Yaskawa MP940 Reference Manual - Manual (Page 395)

Troubleshooting MotionSuite™ MP940 Machine Controller Reference Manual
10-42
Alarm Display List
The ON/OFF relationship between the “Alarm Display” and the “Alarm
Code Output” is shown in the table below:
Alarm Display and Alarm Code Output Relationship
Alarm
Display
Alarm Code Output
ALO1 ALO2 ALO3
Servo
Alarm
(ALM)
Output
Alarm Name Alarm Content
A.02 x Parameter
Breakdown*2 Servo amplifier
EEPROM data error
A.03 — — — — Main Circuit Detector
Error Some power circuit
detection data is corrupt.
A.04 — — — — Parameter Setting
Error*2 A user parameter value
has been set outside the
setting range.
A.05 — — — — Mismatch Error The capacities of the
motor and amplifier do
not match.
A.10 Overcurrent or Heat
Sink Overheat*2 Excessive current has
flowed to the IGBT, or
the servo amplifier heat
sink has overheated.
A.30 Regen Error Regen Resistor
Disconnection
Regen Transistor Fault
A.32 — — — — Regen Overload The regen energy
exceeds the capacity of
the regen resistor.
A.40 x Overvoltage The main circuit DC volt-
age is extremely high.
A.41 — — — — Undervoltage The main circuit DC volt-
age is too low.
A.51 Overspeed Servo motor speed is
extremely high.
A.71 Overload (Momentary
Maximum Load) Motor has run for several
seconds or tens of sec-
onds at a torque greatly
exceeding the rated
value.
A.72 — — — — Overload (Continuous
Maximum Load) The servo motor has
operated continuously at
a torque exceeding the
rated value.