Yaskawa LEGEND Digital Torque Amplifier - Manual (Page 67)

5.3 Alarms
56
＊ Reset at S – ON signal ON.
# LED will blink at warning before alarm.
Encoder
Communication Error
Communication error between encoder and
digital torque amplifier.
Communication between the encoder and
digital torque amplifier failed three times in
succession.
Runaway Detection Motor runaway * .
Encoder Failure
Checksum error in EEPROM within
encoder
Error in the number of pulses in encoder
rotation
Error in EEPROM within encoder
Error in communication data between
encoder and digital torque amplifier.
Main Circuit Power
Error
DC input with AC input settings for main
circuit power or AC input with DC input
settings.
Main circuit power was frequently tuned
ON/OFF * .
Combination Error
Improper combination of motor and digital
torque amplifier capacities.
Improper motor combination.
Digital Torque
Amplifier Fault
Failure of A/D converter used in command
input
Servo amplifier system error
Linear Motor Scale
Polarity Error
Polarity setting of the linear motor scale A,
B-phases is reversed.
Alarm
Display
Alarm Name Content