET OF ACTIVE ALARMS
OPERATION ITEM NUMBER ITEM VALUE PRESS MENU
2-DIGIT DISPLAY 4-DIGIT DISPLAY BUTTON LED
Hold down the MENU
button until the LED for
alarms lights. The 4-
digit display shows the
number of active
alarms (2 in this
example).
Press the Enter button
until "rESEt ALARrM" is
shown in the 4-digit
display.
Press the Enter button
again to validate the
reset. "Good" is
displayed for 2 seconds
then, "2 ALArM" and
then, "no ALArM".
0
0 2 ALArM
0 rESEt ALArM
0 Good
then, 2 AL
then, no ALArM
A manual reset must be run from the main interface using the
following procedure: