Alarm Setup - Danfoss ECL 2000 User Manual

Service Settings

10.4.3 Alarm Setup

Limits
P3
66
The pictures under the Alarm Setup menu item determine the conditions that will
cause the controller to report an alarm. Alarms can be generated based on measure-
ment data from all relevant sensors, i.e. depending on the selected application, there
are a number of Alarm Setup pictures.
These settings determine the levels at which the alarm status changes. This is illus-
trated in Figure 8 on page 65.
Display text Parameter
Max
High
Low
Min
In some applications, the settings High and Low cannot be modified directly but are
assigned one common value. If you try to modify High or Low, the ECL 2000 dis-
plays a picture allowing you to specify an interval around the common High/Low
setting. The upper and lower limits of this interval will function as the High and Low
alarm limit, respectively.
The column P3 is only displayed if the output P3 is set up as alarm output (see
page 33). The setting in this column determines whether the output P3 should react to
the corresponding alarm limit.
Note:
Using P3 as an alarm output is only possible in some applications.
Display text Parameter
Relay output
P3
P3
EY.65.H4.02
Default value, Description
range
Default value: When the measured temperature is above
160 °C
Max, the alarm status has the value
"Max range"
Range:
0-250 °C
Default value: When the temperature is above High but
160 °C
below Max, the alarm status has the
value "High limit"
Range:
0-250 °C
Default value:
When the temperature lies between Low
–60 °C and High, the alarm status has the value
"Normal"
Range:
–100-100 °C
Default value: When the temperature is between Min
–60 °C and Low, the alarm status has the value
"Low Limit". When the temperature lies
Range:
below Min, the alarm status is "Min
–100-100 °C
range"
Default value, Description
range
Default value: See the example below
OFF
Range:
OFF, ON