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Section 4
TROUBLESHOOTING
Table 4-1A Analog Alarms (Flooded Screw Compressors Less Than 200 psi)
Start Run
Sensor Type Limit Delay Delay Check (*) Comment
P_1 High Inhibit 5 0 0 At Start High sump psi at start
P_1 Low Fault 5 5 0 When Running Immediate Fault
P_1 High Fault 500 0 0 Constantly Sensor failure fault
P_2 High Fault 500 0 0 Constantly Sensor failure fault
P_3 High Fault 500 0 0 Constantly Sensor failure fault
P_4 High Fault 500 0 0 Constantly Sensor failure fault
T_1 Low Fault -40 0 0 Constantly Sensor failure fault
T_1 High Warn 225 5 30 Constantly Delayed for temp spikes
T_1 High Fault 235 5 30 Constantly Delayed for temp spikes
T_1 High Warn 245 0 0 Constantly Immediate Warning
T_1 High Fault 255 0 0 Constantly Immediate Fault
T_1 High Fault 500 0 0 Constantly Sensor failure fault
T_2 Low Fault -40 0 0 Constantly Sensor failure fault
T_2 High Warn 225 5 30 Constantly Delayed for temp spikes
T_2 High Fault 235 5 30 Constantly Delayed for temp spikes
T_3 Low Warn -40 0 0 Constantly Sensor failure warning
T_3 High Warn 500 0 0 Constantly Sensor failure warning
T_4 Low Fault -40 0 0 Constantly Sensor failure fault
T_4 High Fault 500 0 0 Constantly Sensor failure fault
(*) In the ‘Check’ column above, alarms are checked:
Constantly - if machine running or stopped
When Running - if machine is running
If Enabled - if parameter is non-zero
At Start - will not allow start if alarm present
Over Min Psi - machine is loaded and above min load pressure