Dual Power; Software Version/Date; Alarm Log; Alarms - Black Box CRCW-12 User Manual

Chapter 4: E2 Controller

4.5.2.13 Dual Power

(Continued from previous page.)
Dual Power option. If the controller is equipped for Dual Power operation
(Section 1.6.6), a display screen shows the status of the power sources. OK
indicates the controller senses that the sources of power are available. The
power sources are designated as A or B by the way the input power
connections are made to the disconnect switches in the electric box. Ensure
the preferred (primary) power source is connected to the power source "A"
disconnect switch designated Q80 as shown in the electrical drawing. The
alternate (or back up) power source is to be connected to power source "B"
disconnect switch (Q81).

4.5.2.14 Software Version/Date

Displays the type of A/C system the controller is configured for (W/G, AR),
and the Black Box software version and its release date.

4.5.3 Alarm Log

Figure 4-21 (Continued). Information
menu loop.
Figure 4-22. Alarm Log screen.
No password is required to view alarm display messages. If an alarm condition
occurs, the first active alarm may be displayed by pressing the key. The
alarm screen display text message will remain unchanged until the alarm
condition is cleared.
If the alarm log is entered from the main menu, any other active alarm
message(s) may be viewed by using the Up and Down arrow keys to
scroll through alarm messages.

4.5.3.1 Alarms

The red LED backlight within the alarm key will illuminate any time an alarm
condition is present or previous alarms existed without having been reset or
cleared. An audible alarm will also activate when an alarm condition occurs.
The audible alarm may be enabled or disabled in the Service>Options menu
loop. The first active alarm screen may be displayed by pressing the Alarm
key. The Alarm display provides you with a text message describing the
abnormal operating condition. Use the Up and Down arrow keys to
scroll for any additional alarm messages. Only active alarm screens will be
displayed when the Alarm key is pressed. The alarm screen display will remain
unchanged until the alarm condition is corrected and the alarm key is
pressed again to clear the alarm.
When access is gained to the Alarm Log loop, use the Up and Down
arrow keys to scroll through the log for a history of alarm messages. The
alarms log may be cleared in the Service>Alarm log menu loop.
The application software supports two types of alarms: "Non-Critical" and
"Critical." Any alarm may be programmed to activate the "Custom"
(user-configured) alarm relay contacts.
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