Siemens POL638 Series User Manual

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Siemens Standard application AHU CE1P3977en_02
Building Technologies Detail pages: Inputs and outputs 01.02.2010
Parameter Range Function
Alarm config
– enblHighLimit
– enblLowLimit
– enblOffNormal
– enblFault
– self Release
– type Alarm
– evtOffNormal
– evtFault
– evtNormal
– Done
Alarm response: Definition of a trigger for an alarm
event.
– High-limit alarms are enabled.
– Low-limit alarms are enabled.
– Not available for analog inputs.
– Fault alarms (Reliability <> 0) are enabled.
– Automatic reset of fault and off normal alarms.
– Not used.
– Not used.
– Not used.
– Not used.
– Assumes changed parameters. Must be set after a
change.
Msg class OffNormal
– Danger (A)
– High (A)
– Low (B)
– Warning (C)
– No Alarm
Defines message class for OffNormal alarms (high limit;
Low limit):
– Plant goes to stop.
– Plant shuts down.
– The impacted plant portion switches off (e.g. the heat
pump).
– Message only.
– No alarm.
Msg class fault
– Danger (A)
– High (A)
– Low (B)
– Warning (C)
– No Alarm
Defines message class for fault alarms (reliability <> 0,
value = invalid):
– Plant goes to stop.
– Plant shuts down.
– The impacted plant portion switches off (e.g. the heat
pump).
– Message only.
– No alarm.
Value selector
– Hardware
– Comm
– Average
– Minimum
– Maximum.
– PreferedHW
– PrefComm
Select valid input value for the application:
– Value on hardware input.
– Value from communications.
– Average from the values on hardware input and from
communications. Alarm triggers (if enabled), if one of
the two values is invalid.
– Lowest value from the values on hardware input and
from communications. Alarm triggers (if enabled), if
one of the two values is invalid.
– Highest value from the values on hardware input and
from communications. Alarm triggers (if enabled), if
one of the two values is invalid.
– Value on hardware input has priority. The value from
communications assumed if invalid. Alarm triggers (if
enabled), if both values are invalid.
– Value from communications has priority. The value
from hardware input assumed if invalid. Alarm trig-
gers (if enabled), if both values are invalid.
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 104

Siemens POL638 Series Specifications

General

Brand	Siemens
Model	POL638 Series
Category	Control Systems
Language	English