Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 91)

PC NC Maintenance Manual Chapter 4: Troubleshooting
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AL-E2:The parameter setting range is defective.
Error Contents Memory (EEPROM) data exceeded the upper and lower limit value.
Cause and measures
AL-E3:Orientation card mis-match
Error Contents The orientation selection bit and the orientation card do not agree.
Detection Methods Orientation selection bit (C1-39 bit 0) is “0” (encoder system) and
magnetic sensor system orientation card is mounted.
Or,
Orientation selection bit (C-1-31 bit 0) is “1” (magnetic sensor system)
and magnetic sensor system orientation card is not mounted.)
Cause and measures
Cause Measures
The rated speed (C1-26) setting
value is defective. Confirms whether rated speed (C1-26) is in the setting range. Cycle
ON the control power after setting a correct value if the command is
out of the range.
(motor max. speed setting selected by the motor code C1-25 is the
upper limit of rated speed C1-26, therefore, AL-E2 may occur due to
C1-26 upper value changes when motor code was changed.
parameter command is defective. Confirm the each parameter setting value. (Operator's data display
blinks if it is out of setting range)
Control card fault Initialize the parameter drive (brace the setting value).
Exchange unit (exchange control card)
Cause Measures
Orientation card and orientation preference
parameter do not agree. Confirm the orientation card type and orientation
selection signal (C1-39 bit 0)
The orientation card installation is defective. Confirm that there are no loose connectors (13CN).
Orientation card fault Exchange the orientation card with a non-defective
one.