Delta eZV-440 Application Manual

Contents

Delta eZV-440 Application Manual Manual pdf 17 page image

Configurable and Programmable enteliZONE ControllersPage 16 of 84 eZV-440 Application GuideEdition 2.6AlarmType DescriptionOut ofRangeUsed to alarm when an analog value varies outside of a set of fixed limits.The enteliZONE family of controllers does not support Change of Value or Change of Bitstringalarm types.Even though the configurable controller versions do not have EV objects, intrinsic alarming can beenabled on input and output points, specifically analog input (AI), binary input (BI), analog output(AO) and binary output (BO).EV objects will send out auto generated messages to notify users about alarms. enteliZONEcontrollers do not support alarm acknowledgments.Custom alarm messages are supported by the following firmware versions:l eZV-440 controller firmware version 2.1 and higher for EV objects only.l eZFC-424R4-24 controller firmware version 2.2 and higher for EV objects only.l eZ-440R4-230 controller firmware version 2.1 and higher for EV objects only.For more information about how to set up an intrinsic alarm, see the webinar IntrinsicAlarms in ORCA 3.40 on the Delta Controls support web site.Trend LogsA programmable enteliZONE controller supports up to 8 trend logs, 4 of which are user-defined.The configurable controller version supports 4 trend log objects (TL1 to 4) which are pre configuredin the default database to monitor specific heating and cooling objects. However, all TLs can bemodified to monitor objects other than the default set object. You can also change the method ofdata collection (Change of Value or polling) as well as the polling interval. However, fields thatdisplay the maximum and total sample size are read-only.It is not recommended to use Change of Value for objects that are expected to change at a ratefaster than every 5 seconds. TL objects have a 5-second record limit. Events that occur faster thanthis record limit will result in “Log Enabled” or “Log Interrupted” entries that can be hard to interpret.The default database TL objects are listed in the following table.Trend Log Monitored Object1 SpaceTemp (AV1)2 CurrentHeatSetpoint (AV800)