Emerson Liebert Remote Monitoring Panel Manuel d'utilisateur télécharger pdf (Page 55)

System and Control Options

47 Liebert

Universal Monitor

™

9.3.4 Set Up Alarmable Inputs in Latched or Unlatched Mode

Alarmable input points may be set up in Latched mode (Y), which

requires the user to clear the Liebert Universal Monitor alarms after

an alarm has occurred, or Unlatched mode (N), in which alarms will

automatically clear after a return-to-normal state. The default setting

for alarmable inputs is N (Unlatched). Any input defined as an event

is automatically Unlatched.

A digital input defined as Latched does not reset automatically after

an alarm. It will remain in the triggered position even after the

monitored device returns to normal. After an alarm, the user must

manually reset Latched inputs, as described in 9.12.1 - Clear Active

Alarms. This also means that any digital outputs linked to a Latched

digital input will remain triggered until the input is manually reset.

A digital input defined as Unlatched will automatically track the

status of the monitored device. No action by the user is required.

• From the Setup Input Menu, choose Latched, as shown above

right, and press Enter ↵.

• To change this feature, use the arrows

↑↓ to choose Y (Yes -

Latched) or N (No - Unlatched), then press Enter ↵.

NOTE: Only alarmable input points may be set up as Latched. If you

attempt to set up an event as Latched, the message shown at right

appears. Press the ESC key to return to the previous screen to

continue configuring the digital input.

The only way to reset latched alarms is by clearing active alarms. This

step is required to return latched points to their normal state. For

details, see 9.12.1 - Clear Active Alarms.

9.3.5 Set Up Delay Time

Each input may be set up with a specified time delay between the

occurrence of an alarm or event—a monitored device changes state—

and any response by the Liebert Universal Monitor. This feature can

prevent needless responses to transient conditions.

This delay is the amount of time that must elapse before the Liebert

Universal Monitor acknowledges the change of state in the monitored

device and takes any further action, such as dialing configured pagers.

The default time delay is 1 second (displayed as 00 MIN : 01 SEC).

The time delay applies only when a monitored device changes from its

normal state—for example, the Liebert Universal Monitor detects a

closed contact that is defined as Normally Open.

When the monitored device returns to its normal state, the Liebert

Universal Monitor acknowledges the change of state immediately.

• From the Setup Input Menu, choose Delay, as shown at right, and

press Enter ↵.

• To change the time delay in minutes and seconds (in the range of 00:00 to 99:59):

• For minutes (MIN), press and hold one of the arrow keys

↑↓ scroll through the numbers 00-99.

• Press Enter ↵ to advance to seconds (SEC).

• For seconds (SEC), press and hold one of the arrow keys

↑↓ scroll through the numbers 00-59.

• When finished, press Enter ↵ again.

Setup Input Menu

SETUP INPUT_01

LABEL: INPUT_01

NORM OPEN/CLOSE: NO

ALARM/EVENT: AL

↑↓=NEXT ↵=SELECT

> LATCHED: N

DELAY: 00:01

Latched / Unlatched

IS ALARM

LATCHED? N

↑↓=Y/N ↵=END

Message (if input has

been defined as an event)

LATCH NOT ALLOWED

WHEN IN EVENT MODE

ESC=BACK

Setup Input Menu

SETUP INPUT_01

LABEL: INPUT_01

NORM OPEN/CLOSE: NO

ALARM/EVENT: AL

↑↓=NEXT ↵=SELECT

LATCHED: N

DELAY: 00:01

Delay Time

DELAY TIME BEFORE

TRIGGER?

MIN : 01 SEC

↑↓=SELECT

↵=NEXT/END

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 143 144

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Emerson Liebert Remote Monitoring Panel Manuel d'utilisateur Page 55

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