Siemens SINAMICS G120 Operating Instructions Manual page 390

Alarms, faults and system messages
8.6 List of alarms and faults
Number Cause
A07891 Load monitoring, pump/fan blocked ● Check the pump/fan for blockage and rectify if necessary.
A07892 Load monitoring, pump/fan without
load
A07893 Load monitoring, pump leakage
F07894 Load monitoring, pump/fan blocked ● Check the pump/fan for blockage and rectify if necessary.
F07895 Load monitoring, pump/fan without
load
F07896 Load monitoring, pump leakage
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.
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Remedy
● Check the fan for sluggishness and rectify if necessary.
● Adapt the parameterization depending on the load (p2165, p2168).
● For a pump, check the conveyor medium and provide if necessary.
● For a fan, check the belt and replace if necessary
● If necessary, increase the torque threshold for detection (p2191).
● Rectify the leakage in the pump circuit.
● For a false tripping, reduce the torque thresholds of the leakage
characteristic (p2186, p2188, p2190).
● Check the fan for sluggishness and rectify if necessary.
● Adapt the parameterization depending on the load (p2165, p2168).
● For a pump, check the conveyor medium and provide if necessary.
● For a fan, check the belt and replace if necessary
● If necessary, increase the torque threshold for detection (p2191).
● Rectify the leakage in the pump circuit.
● For a false tripping, reduce the torque thresholds of the leakage
characteristic (p2186, p2188, p2190).
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 the precontrol for the speed limiting controller (p1401 bit 7 = 1).
Increase the hysteresis for overspeed signal p2162.
Check whether the motor data has been set correctly and perform a 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).
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD