Liebert AC4 user manual Specify Hold Delay Time, Specify Restart Time, Setup Operation Menu

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 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 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 AC4 detects a closed contact that is defined as Normally Open.

When the output device returns to its normal state, the AC4 acknowl- edges any input change of state immediately.

The hold delay timer also takes effect when the 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 ↑↓

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

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

•When finished, press Enter ↵ again.

7.8.5Specify Restart Time

scroll through the numbers 00-99.

scroll through the numbers 00-59.

Setup Operation Menu

The restart delay timer directs the AC4 to wait a specified time before
		AUTO SEQUENCING OFF
changing the state of an output. This feature can prevent needless		STANDBY TESTING OFF
responses to transient conditions.		FAILED STANDBY N
If two or more outputs change state simultaneously, the AC4 begins a		↑↓ =NEXT	↵	=SELECT
		HOLD DELAY		: 10:00
new countdown between each output change of state.	> RESTART			: 00:06

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

• From the Setup Operation Menu, choose Restart, as shown at		Restart Delay Time
		RESTART DELAY
right, and press Enter ↵ .
		00	MIN : 06 SEC
• To change the time delay in minutes and seconds (in the range of
		↑↓	=NEXT ↵ =EDIT
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.

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