DuraBlue II Customer Product Manual - 第77页

Setup Key Left display and scroll key Scrolling through the fault log Operation 4-15 Part 1126931_01  2018 Nordson Corporation Reviewing the Fault Log 1. Press and hold the Setup key. The automatic scan stops and operat…

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Clear/Reset key
Heater key
Operation
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2018 Nordson Corporation
F4 Fault
When the melter detects an F4 fault:
1. The ready LED turns off and the red fault LED turns on.
2. All of the component key LEDs (tank, hose, and applicator) turn off.
3. The right display indicates F4.
4. The left display indicates a sub‐code. Sub‐codes classify the fault as
being fatal or nonfatal. The affect on the melter of each of these two
classes of F4 faults is:
Fatal—The fault LED turns on and stays on and the melter stops
functioning completely.
Nonfatal—The fault LED turns on for five seconds, but the heaters and
pump continue to operate normally. Nonfatal faults affect the internal
clock.
5. The melter records the fault in the fault log. Refer to Monitor Melter Faults
in this section.
Resetting the melter
1. Diagnose and correct the fault condition. Refer to Section 6,
Troubleshooting, for information about diagnosing and correcting fault
conditions.
2. Return the melter to the automatic scan mode by pressing the Setup key
twice.
3. Press the Clear/Reset key.
4. Press the Heater key to turn on the heaters.
If F4 appears in the right display when you press the clock key, the internal clock function
has failed.
Setup Key
Left display and scroll key
Scrolling through the fault log
Operation
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Part 1126931_01
2018 Nordson Corporation
Reviewing the Fault Log
1. Press and hold the Setup key.
The automatic scan stops and operating Parameter 1 appears in the
left display.
2. Scroll the left display to Parameter 2 (the fault log).
The right display indicates the last fault that occurred as follows:
If the last fault was an F1, F2, or F3 fault, then the LED on the affected
component key turns yellow.
If the last fault to occur was an F4 fault, then the LEDs on all of
the component keys turn off.
The right display indicates the log entry for the last fault to
occur. Table 4‐2 provides the meaning of each digit in the log
entry. Following the table are two example fault log entries.
3. Press the right‐display scroll key to review each of the remaining nine log
entries. Each press of the scroll key displays a progressively older log
entry.
NOTE: The fault log only stores the last ten faults. After ten faults
occur, the existing log entries are overwritten, beginning with the oldest
entry, by the eleventh and following log entries.
4. Press the Setup key to return to the automatic scan mode.
Table 4‐2 Fault Log
First Digit Second and Third
Digits
Fourth Digit
Component:
‐ F
Type of fault:
1 = Tank or hose/applicator 1 0 = Unused log entry
2 = Pump or hose/applicator 2 1 = RTD (open or short)
3 = Hose 3 or applicator 3 2 = Component under temperature
4 = Hose 4 or applicator 4 3 = Component over temperature
5 = Hose 5 or applicator 5
4 = Processor or electrical failure
6 = Hose 6 or applicator 6
Operation
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Fault Log examples
Example 1:
An unused log entry.
Example 2:
If the LED on the tank key were on, this log entry
would indicate that the tank is under temperature. If the LED on the hose key
were on, this log entry would indicate that hose 1 is under temperature.
To view the number of heater hours that have
elapsed since a log entry was created,
simultaneously press both of the right‐display
scroll keys. The hours are indicated in the right
display.
The melter will return to the automatic scan mode
if the fault log is left open for a period of two
minutes without any key being pressed.
When an F1 fault is the result of a
hose/applicator pair being disconnected from the
melter, two fault log entries are created. The first
entry is for the applicator and the second entry is
for the hose.