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Controller Fault - Error has been detected. See fault code list for
details
8 Error Codes
If an error condition is detected that prevents the tool from running, a fault code will appear on
the LED display. Any active faults are also displayed on GUI RUN screen. Fault history can be
viewed in the Controller Error Log.
Gen4 Common Hardware Fault Codes
CODE
Fault Type
Description
Possible Causes
FH17
1.8vdc MB out of
tolerance
Main board 1.8 bus
voltage exceeds
electrical limits
•
Faulty Controller main board
or other Controller electronics
FH18
1.8vdc SOM out of
tolerance
System on Module 1.8 bus
voltage exceeds
electrical limits
•
Faulty Controller main board
or other Controller electronics
FH19
3.3vdc out of
tolerance
Main board 3.3 bus
voltage exceeds
electrical limits
•
Faulty Controller main board
or other Controller electronics
FH20
5vdc out of
tolerance
5 Volt bus voltage out of
range
•
Faulty power supply or wiring
•
Faulty Controller main board
or other Controller electronics
FH21
9vdc out of
tolerance
9 Volt bus voltage out of
range
•
Faulty power supply or wiring
•
Faulty Controller main board
or other Controller electronics
•
Faulty tool cable
•
Faulty tool electronics or
wiring
FH22
24 volt level low
24 Volt IO power not
detected
•
Faulty power supply or wiring
•
Short or other problem with
external connections to the
24Volt IO port.
FH23
Controller temp
high
Controller’s internal
temperature exceeds limit
•
Ambient air temperature
exceeds rating of Controller
FH24
+15vdc out of
tolerance
+15 Volt bus voltage out
of range
•
Faulty power supply or wiring
•
Faulty Controller main board
or other Controller electronics
•
Faulty tool cable
•
Faulty tool electronics or
wiring
