Johnson Controls SABROE Unisab III Control, Engineering Manual

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Engineering manual - UniSAB III 1.10.8
001930 en 2021.06
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UniSAB III control
1.2 Operating the UniSAB III control
1.2.1 Start-up
On delivery all electrical components in the compressor are connected to UniSAB III. On site it is only
necessary to add the correct supply voltage from the local installations. The electric wiring must be car-
ried out according to the wiring diagrams for UniSAB III at the end of this manual.
Note in particular that
• no outside voltage must be applied to the digital inputs of UniSAB III.
• the supply voltage must be between 85 VAC and 250 VAC.
Before any voltage is applied to UniSAB III, the emergency stop switch must be activated . When
voltage is applied to UniSAB III, the default picture shown below will appear in the display and UniSAB
III will be ready for operation.
Fig. 1: Default picture
As UniSAB III has been programmed with values for alarm limits, shutdown limits, set points, etc., the
compressor can be started immediately.
However, some of the values must be adapted to the actual operating situation. It is also recommended
to read this manual carefully to acquire a thorough knowledge of how to operate UniSAB III.
UniSAB III is operated exclusively by means of the front panel keys. Reading of operating conditions as
well as changing limiting values and set points is carried out via the display. The display contains a num-
ber of different pictures.
The control panel is usually closed and locked with two screws at the bottom of the front panel. When
turning the screws, the front panel is loosened and can be lifted to an open position, yet still fastened to
the cabinet. See Fig. 2.