02/04/2013
PM 2946 7002 09
Page 35 of 39
31 Activate load/unload remote pressure sensing
Starting from the Main screen:
1.
Press Scroll button (12) until <
P.14
> is shown.
2.
Press
Enter
button (13).
The function of this screen is to activate the remote load/unload relay. To be able to activate this remote Load/Unload
functionality, a physical digital input with function Load/Unload is required.
Once this parameter is activated, the physical digital input can be used to switch the compressor between Load and Unload.
32 Calling up/modifying protection settings
32.1 Available protections
A number of protection settings are provided. The protection screens are labelled <Pr.>. The pictograph shown with the
protection screen indicates the purpose of the protection.
Possible combinations are <Pr.> followed by a number and one of the next pictographs:
Pictograph
Designation
<Pr.> shown with the pressure pictograph shows the pressure protections.
<Pr.> shown with the element outlet temperature pictograph shows the element outlet temperature
protections.
<Pr.> shown with the dewpoint temperature pictograph shows the dewpoint temperature protections.
<Pr.> shown with the ambient temperature pictograph shows the ambient temperature protections.
Following protection settings are available:
•
A low warning level, shown on the display as <
AL-L
>.
•
A high warning level, shown on the display as <
AL-H
>.
•
A low shut-down level, shown on the display as <
Sd-L
>.
•
A high shut-down level, shown on the display as <
Sd-H
>.
•
Service level shown on the display as <
SE-L
>.
•
Service level shown on the display as <
SE-H
>.
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