Bosch EnviroDome Installation Manual download pdf (Page 18)

When the pressure alarm is acknowledged using

OFF-65-ENTER, the flashing display will stop, but the letter "P"

will appear in the top right-hand corner of the monitor

(PHOTO 7D). This AutoDome will continue to display this

warning until the low-pressure problem has been corrected.

Photo 7D Low Pressure Alarm continued

7.3 Alarm Relay Output

The alarm relay output may be activated either manually, or

triggered when an Alarm occurs. There are three possible

choices for the time period that the relay output will remain

activated. These choices are:

1 Follow input: This means it mimics the state of the alarm.

As long as the alarm is active, the relay will be energized.

2 Latched: The relay will energize upon an alarm, and will

remain energized until the user issues the command

OFF-65-ENTER twice. The first time acknowledges the

alarm and removes the OSD (if programmed to display),

and the second time clears the alarm and resets the relay.

3 Specific length of time. This can be anywhere from

one sec to ten min. An OFF-65-ENTER that's entered

twice will again deactivate the relay, even if the timer has

not yet expired.

These choices are also listed in the Advanced Menu,

SECTION 12.

To manually activate the relay output from a Bosch

controller/keyboard, use the sequence of ON-65-ENTER. Use

OFF-65-ENTER to deactivate it.

The function of OFF–65-ENTER is different when the trigger

for the relay output is an alarm input. When the alarm input is

activated, the relay output will also be activated immediately.

When the alarm is acknowledged by OFF-65-ENTER, the first

time, the relay output will NOT deactivate. It will remain on for

the period selected in the menu. However, if OFF-65-ENTER is

entered a second time, the relay output will deactivate immedi-

ately, no matter what time period is set in the menu. This acts as

an alarm override, but the relay output will not activate again

until the Alarm has been cleared and another alarm occurs.

Example: Alarm 1 is set to be NORMALLY OPEN,

GO TO SHOT 1, OSD ON, and the output is set to be

triggered by Input 1 for a time period of 1 min, and is

connected to the Alarm Input of a digital recorder (DVR).

When the external contact is closed, the AutoDome will move

to SHOT 1, flash the word ALARM on the display, and activate

the relay output so the digital recorder starts recording. Pressing

OFF-65-ENTER would clear the flashing display and change to

the letter "A" in the upper right-hand corner, but the relay out-

put will still be on and the DVR still recording. After 30 sec, the

alarm input is still active, but if OFF-65-ENTER is pressed

again, the relay output will turn off and the DVR will stop

recording. The "A" is displayed until the alarm contact changes

state.

Section 7

Low Pressure

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Bosch EnviroDome Installation Manual Page 18

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