Shutdown And Alarm Acknowledgement - Johnson Controls SABROE Unisab III Control Engineering Manual

Manual loading or unloading of capacity
F2
In manual mode
F2
ing increases capacity and pressing
tion must be carried 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
. Compressor 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.
Manual stop
You can stop the compressor immediately by pressing
will be cap. slide down or pause depending on compressor type. The light diode above the
start key will be off.
For SAB 109, 133 and 159 you will experience a time delay from pressing the stop key and
until the compressor stops. This is normal and the reason is that the controller closes the au-
tomatic stop valve before the compressor motor is stopped, which takes 40 seconds.

1.2.9 Shutdown and alarm acknowledgement

A compressor shutdown is acknowledged by pressing
no longer present the shutdown message will disappear from the shutdown queue. A shut-
down stops the compressor immediately and is indicated by quick red flashes in the light di-
ode above the start key. An acknowledged shutdown where the shutdown cause is still
present is indicated by slow red flashes in the light diode.
A compressor alarm is automatically acknowledged when the alarm cause is no longer
present and the alarm message will disappear from the alarm queue. An alarm does not stop
the compressor. It is indicated by quick yellow flashes in the light diode above the start key.
F3
and can be used for manual loading or unloading of capacity. Press-
F3
decreases capacity. All manual compressor opera-
. Compressor status in the info bar
F4
/RESET. If the cause of shutdown is
Engineering manual - Unisab III 1.10
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Unisab III control
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