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Diagnostics displays
The drive detects error situations and reports them using:
•
green and red LED on the body of the drive
•
status LED on the control panel (if a HVAC control panel is
attached to the drive)
•
control panel display (if a HVAC control panel is attached to
the drive)
•
Fault Word and Alarm Word parameter bits (parameters 0305
to 0309). See
The form of the display depends on the severity of the error. You
can specify the severity for many errors by directing the drive to:
•
ignore the error situation
•
report the situation as an alarm
•
report the situation as a fault.
Red – faults
The drive signals that it has detected a severe error, or fault, by:
•
enabling the red LED on the drive (LED is either steady or
flashing)
•
showing the steady red status LED on the control panel (if
attached to the drive)
•
setting an appropriate bit in a Fault Word parameter (0305 to
0307)
•
overriding the control panel display with the display of a fault
code
•
stopping the motor (if it was on).
The fault code on the control panel display is temporary.
Pressing any of the following removes the fault message:
MENU, ENTER, UP key or DOWN key. The message reappears
after a few seconds if the control panel is not touched and the
fault is still active.
370
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Group 03: FB ACTUAL
Diagnostics and maintenance
ACH550-01 User's Manual
SIGNALS.
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