Yaskawa Large Capacity Sigma II Series - Manual (Page 241)

6.2 Applied Operation
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6.2.1 Operation in Alarm Traceback Mode
The alarm traceback mode can display up to ten alarms that have occurred, thus making it
possible to check what kind of alarms have been generated.
The alarm traceback data is not cleared on alarm reset. The alarm traceback data is not
cleared when the SERVOPACK power is turned OFF. This does not adversely affect opera-
tion.
The data can be cleared using the special “clear alarm traceback mode.” Refer to 6.2.5
Clearing Alarm Traceback Data.
„ Checking Alarms
Follow the procedure below to determine which alarms have been generated.
Using the Hand-held Digital Operator
1. Press the DSPL/SET Key to select the “Displaying alarm traceback data (Fn000)” in the
auxiliary function mode.
2. Press the DATA/ENTER Key and the alarm traceback data will be displayed.
3. Press the Up or Down Cursor Key to scroll the alarm sequence numbers up or down and
display information on previous alarms.
The higher the left-hand digit (alarm sequence number), the older the alarm data.
Using the Panel Operator
1. Press the MODE/SET Key to select the “Displaying alarm traceback data (Fn000)” in
the auxiliary function mode.
2. Press the DATA/SHIFT Key for a minimum of one second to display the alarm trace-
back data.
3. Press the Up or Down Cursor Key to scroll the alarm sequence numbers up or down.
The higher the left-hand digit (alarm sequence number), the older the alarm data.
Alarm Code
See the table of alarms.
Alarm Sequence Number
The higher the number,
the older the alarm data.
Alarm Traceback
Display
MODE/SET DATE/
Alarm Traceback
Display