Section VIII - Power$ync IIOperation

FLUID FILTER CLOGGED

The control monitors the fluid filter element condition by reading the differential pressure across the element. Should a high differential be detected, this message will be logged. This will not shut down the compressor.

FLUID PRESSURE TOO LOW

The control will log shutdowns that occurred because of fluid pressure dropping below 10 psi., or the set trip point (typically 15 psi).

STG 1 PRESSURE TOO HIGH

This message will be logged if the control sees that the interstage pressure has risen above the trip point.

STG 2 PRESS DIFF HIGH

The control will log shutdowns that occurred because of a high differential pressure across the stage two airend. This can occur if the interstage pressure is low (10 psi or less) and the discharge of Stage two is normal (80 psi or more). Under these circumstances, high temperatures may be produced in the airend.

FLASH CHECKSUM ERROR

This message will be posted it the periodic check of the flash memory sees a change from the stored value. There is a possibility that the main program may have an error internally.

STAGE _ MUFFLER PLUGGED

The control will log this warning message when it detects that the unloaded pressure in the discharge of stage one or stage two is above 5 psig. This generally indicates that there may be a problem with the blowdown mufflers, creating high back pressure.

EMPTY OR NOT USED

The control log has no entries at that point.

INVALID CODE OR UNKNOWN

This indication means that the controller has found an entry in the log that does not match any available in it’s table. This may occur after a software upgrade, or if U19 has faulty entries.

Quincy Compressor® - QSD™

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Quinny 65040-AB manual Control log has no entries at that point