Compressor Control And Surveillance; Compressor Regulation Set-Up; Control Mode Set-Up - Johnson Controls SABROE UniSAB III Engineering Manual

Compressor control and surveillance

3. Compressor control and surveillance
3.1

Compressor regulation set-up

3.1.1

Control mode set-up

The compressor can be adjusted for different modes of operation. These are found in the picture Setup/
Compr.Control.
When selecting this picture, the cursor will be positioned in the top line. Press
the second line.
Press (enter password if prompted) and select the desired mode of operation with
are the following possibilities:
• Stopped
• Manual
• Auto
• Remote
Stopped means that the compressor is blocked and cannot start.
Manual means that the compressor only operates manually, i.e. it is not possible to switch to a different
mode by means of the Manual Mode switch in the Favourites/Default picture.
The compressor can, however, be started with
creased with F2 /CAP. UP and
Auto means that the compressor runs in local automatic operation according to the form of regulation
chosen (suction pressure, process temperature etc). It is possible to change to Manual with the Manual
Mode switch in the Favourites/Default picture.
Remote means that the compressor works together with one or more compressors in a common Multi-
sab control system. It is possible to switch to Manual with the Manual Mode switch in the Favourites/De-
fault picture.
Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
and stopped with
F3 /CAP. DOWN in the Favourites/Default picture.
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to move the cursor to
and . There
. Capacity is increased/de-