Siemens S120 PM240-2 Manual page 68

Anomaly
F30015
Power unit: Phase failure motor cable
A30016
Power unit: Load supply switched out
12-4
permissible value

Line supply infeed failed or
interrupted

Line phase interrupted
Cause
A phase failure in the motor feeder
cable was detected

The motor is correctly connected,
however the closed-speed control
is instable and therefore an
oscillating torque is
generated

The DC link voltage is too low

Check the line supply phases.

Check the line supply voltage
setting (p0210)
Solution

Check the motor feeder cables

Check the speed controller
settings

Switch on load supply

Check the line supply if
necessary.
Siemens PM240-2_EN_rev00-30082019.docx