Note: The output may be deactivated from the time when the limiter is no longer ac-
tive and until the compressor again reaches 100% capacity.
3.5.7 User input
In the Configuration/External Input menu the following picture appears:
Place the cursor on Function. Press and with and choose between:
• Not used
• Suction pressure setpoint
• Process out setpoint
• Discharge pressure setpoint
• Hot water setpoint
• Capacity setpoint
• External input signal
This function is connected to an analog input. See wiring diagrams.
Explanation
• Not used
The input signal is not used and alarm/shutdown supervision for this input is disabled.
• Suction pressure set point
The signal is used as a set point reference for the suction pressure regulator.
• Process out temp. (Brine) set point
The signal is used as a set point reference for the process out temperature regulator.
• Discharge pressure set point
The signal is used as a set point reference for the discharge pressure regulator.
• Hot water set point
The signal is used as a set point reference for the hot water temperature regulator.
• Capacity set point
The signal is used as a set point reference for the capacity regulator.
• User 1 (External) input signal
The signal is used as input signal for the User 1 (External) regulator.
See also subsection 3.1.10. User input regulator (Ext. input) for a more comprehensive ex-
planation and set up examples of User input 1.
Compressor control and surveillance
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Engineering manual - Unisab III 1.10
001930 en 2014.09
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