The Turbo Air® 3000 Centrifugal Compressor Compressor Handbook

The Turbo Air 3000 Centrifugal Compressor Operator’s Manual
Alarm and Trip Functions
If compressor-operating parameters deviate from normal tolerances, the Vantage Control System will
activate one of two levels of compressor protection.
6—6
Alarm. An Alarm condition is a warning about a compressor operating condition that is
outside of normal operating limits. The Alarm is intended to alert the operator to a condition that
merits investigation, but does not present an immediate danger, or prevent the compressor from
operating.
Trip. A Trip condition is a protective measure initiated by the controller to safeguard the
compressor. A compressor Trip condition requires immediate troubleshooting and correction
before the compressor can be safely put back into operation.
In either instance, when an abnormal condition occurs, the Vantage Control Panel will automatically
revert to the Protection History Screen where the most recent event will be positioned at the top of
the screen indicating date, time, type, description, instrument tag number, and data involved in the
event.
Operator Response to an Alarm or Trip Condition
In the case of a compressor Alarm or Trip condition, the operator should respond as follows:
1. Identify and assess the nature of the Alarm or Trip message that appears on the control panel
display.
2. Press the Home, View, History, or Network key to acknowledge the alarm and to turn off any
external devices installed to alert the operator. The source of the alarm is maintained in the
Protect History file for future review.
3. Press the View key and use the Up or Down keys to select the Protection (Running) screen.
4. Press the Enter to open the screen. Review the current monitoring point information and its
relationship to the Alarm and Trip set points.
5. Analyze the information, and then take any appropriate action(s) as required to prevent further
deterioration of the Alarm condition to a dangerous level. In the case of a Trip condition, it is
necessary to correct the cause of the Trip before attempting to restart the compressor.
Example
The next sample screen shows a representative Alarm message, in this instance signaling abnormal oil
pressure.
Operator Response
With the Protection History screen being displayed on the control panel, the operator should:
1. Take note of the actual oil pressure as displayed under the Data column.
2. Press the View key and use the Up or Down keys to select the Protection (Running) screen.