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Section IX - Troubleshooting
Probable Causes:
Corrective Action:
78 Quincy Compressor
®
- QSD™
Network Communication Erratic or Non-Existent:
USE PROPER CABLE.
REFER TO PAGE 35 FOR PROPER CONNECTIONS.
REPLACE CABLE.
REFER TO PAGE 36 FOR PROPER POSITIONING.
CONFIRM TERMINATOR CONNECTED AND PLUGGED IN AS
ILLUSTRATED
ON PAGE 36.
EACH MACHINE MUST HAVE ITS OWN ID LETTER, SEE MACHINE
ID
SETUP DISPLAY ON PAGE 47.
CHECK THE MENU TO ASSURE ALL UNITS ARE OPERATING IN THE
NETWORK MODE.
SYNCHRONIZE DATE AND CLOCKS ON ALL NETWORKED UNITS
FROM
MACHINE ‘A’. TO DO THIS SET THE TIME ON MACHINE
‘A’.
CHECK SCHEDULING AND SEQUENCE ON EACH MACHINE.
CORRECT SEQUENCE AND SCHEDULE FROM MACHINE ‘A’, IF
NEEDED
.
MAXIMUM TOTAL DISTANCE FOR CABLE LENGTH IS 600'.
CHECK TO ASSURE THE POWER CABLE IS PROPERLY CONNECTED
TO
THE POWER SUPPLY AND TO THE MICROPROCESSOR.
REPLACE POWER CABLE.
CHECK SEATING RIBBON CABLE CONNECTIONS. REPLACE IF
FAULTY
.
WRONG COMMUNICATION CABLE
COMMUNICATION CABLE CONNECTED TO
MICROPROCESSOR
INCORRECTLY
DAMAGED COMMUNICATION CABLE
ROCKER SWITCHES SET INCORRECTLY
TERMINATOR CONNECTED INCORRECTLY
MACHINE ID LETTERS NOT CORRECT
UNIT NOT IN THE NETWORK MODE
TIME AND DATE NOT CONSISTENT ON
NETWORKED
UNITS
CONFLICTING INSTRUCTIONS IN THE
SEQUENCE
OR SCHEDULE
CABLE RUN EXCEEDS MAXIMUM
DISTANCE
Erroneous Displays:
POWER CABLE LOOSE OR POOR
CONNECTION
OXIDATION ON POWER CABLE
CONNECTION
.
RIBBON CABLE GOING TO DISPLAY
LOW INCOMING VOLTAGE TO THE POWER
SUPPLY
POWER SUPPLY ADJUSTMENT INCORRECT
Microprocessor Will Not Display Messages: