Yaskawa Sigma II Series Servo System - Manual (Page 295)

Sigma II User’s Manual Chapter 7: Using the Digital Operator
7 - 21
7.2.1 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 or when the servo amplifier
power is turned OFF.
The data can be cleared using the special “clear alarm traceback mode.” Refer to
7.2.5 Clearing Alarm Traceback Data
for details.
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 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.
Using the Built-in 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
traceback 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.
Alarm Code
See the table of
alarms. Alarm Sequence Number
The higher the number,
the older the alarm data.
Alarm Traceback
Display
SGDM-
MODE/SET DATA/
CHARGE POWER
SERVOPACK
200V YASKAWA
Alarm Traceback
Display