Siemens SINAMICS G120D Operating Instructions Manual page 301

Number Cause
F07806 Regenerative power limit exceeded
F07807 Short circuit detected
A07850 External alarm 1 ... 3
A07851
A07852
F07860 External fault 1 ... 3
F07861
F07862
F07900 Motor blocked
F07901 Motor overspeed
F07902 Motor stalled
A07903 Motor speed deviation
A07910 Motor overtemperature
A07920 Torque/speed too low
A07921 Torque/speed too high
A07922 Torque/speed out of tolerance
F07923 Torque/speed too low
F07924 Torque/speed too high
A07927 DC braking active
A07980 Rotary measurement activated
A07981 No enabling for rotary measurement Acknowledge pending faults.
A07991 Motor data identification activated
F08501 Setpoint timeout
Converter with the control units CU240D-2
Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH
Remedy
Increase deceleration ramp.
Reduce driving load.
Use power unit with higher energy recovery capability.
For vector control, the regenerative power limit in p1531 can be reduced
until the fault is no longer activated.
• Check the converter connection on the motor side for any phase-phase
short-circuit.
• Rule out that line and motor cables have been interchanged.
The signal for "external alarm 1" has been triggered.
Parameters p2112, p2116 and p2117 determine the signal sources for the
external alarm 1... 3.
Remedy: Remove the causes of these alarms.
Remove the external causes for this fault.
Check that the motor can run freely.
Check the torque limits (r1538 and r1539).
Check the parameters of the "Motor blocked" message (p2175, p2177).
Activate precontrol of the speed limiting controller (p1401 bit 7 = 1).
Increase hysteresis for overspeed signal p2162.
Check whether the motor data has been parameterized correctly and per‐
form motor identification.
Check the current limits (p0640, r0067, r0289). If the current limits are too
low, the drive cannot be magnetized.
Check whether motor cables are disconnected during operation.
Increase p2163 and/or p2166.
Increase the torque, current and power limits.
Check the motor load.
Check the motor's ambient temperature.
Check the KTY84 or PT1000 sensor.
Check the overtemperatures of the thermal model (p0626 ... p0628).
The torque deviates from the torque/speed envelope curve.
• Check the connection between the motor and the load.
• Adapt the parameterization corresponding to the load.
• Check the connection between the motor and the load.
• Adapt the parameterization corresponding to the load.
Not required
Not required
Establish missing enables (see r00002, r0046).
Switch on the motor and identify the motor data.
• Check the PROFINET connection.
• Set the controller to RUN mode.
• If the error occurs repeatedly, check the set monitoring time p2044.
Alarms, faults and system messages
9.6 List of alarms and faults
299