SGNe Troubleshooting Guide Page 17
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
.
Service Menu 33
The following are set points that are only set by IR service. These set points are ac-
cessed by entering a code number into the service menu set point.
*- The maximum speed maximum limit will change whenever the compressor type or
target pressure is changed. The above is the initialization value.
Idle Mode
If this is set to ON, the compressor will only run at the slowest (65 psi) minimum speed
with the blowdown valve open. A ‘Replace Coolant Filter’ Alarm will be issued when
this
mode is set to ON. This alarm is a reminder to only operate in this mode if a new
coolant filter is installed. Once the alarm is reset, the unit can be started in idle mode.
When this is turned OFF, the compressor will automatically return to VSD operation.
If
idle mode is not turned Off by IR service, it will automatically set itself to Off after 10
minutes of operation and the compressor will stop at that time. This will only be used
by IR service.
SERVICE MENU Default MIN. MAX. STEP UNIT
Idle Mode Off Off On --- ---
Proportional Gain 30 0 999 1 ---
Integral Gain 600 0 999 1 ---
Derivative Gain 1 0 10 1 ---
Maximum Speed 1810 1400 1810* 50 RPM
Minimum Speed 914 800 1300 50 RPM
Skip Speed Point 1200 -5400 5400 1 RPM
Skip Speed Band 170 0 255 1 RPM
Fixed Speed Control Off Off On --- ---
Lowest Blower Percentage 20 10 50 1 %
Warm Up Temp 180 170 190 1 Deg
Warm Up Time 5 3 10 1 Min
Variable Speed Delay 0 0 60 1 Sec
Remote Sensor Offset 0 -5 5 1 PSI
Remote Press Diff Delay 10 3 60 1 Sec
Memory Test Result 0 0 2 --- ---
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