Delta Controls eZFC-424R4-24, Инструкция по применению

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Configurable and Programmable enteliZONE Controllers
Page 16 of 84 eZFC-424R4-24 Application Guide
Edition 2.6
Alarm
Type
Description
Out of
Range
Used 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 Bitstring
alarm types.
Even though the configurable controller versions do not have EV objects, intrinsic alarming can be
enabled 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. enteliZONE
controllers 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 Intrinsic
Alarms in ORCA 3.40 on the Delta Controls support web site.
Trend Logs
A 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 configured
in the default database to monitor specific heating and cooling objects. However, all TLs can be
modified to monitor objects other than the default set object. You can also change the method of
data collection (Change of Value or polling) as well as the polling interval. However, fields that
display 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 rate
faster than every 5 seconds. TL objects have a 5-second record limit. Events that occur faster than
this 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 Object
1 SpaceTemp (AV1)
2 CurrentHeatSetpoint (AV800)