Yaskawa Large Capacity Sigma II Series - Manual (Page 378)

8.2 Troubleshooting
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8.2.4 Warning Displays
The relation between warning displays and warning code outputs are shown in the following
table.
Note: OFF: Output transistor is OFF (high). ON: Output transistor is ON (low).
Table 8.6 Warning Displays and Outputs
Warning
Display
Warning Code Outputs Warning Name Meaning of Warning
ALO1 ALO2 ALO3
A.91 ON OFF OFF Overload This warning occurs before the overload alarms (A.71 or
A.72) occur. If the warning is ignored and operation con-
tinues, an overload alarm may occur.
A.92 OFF ON OFF Regenerative Overload This warning occurs before the regenerative overload
alarm (A.32) occurs. If the warning is ignored and opera-
tion continues, a regenerative overload alarm may occur.
A.93 ON ON OFF Absolute Encoder Battery
Warning This warning occurs when battery voltage for the absolute
encoder has dropped. If the warning is ignored and opera-
tion continues, a regenerative overload alarm may occur.