Operation
4-4
Part 1061253B
E 2006 Nordson Corporation
Fault Messages
When a fault is detected, the unit shuts down the
high voltage, turns on the FAULT relay output, and
displays a fault message. Table 4-3 lists the fault
messages.
Table 4-3 Fault Messages
Message Fault Description
F PRSW Pressure Switch Insufficient or no air pressure in the lamphead.
F LOCK Interlock External interlock input is open.
F OTMP Over Temperature Transformer thermal switch(es) open. May be caused by
insufficient air flow through power supply cabinet.
F STOP STOP STOP interlock input is open.
F CABL Cable Interlock
Open
The high-voltage cable and/or the low-voltage cable from the
power supply to the lamphead is disconnected or open.
F RF RF Interlock RF detector is disconnected or has sensed high levels of RF
from the lamphead.
F POWR Power Light output or magnetron current has been sensed when the
power supply is in the Off mode.
F LOUT Lamp Out There was insufficient output from the light detector when the
power supply energized the magnetrons in the Lamp On
mode.
F NETW Network The control board can no longer communicate with a
previously detected system.
F IBAL Magnetron
Current Imbalance
The magnetrons are turned on (LAMPON) and the magnetron
currents differ by more than 100 ma for a period exceeding
about 600 ms.
F OVER Magnetron Over
Current
Either magnetron current exceeds 950 ma in the LAMPON
mode.
F FUSE Open Filament
Transformer
Circuit
There is no current detected on the filament transformer circuit
when the power supply is turned on.
F MAG Excessive current High current has been detected on high-voltage circuit
Resetting a Fault
Operating in the Local Mode: Press the Off
button to clear a fault once it has been corrected.
Operating in the Remote Mode: Open and close
the off/reset contact to reset a fault once it has
been corrected.
NOTE: Once the fault has been corrected a
remote unit can be reset by either the front panel of
the master unit or a host controlling the master unit.
