YASKAWA SGM-A3 User Manual page 143

APPLICATIONS OF Σ-SERIES PRODUCTS
3.7.1 Using Servo Alarm Output and Alarm Code Output cont.
3
130
4) Relationship between Alarm Display and Alarm Code Output
Alarm Display and Alarm Code Output:
Alarm Code Output
Alarm Alarm
Display
ALO1 ALO2 ALO3
¢
○
¢
○
○
¢
○
○
¢
¢
○
○ : Output transistor is ON
¢ : Output transistor is OFF
* : Displays an alarm category number.
For details, refer to Appendix E List of Alarm Displays.
Servo
Alarm Alarm
Alarm Type Alarm Type
(ALM+)
Output
User
constant
¢ ¢ ¢
error
Overcurrent Overcurrent flowed thorough
¢ ¢ ¢
Fuse blown
○
¢ ¢
Regenera-
○
tive error
¢ ¢
Position
error pulse
○
¢ ¢
overflow
Overvoltage
or undervol-
○
¢ ¢
tage
Overspeed
○
¢ ¢
Overload
○ ○
¢
Absolute
encoder er-
¢ ¢ ¢
ror
Reference
input read
¢ ¢ ¢
error
Overrun
Disconnec-
tion of PG
○
¢ ¢
signal line
Alarm Description Alarm Description
An absolute encoder error oc-
curred or user constant is
faulty.
the main circuit.
Servopack overheated.
Fuse of main circuit power
supply is blown.
Failure of regenerative circuit
The number of pulses in error
counter has exceeded the
preset value.
Main circuit DC voltage is
overvoltage or undervoltage.
Motor speed has exceeded
the 110% of the maximum al-
lowable speed.
Motor and Servopack are
overloaded.
Absolute encoder is faulty.
Failure of analog voltage ref-
erence input read
Overrun occurred due to mo-
tor or encoder signal wiring
faults.
Encoder signal line is discon-
nected.