20
INSTALLATION AND OPERATING INSTRUCTIONS PRECISION
®
FILTER CLEANING SYSTEM CONTROLS
The Precision is programmed with system self-diagnostics. Most issues can be resolved by reference to the system messages
and alarms present on the interface and listed in the previous section, ‘Messages and Alarms’. For issues which cannot be
resolved in this way, refer to the table below or contact your system supplier.
General/Startup.
SYMPTOM
CAUSE
RESOLUTION
System does not power up. Power LED
remains off.
Power is not connected to the baseboard.
Power wiring is incorrect.
Power supplied is below the minimum
required to operate the controller.
Ribbon cable to P1 or P2 interface is loose.
Blown fuse.
Defective on-board power supply or interface.
Check connection.
Check wiring to socket is in accordance with
this manual.
Check power supply is within tolerance.
Check and ensure fit to interface and
baseboard is secure.
Replace fuse.
Contact your supplier.
Some or all expansion cards are not detected
on startup.
Cabling between expansion cards and the
baseboard is incorrect.
Broken cabling between expansion cards and
the baseboard.
Damaged fuse on expansion card or
baseboard.
Check connections are in accordance with
this manual.
Replace cable.
Replace fuse.
Some or all connected solenoids are not
detected on startup.
Cabling between expansion cards and the
baseboard is incorrect.
Broken cabling between expansion cards and
the baseboard.
The common terminals between each bank
of solenoids (or between solenoids) are not
linked or returned to the common terminal
on the relevant baseboard or expansion card.
The solenoid active terminal is not properly
linked to its relevant system output terminal.
Damaged fuse on expansion card or
baseboard.
Check connections are in accordance with
this manual.
Replace the cable.
Ensure commons are linked.
Check connections and repair if necessary.
Replace fuse.
TROUBLESHOOTING
