The Turbo Air® 3000 Centrifugal Compressor Compressor Handbook

Standard and Optional Measurements
Standard:
Main Drive Motor Current
System Air Pressure
Compressor Discharge Air Pressure
First Stage Vibration
Oil Pressure
Oil Temperature
Final Stage Inlet Air Temperature
Optional:
Second Stage Vibration
Third Stage Vibration (three stage units only)
Second Stage Inlet Air Temperature (three stage units only)
Inlet Air Filter Pressure Drop
Oil Filter Pressure Drop
Oil Reservoir Level
Compressor Discharge Air Temperature
Mass Flow Measurement
Multi-channel Temperature Monitor (motor bearing & stator windings)
Table C—1 Standard and Optional Measurements
Vantage Control System Logic
Alarm and Trip Conditions
When operating conditions deviate from any of the preset setpoints, when a compressor or auxiliary
device fails, or when compressor performance becomes degraded, the control system will activate one
of two types of compressor safety mechanisms. The mechanism activated depends on the degree of
deviation, one being a warning signal and the other involving protective action.
The two compressor safety mechanisms are:
· Alarm. When an Alarm condition occurs, all compressor systems will continue operation. However,
the control panel display will record the Alarm to alert the operator of an operating condition that
requires some attention.
· Trip. When a Trip condition occurs, the Vantage Control System will initiate a complete compressor
shutdown in order to protect vital components. This will occur whenever one or more operating
conditions exceed the predetermined levels governing operating safety.
The Vantage Control System records all operating conditions current during both Trip and Alarm
conditions and shows them on the control panel display. As part of the control panel Diagnostics
function, the operator may also call up similar information for the four most recent Trip conditions or
compressor shutdowns. Trip messages (from most to least recent) are available for review.
C—15