Emerson AC4 user manual Specify Hold Delay Time, Specify Restart Time, Restart Delay Time

Models: AC4

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7.8.4 Specify Hold Delay Time

System and Control Options

7.8.4 Specify Hold Delay Time

Setup Operation Menu

 

After an output changes state, the hold delay timer directs the Liebert AC4 to ignore all inputs in the same zone for the specified time.

This delay is the amount of time that must elapse before the Liebert AC4 acknowledges a change of state in any input. The default is 10 minutes (displayed as 10 MIN : 00 SEC).

The time delay applies only when a monitored output device changes from its normal state—for example, the Liebert AC4 detects a closed contact that is defined as Normally Open.

When the output device returns to its normal state, the Liebert AC4 acknowledges any input change of state immediately.

The hold delay timer also takes effect when the Liebert AC4 is powered up. All alarms are ignored until the hold delay time expires.

AUTO SEQUENCING OFF STANDBY TESTING OFF FAILED STANDBY N ↑↓=NEXT =SELECT

> HOLD DELAY : 10:00

RESTART

: 00:06

Hold Delay Time

HOLD DELAY

10 MIN : 00 SEC ↑↓=NEXT =EDIT

From the Setup Operation Menu, choose Hold 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.

7.8.5 Specify Restart Time

Setup Operation Menu

 

The restart delay timer directs the Liebert AC4 to wait a specified time before changing the state of an output. This feature can prevent needless responses to transient conditions.

If two or more outputs change state simultaneously, the Liebert AC4 begins a new countdown between each output change of state.

The default is 6 seconds (displayed as 00 MIN : 06 SEC).

From the Setup Operation Menu, choose Restart, 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).

AUTO SEQUENCING OFF STANDBY TESTING OFF FAILED STANDBY N ↑↓=NEXT =SELECT

HOLD DELAY

:

10:00

> RESTART

:

00:06

Restart Delay Time

RESTART DELAY

00 MIN : 06 SEC

↑↓=NEXT =EDIT

For seconds (SEC), press and hold one of the arrow keys ↑↓ scroll through the numbers 00-59.

When finished, press Enter again.

Liebert® AC4

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Emerson AC4 user manual Specify Hold Delay Time, Specify Restart Time, Restart Delay Time