6-8
When U-09 or n178 is selected, a four-digit box is displayed. The three digits from the right show a
fault description code, and the digit on the left shows the order of fault (from one to four). Number 1
represents the latest fault, and 2,3,4, in ascending order of fault occurrence.
• Example
...... 4-digit numbers
: Order of fault (1 to 4)
: Fault description
“---” is displayed if there is no fault.
(Refer to section 6 for details of fault.)
• Viewing fault record
Press the
or key to examine the complete fault record.
• Clearing fault record
Set parameter n001 to “6” to clear the fault record. Display returns to “n001” after completion of 6
setting.
After the fault sequence has been examined, troubleshoot the most recent fault before
entering a Fault Reset command (by Digital Operator STOP/RESET key or external signal
at multi-function input) to prepare the Drive for restart of operation.
Note 1: Parameter initializing (n001=10 or 11) also clears the fault record.
Note 2: Resetting a fault from either the digital operator or multi-function input will not reset the
fault record.
6.2 Displaying Fault Sequence
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STEP OPERATION PROCEDURE DIGITAL DISPLAY
1
Press until the LED is lit
The digital operator display will read “U-01”
2 Press until “U-09” appears on
the display.
3 Press .
4 Press . The display indicates that
this is currently the next
code in the memory register.
5 Continue pressing to display the
other codes in the memory register. After the
last register code is displayed, the sequence
will return to the first code.
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