Siemens CU240B-2 - Page 416

Alarms, faults and system messages
9.5 List of alarms and faults
Converter with the CU240B-2 and CU240E-2 Control Units
416 Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
Number
Cause
Remedy
A05000
A05001
A05002
A05004
A05006
Power Module overtemperature 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?
F06310 Supply voltage (p0210) incorrectly
set
Check the set supply voltage and if required change (p0210).
Check the line voltage.
F07011 Motor overtemperature Reduce the motor load.
Check the ambient temperature.
Check the wiring and connection of the sensor.
A07012 I2t Motor Module overtemperature Check and if necessary reduce the motor load.
Check the motor's ambient temperature.
Check the thermal time constant p0611.
Check the overtemperature fault threshold p0605.
A07015 Motor temperature sensor alarm Check that the sensor is connected correctly.
Check the parameter assignment (p0601).
F07016 Motor temperature sensor fault Make sure that the sensor is connected correctly.
Check the parameterization (p0601).
Deactivate the motor temperature sensor fault evaluation (p0607 = 0).
F07086
F07088
Switching over units: Parameter
limit violation
Check the adapted parameter values and if required correct.
F07320 Automatic restart aborted Increase the number of restart attempts (p1211). The actual 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.
A07321 Automatic restart active
Explanation: The automatic restart (AR) is active. During voltage recovery
and/or when remedying the causes of pending faults, the drive is auto-
matically switched back on.
F07330
Search current measured too low
Increase the search current (p1202), check the motor connection.
A07400 DC-link voltage maximum control-
ler active
If it is not desirable that the controller intervenes:
• Increase the ramp-down times.
•
Deactivate the Vdc_max control (p1240 = 0 for vector control, p1280 =
0 for V/f control).
A07409 V/f control, current limiting control-
ler active
The alarm automatically disappears after one of the following measures:
• Increase the current limit (p0640).
• Reduce the load.
• Slow down the ramp-ups for the setpoint speed.
F07426 Technology controller actual value
limited
• Adapt the limits to the signal level (p2267, p2268).
• Check the actual value scaling (p2264).
A07444 PID autotuning is activated Automatic setting of the PID controller (autotuning) is active (p2350 > 0).
The alarm disappears automatically after completion of the autotuning.