Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
35/346
1.2.8
Manual and auto operation
Select compressor control mode
Compressor control mode, i. e.
Stopped
,
Manual
,
Auto
or
Remote
operation, is selected in the
Setup
menu in the
Compr Control
picture.
Alternate between manual and auto/remote control mode
In the
Default
or any
User favourites
picture (if set up by the user) you may set
Manual Mode
to “Yes”, i.
e. switch from
remote
or
auto
to
manual
operation. You can always switch between
Manual
and
Auto/
Remote
– even during operation.
In
Manual
operation, the compressor operation (i.e. starting/stopping and regulating capacity) is entirely
controlled by the operator overruled only by the built-in capacity limiters and the alarm/shutdown super-
vision. In
Auto
operation, the compressor operation is controlled by the built-in regulator - depending on
its configuration during commissioning. In
Remote
operation, the compressor operation can be con-
trolled by a remote regulator/sequence controller - depending on configuration during commissioning.
The built-in capacity limiters and the alarm/shutdown supervision are also active in
Auto
and
Remote
.
Manual loading or unloading of capacity
In
manual
mode
and
can be used for manual loading or unloading of capacity. Pressing
in-
creases capacity and pressing
decreases capacity. All manual compressor operation must be car-
ried out from one of the seven favourite pictures.
Manual start
In
manual
mode and if the compressor is ready you can start the compressor by pressing
. Compres-
sor status in the info bar will be
prelubrication
,
starting
or
running
depending on compressor type. During
the starting period the light diode above the start key will flash green. After feedback from the motor
starter, the light diode changes to a steady green light.
F2
F3
F2
F3
Summary of Contents for SABROE Unisab III Control
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