Siemens SINAMICS G120C Operating Instructions Manual page 376

Alarms, faults and system messages
9.5 List of alarms and faults
Number Cause
A05000 Power Module overtemperature
A05001
A05002
A05004
A05006
F06310 Supply voltage (p0210) incorrect‐
ly parameterized
F07011 Motor overtemperature
A07012 I2t motor model overtemperature Check and if necessary reduce the motor load.
A07015 Motor temperature sensor alarm
F07016 Motor temperature sensor fault
F07086 Switching over units: Parameter
F07088 limit violation
F07320 Automatic restart aborted
A07321 Automatic restart active
F07330 Search current measured too low Increase search current (P1202), check motor connection.
A07400 V controller active
DC_max
A07409 U/f control, current limiting con‐
troller active
F07426 Technology controller actual val‐
ue limited
A07444 PID autotuning is activated
374
Remedy
Check the following:
- Is the ambient temperature within the defined limit values?
- Are the load conditions and duty cycle configured accordingly?
- Has the cooling failed?
Check the parameterized supply voltage and if required change (p0210).
Check the line voltage.
Reduce the motor load.
Check ambient temperature.
Check the wiring and connection of the sensor.
Check the motor's ambient temperature.
Check the thermal time constant p0611.
Check overtemperature fault threshold p0605.
Check that the sensor is connected correctly.
Check the parameter assignment (p0601).
Make sure that the sensor is connected correctly.
Check the parameterization (p0601).
Check the adapted parameter values and if required correct.
Increase the number of restart attempts (p1211). The current number of start
attempts is shown in r1214.
Increase the wait time in p1212 and/or monitoring time in p1213.
Connect an ON command (p0840).
Increase the monitoring time of the power unit or switch off (p0857).
Reduce the wait time for resetting the fault counter p1213[1] so that fewer
faults are registered in the time interval.
Explanation: The automatic restart (AR) is active. During voltage recovery
and/or when remedying the causes of pending faults, the drive is automatically
switched back on.
If the controller is not to intervene:
• Increase the ramp-down times.
• Deactivate the V controller (p1240 = 0 for vector control, p1280 = 0 for
DC_max
U/f control).
The alarm automatically disappears after one of the following measures:
• Increase the current limit (p0640).
• Reduce the load.
• Slow down the ramp up to the setpoint speed.
• Adapt the limits to the signal level (p2267, p2268).
• Check the actual value scaling (p2264).
Automatic setting of the PID controller (autotuning) is active (p2350 > 0). The
alarm disappears automatically after completion of the autotuning.
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
SINAMICS G120C Converters