Yaskawa MP940 Reference Manual - Manual (Page 396)

MotionSuite™ MP940 Machine Controller Reference Manual Troubleshooting
10-43
A.73 — — — — DB Overload The rotational energy
has exceeded the
capacity of the dynamic
braking resistor during
the dynamic braking
operation.
A.74 — — — — Surge Resistance Over-
load The main circuit power
has been frequently
turned ON/OFF.
A.7A — — — — Heat Sink Overheat*1 The heat sink of the
servo amplifier has over-
heated.
A.81 x Encoder Backup
Alarm*2 All encoder power is
down. Position data has
been cleared.
A.82 — — — — Encoder
Sum-check Alarm*2 The results of the
encoder memory sum
check are invalid.
A.83 — — — — Encoder Battery Alarm The voltage of the abso-
lute encoder backup bat-
tery has dropped.
A.84 — — — — Encoder Absolute
Alarm*2 The absolute data
received is faulty.
A.85 — — — — Encoder Overspeed The encoder was rotated
at an excessively high
speed at power ON.
A.86 — — — — Encoder Overheat The temperature within
the encoder is too high.
A.9F — — — — Option Warning A warning has been
issued in an option
(MP940).
A.b1 — — — — Speed Reference A/D
Error The speed reference A/
D converter is faulty.
A.b2 — — — — Torque Reference A/D
Error The torque reference A/
D converter is faulty.
A.bF — — — — System Alarm*2 —
A.C1 ¸ › _ Servo Overrun
Detected
Servo motor overrun has
occurred.
A.C8 — — — — Encoder CLEAR Error
Multi-turn Limit Setting
Error The multi-turn number of
the absolute encoder
has been cleared, or the
settings are incorrect.
Alarm Display and Alarm Code Output Relationship (Continued)
Alarm
Display
Alarm Code Output
ALO1 ALO2 ALO3
Servo
Alarm
(ALM)
Output
Alarm Name Alarm Content