Yaskawa FSP Amplifier - Manual (Page 208)

FSP Amplifier User’s Manual Chapter 7: Using the Panel Operator
7-17
7.2.1. Operation in Alarm Trace-back Mode
The Alarm Trace-back mode can display up to ten alarms that have
occurred, thus making it possible to check what kind of alarms have been
generated.
Alarm trace-back data is not cleared on alarm reset or when the servo
amplifier power is turned OFF.
The data can be cleared using the special “clear alarm trace-back mode.”
Refer to 7.2.5 Clearing Alarm Trace-back Data for details.
Alarm Sequence Number.
The higher a number - the
older the alarm data. Alarm Code.
See table of
alarms.
„ Checking Alarms
Follow the procedure below to determine which alarms have been
generated.
1. Press the MODE/SET key to select “Displaying alarm trace-back data
(Fn000)” in the Auxiliary Function mode.
Alarm Traceback
Display
2. Press the DATA/SHIFT key for a minimum of one second to display
the alarm trace-back data.
3. Press the Up Arrow or Down Arrow key to scroll the alarm sequence
numbers up or down and display information on previous alarms.
The higher the leftmost digit (alarm sequence number), the older the
alarm data.
For descriptions of each alarm code, refer to 9.2 Troubleshooting.
The following are operator-related alarms which are not recorded in the
trace-back data.
Display Description
Digital operator transmission error 1
Digital operator transmission error 2
No error detected.
Note: Alarm trace-back data is not updated when the same alarm occurs repeatedly.