Emerson AC8 Change Label Name of Input, Define Input as Normally Open or Normally Closed

System and Control Options

7.3.1 Change Label (Name of Input)

Each input has a default label (Device_1, Device_2, etc.) that you may change to a more descriptive name for ease in recognizing alarms and events associated with the input. The label may consist of up to eight characters (see Table 14 for valid characters).

The device name assigned through this menu is also displayed for the corresponding output.

Table 16 Input and output labels

Label	Applies to:	Label	Applies to:
Device_1	Input 1 and Output 1	Device_5	Input 5 and Output 5
Device_2	Input 2 and Output 2	Device_6	Input 6 and Output 6
Device_3	Input 3 and Output 3	Device_7	Input 7 and Output 7
Device_4	Input 4 and Output 4	Device_8	Input 8 and Output 8

If the input label is changed, the output will change also.

Setup Inputs Menu

SETUP DEVICE_1

> LABEL: DEVICE_1

NORM OPEN/CLOSE: NO
ALARM/EVENT: AL
↑↓ =NEXT	↵ =SELECT

LATCHED: Y

DELAY: 00:01

Change Label

CHANGE LABEL

DEVICE_1

↑↓ =SELECT ↵ =NEXT/END

•From the Setup Inputs Menu, choose Label for the selected input—Label: Device_1 in the example above right—and press Enter ↵ .

•To change the input’s label, which may consist of up to eight characters:

•Use the arrows ↑↓ to choose a character.

•Press Enter ↵ to advance to the next character position.

•When finished, press Enter ↵ again.

7.3.2Define Input as Normally Open or Normally Closed

Each input may be set up as Normally Open (NO) or Normally Closed (NC). The default setting for all input points is NO (Normally Open).

If you require an input to be a supervised point, define the input as Normally Closed (NC).

•From the Setup Inputs Menu, choose Norm Open/Close, as shown at right, and press Enter ↵ .

• To change the normal state for this input, use the arrows ↑↓ to choose NO (Normally Open) or NC (Normally Closed), then press Enter ↵ .

7.3.3Define Input as Alarmable or Event

Each digital input may be defined as Alarmable (AL) or as an Event (EV).

•For a digital input defined as alarmable, the following alarm reactions occur when the status of the monitored input device changes: the LCD flashes, the audible horn sounds, configured pager numbers will be notified and a record is entered in the Alarm Log.

•For a digital input defined as an event, the status change is recorded in the Event Log.

For both types (alarmable and event), user setup determines output control—whether the device that changed status is disabled or kept in operating mode and whether a standby device is set to operate.

By default, all digital inputs are set up as AL (Alarmable).

•From the Setup Inputs Menu, choose Alarm/Event, as shown at right, and press Enter ↵ .

• To change the type of digital input, use the arrows ↑↓ to choose AL (Alarmable) or EV (Event), then press Enter ↵ .

Setup Inputs Menu

SETUP DEVICE_1 LABEL: DEVICE_1

>NORM OPEN/CLOSE: NO

ALARM/EVENT: AL

↵=SELECT↑↓ =NEXT

LATCHED: Y

DELAY: 00:01

Normally Open / Closed

IS INPUT NORMALLY OPEN OR CLOSED? NO

↑↓ =NO/NC ↵ =END

Setup Inputs Menu

SETUP DEVICE_1 LABEL: DEVICE_1

NORM OPEN/CLOSE: NO

> ALARM/EVENT: AL
↑↓ =NEXT	↵ =SELECT

LATCHED: Y

DELAY: 00:01

Alarmable / Event

IS INPUT AN ALARM OR EVENT? AL

↑↓ =AL/EV ↵ =END

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