MODEL 2604 CONTROLLER - USER GUIDE - d a n m a r k

2604 Controller Alarm Operation5.5. ALARM ACKNOWLEDGEMENTA new alarm can be acknowledged in five ways:1. By pressing and simultaneously2. Through the alarms ‘Summary’ page3. Through the ‘Alarms’ page4. From an external source, such as a pushbutton, connected to a suitably configured digitalinput5. Through digital communicationsThe message will remain on the screen and the alarm symbol, %, will continue to flash untilthe alarm is acknowledged - you are prompted to do this by pressing andsimultaneously. The symbol will stop flashing and remain illuminated until all alarmconditions are removed. If a further alarm occurs the symbol will start flashing again and anew alarm message will pop up.The message displayed indicates the source of the alarm and may be customised to the usersterminology. The source will inherit the name of the channel or the loop or the user alarmname.The operation of the alarm acknowledgement depends whether the alarm is non-latching orlatching, auto or manual reset. This is shown in the following tables:-Non Latched AlarmsAlarmConditionAcknowledge Symbol % Message Ext relay(if fitted)ON No Flashing Alarm message OnOff No Off Former display OffAlarmConditionAcknowledge Symbol % Alarm message Ext relay(if fitted)ON No Flashing Alarm message OnOn Yes Steady Former display OffOff Off Former message OffLatched Alarm - AutoAlarmConditionAcknowledge Symbol % Message Ext relay(if fitted)ON No Flashing Alarm message OnOff No Flashing Alarm message OnOffYesAlarmConditionAcknowledge Symbol % Message Ext relay(if fitted)ON No Flashing Alarm message OnON Yes Steady S:Access Level OffOff - Off Normal display OffUser Guide Part No HA026491 Issue 3.0 Apr-02 5-9