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Section VIII - Power$ync II
™
Operation
Quincy Compressor
®
- QSD™ 43
Start-up Displays
Once the diagnostic program has determined that the
compressor is ready to begin operation, the following
display will prompt the user to start the machine:
STG 1 OUT TEMP______STG 2 IN TEMP______
2 STAGE VERSION 1.04
PRESS ENTER KEY TO SELECT MENU OR
PRESS START BUTTON TO START COMPRESSOR
Each compressor is shipped from the factory with
the start-up configuration that was noted on the
order. If this configuration is satisfactory, press
START to begin compressor operation. Should a
change in the configuration be required, or should
you desire to check that the proper configuration
has been entered into the controller, press ENTER.
At this menu, press the button sequence F1-
DOWN-UP-ENTER to lock out all adjustment
menus. With the control locked, all operational
displays will be functional but access to adjustment
menus will be stopped. When pressing this
sequence of buttons, a message will appear
warning that you have pressed the wrong button.
NOTICE
THE KEYBOARD IS SECURED AGAINST
POSSIBLE UNINTENDED ALTERATIONS
SEE MANUAL TO UNLOCK THIS FUNCTION
This is aimed at discouraging people from finding
the combination to the lock by accident. Pressing
the same sequence again will unlock the
adjustment displays and menus. The purpose of
this lockout feature is to prevent unauthorized
personnel from making changes to any setting on
the compressor.
The UP or DOWN arrow keys will access the auxiliary
pressure sensor displays:
ADDITIONAL SENSORS
STG 1 OUT P______STG 2 OUT P______
FLUID PRESSURE______
UNITS: ______STG 2 OUT TEMP______
This display is of the pressure readings for STAGE 1
OUT, STAGE 2 OUT and the FLUID PRESSURE. These
pressures provide verification of the normal operation of
the compressor.
Operational Displays
When START is pressed, one of three displays should
appear, depending on the mode of operation selected. If,
however, the compressor has been manually stopped and
an immediate restart is attempted, one of the following
messages may appear:
WARNING COMPRESSOR IS STARTING
COMPRESSOR WILL START WHEN THE STAGE 2
DISCHARGE PRESSURE IS UNDER 10 PSI
STAGE 2 DISCHARGE PRES ________
To avoid starting against a load, the Power$ync
II
™
controller monitors the pressure in the Stage 2
discharge pipe. It will not allow the compressor
to start until the pressure has been relieved (down
to 10 PSIG) through the blowdown valve. When
the pressure reaches that level, the compressor will
restart without further action.
A starting display confirms that the compressor is starting
and has all valves open:
STG 1 OUT TEMP______STG 2 IN TEMP______
COMPRESSOR IS STARTING
HOURS______STG 2 OUT TEMP______
Power$ync II
™
checks for the proper rotation of the
compressor at start-up. If the compressor is rotating in
the wrong direction, the controller will shut the machine
down and display the following message:
NOTICE
COMPRESSOR HAS SHUT DOWN
**NOTICE** POSSIBLE REVERSE ROTATION
REFER TO YOUR SERVICE MANUAL
Power$ync II
™
checks for reverse rotation by
watching the pressure rise in the STAGE 2
discharge. It will shut the compressor down if the
STAGE 2 discharge pressure does not reach 8
PSIG within fifteen seconds of the time that the
start button is pushed. If this message is displayed,
disconnect and lockout and tag-out the power
supply to the compressor. Remove two of the three
leads supplying power to the starter. Reverse their
position and reinstall them. Restore power to the
compressor and begin the start-up procedure
again.