Technical data

ManualsBrandsEmerson ManualsAir ConditionerDataMate 3000 Series

Chapter 5 Microprocessor Control 13

DataMate 3000 Series Air Conditioner Technical Manual

5.6.2 Alarm History

Select Alarm History from the Alarm Menu screen to view the Alarm History screen. The screen displays the detailed

inactive alarm information or “No alarms” if no inactive alarm exists.

The alarm No./the total number inactive, alarm name, the time/date occurrence are indicated for each alarm, as shown

in Figure 5-10.

History:

Hi Temp

01/ 01

1/4

00:00:00

Figure 5-10 Alarm History screen

Use Up/Down buttons to scroll if there are more alarms.

This system can store up to 30 latest inactive alarms. They will not be lost when the system is powered off.

5.6.3 Alarm Setpoint

The alarm setpoints will not be lost when power fails. Select Alarm Setpoint from the Alarm Menu to browse or change

the setpoints listed in Figure 5-11.

The defaults are sufficient for most applications and changing them is normally unnecessary. For special application,

they must be changed under the guidance of trained professional personnel.

Hi Temp

Lo Temp

Hi Hum

Lo Hum

29°C

60%rh

40%rh

Figure 5-11 Alarm Setpoint screen

To change the setpoint, use Up/Down buttons to move the cursor to the item desired to be changed and press Enter to

select it. Press Enter again, use Up/Down buttons to change the value of each digit, and then press Enter to validate

the change.

Refer to Table 5-1 for the defaults and the setting ranges.

5.6.4 Alarm Output

The alarm output settings will not be lost when power fails. Select Alarm Outputs from the Alarm Menu to browse or

change the settings listed in Figure 5-12.

Hi Press

Lo Press

Hi Temp

Lo Temp

ENAB

Hi Hum

Lo Hum

Power Fail

ShortCycle

ENAB

Custom #1

Custom #2

Rpr MnFan

Rpr Humid

ENAB

Rpr Filter

Comm Fail

Coil Froze

Humid Fail

ENAB

SnsrB Lost

Dschg Temp

Power Lost

Power OLV

ENAB

Power PL

Power FS

ENAB

Figure 5-12 Alarm output menu

The alarm output can be set to OPEN, CLOSE or STOP. Move the cursor to the item to be changed, press Enter to

move the cursor to the OPEN/ CLOSE /STOP field. Use Up/Down buttons to toggle among OPEN, CLOSE and STOP.

Press Enter to validate the setting.