SGNe Troubleshooting Guide Page 12
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
.
Scheduled Start
This option will cause the unit to start on the scheduled start day, at the time stored in
this set point. To disable this option, set the value of scheduled start equal to the value
of scheduled stop
Scheduled Stop Day
This option is the selection for the day that a scheduled stop will take place. The selec-
tions are: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Daily
(Su – Sa), Weekdays (M – F), or Weekends.
This option set point will work with the scheduled stop set point.
Scheduled Stop
This option will cause the unit to stop on the scheduled stop day (3.3.3.10), at the time
stored in this set point. To disable this option, set the value of scheduled stop equal to
the value of scheduled start
Modbus Protocol
The Modbus communications will be disabled if this is set to OFF. If set to ON or ICU,
Modbus communications will be enabled using RTU protocol. If set to ICU, the Intelli-
sys will call out if an alarm or warning occurs. See the Modbus manual for information
on RTU protocol.
Modbus Address
The Modbus address can be set from 1 to 247.
Sensor Calibration
Pressure transducers are calibrated by using the SENSOR CALIBRATION screen.
Calibration can only take place when the unit is not running. The following sensors are
displayed for calibration (chosen by using the UP and DOWN arrow buttons):
SENSOR CALIBRATION Items
Sensor 4APT (Package Discharge)
Sensor 3APT (Wet Side Sump)
Sensor 6APT (Dry Side Sump)
Sensor 2APT (Interstage – 2 Stage Units Only)
To Next Page
Loading...
