SGNe Troubleshooting Guide Page 14
Revision 1.0; Davidson, May 2009. ©Ingersoll Rand Proprietary Information
SGNe
Troubleshooting Guide
Danger
Please utilize extreme caution when performing work within the compressor cabinet.
When opening the cabinet: be certain to wear appropriate PPE (Personal Protective Equipment),
follow lock out-tag out procedures, and ensure all safety procedures are followed
.
Injected Coolant Temp
Displays the reading from temperature sensor 2CTT.
Interstage Pressure
Displays the status of the interstage pressure (2APT) on 2 stage compressors.
This
sensor is only used on 2 stage units and this display is shown as not installed
on single
stage compressors.
Sump Pressure
Displays the reading from pressure sensor 3APT.
Dry Sump Pressure
Displays the reading from pressure sensor 6APT.
Motor Speed
This value is read from the variable speed drive controller and displayed.
Motor Current
This value is read from the variable speed drive controller and displayed
Motor Voltage
This value is read from the variable speed drive controller and displayed.
Input Voltage
This value is read from the variable speed drive controller and displayed.
DC Bus Voltage
This value is read from the variable speed drive controller and displayed.
IGBT U Temperature
This value is read from the variable speed drive controller and displayed.
IGBT V Temperature
This value is read from the variable speed drive controller and displayed.
IGBT W Temperature
This value is read from the variable speed drive controller and displayed.
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