Despatch P1400+ Temperature Controller Manuel d'utilisateur télécharger pdf (Page 31)

5.3 Displays

Controllers are provided with a dual line display and

LED

indicators for mode, automatic tune, alarm

and output status. The upper display shows the process variable value during normal operation,

while the lower display shows the Setpoint value. See the preceding diagram - Typical front panel

and keys.

5.4 Keypad

Each instrument in the range has four switches, which are used to navigate through the user menus

and make adjustment to the parameter values. See the preceding diagram - Typical front panel and

keys

5.5 LED Functions

Table 3.

Typical LED functions

LED

Function

ON indicates the Setup Mode has been entered

(This LED is labelled SET on indicator models)

FLASHING indicates the manual mode has been entered

(On indicator models this LED is labelled SET and flashes when in

Configuration Mode )

ON indicates that Controller

Self Tune

mode is engaged

FLASHING indicates that Controller

Pre-Tune

mode is engaged

FLASHING indicates that an alarm condition is present

FLASHES in unison with Time Proportioning Primary outputs, or turns

ON with Valve Motor “Open” outputs.

For Current Proportioned outputs, ON indicates primary power is >0%

It turns ON when the stored Max. PV value is displayed on indicators

FLASHES in unison with Time Proportioning Secondary outputs, or turns

ON with Valve Motor “Close” outputs.

For Current Proportioned outputs, ON secondary power is >0%

It turns ON when the stored Min. PV value is displayed on indicators

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Despatch P1400+ Temperature Controller Manuel d'utilisateur Page 31