Yaskawa MP940 Reference Manual - Manual (Page 363)

Troubleshooting MotionSuite™ MP940 Machine Controller Reference Manual
10-10
A.32
A.32 is the alarm display for regenerative overload. The alarm output appears
below.
Note: indicates the output transistor is ON; the x indicates the output transistor is OFF (alarm
state).
Status when Alarm Occurred
Alarm Output
Alarm Code Output ALM Output
ALO1 ALO2 ALO3
x x
Cause Remedy
A Regen power exceeds tolerances. Use a regenerative resistor matched
to the regen power capacity.
B A regenerative resistor is used, but an alarm
results no matter how little the regenerative
resistor temperature rises. Incorrect setting for user parameter
Pn600. Reset.
Alarm occrs during motor
operation
A, B