Siemens SINAMICS G120C DP User Manual

Number Cause Remedy
F07445 PID autotuning canceled The converter has canceled the automatic setting of the PID controller (auto‐
tuning) because of a fault.
Remedy: Increase p2355 and restart autotuning.
F07801 Motor overcurrent Check current limits (p0640).
U/f control: Check the current limiting controller (p1340…p1346).
Increase the acceleration ramp (p1120) or reduce the load.
Check the motor and motor cables for short-circuit and ground fault.
Check motor for star-delta connection and rating plate parameterization.
Check power unit / motor combination.
Select the 󹪞ying restart function (p1200) if switched to rotating motor.
A07805 Drive: Power unit overload I2t
• Reduce the continuous load.
• Adapt the load cycle.
• Check the assignment of rated currents of the motor and power unit.
F07807 Short circuit detected
• Check the converter connection on the motor side for any phase-phase
short-circuit.
• Rule out that line and motor cables have been interchanged.
A07850 External alarm 1 The signal for "external alarm 1" has been triggered.
Parameter p2112 de󹪝nes the signal source of the external alarm.
Remedy: Rectify the cause of this alarm.
F07860 External fault 1 Remove the external causes for this fault.
F07900 Motor blocked
• Make sure that the motor can rotate freely.
• Check the torque limit: r1538 for a positive direction of rotation; r1539 for
a negative direction of rotation.
F07901 Motor overspeed Activate precontrol of the speed limiting controller (p1401 bit 7 = 1).
F07902 Motor stalled Check whether the motor data has been parameterized correctly and perform
motor identi󹪝cation.
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.
A07903 Motor speed deviation Increase p2163 and/or p2166.
Increase the torque, current and power limits.
A07910 Motor overtemperature Check the motor load.
Check the motor's ambient temperature.
Check the KTY84 or PT1000 sensor.
A07920 Torque/speed too low 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.
A07921 Torque/speed too high
A07922 Torque/speed out of tolerance
F07923 Torque/speed too low
• Check the connection between the motor and the load.
• Adapt the parameterization corresponding to the load.
F07924 Torque/speed too high
A07927 DC braking active Not required
A07980 Rotary measurement activated Not required
A07981 No enabling for rotary measure‐
ment
Acknowledge pending faults.
Establish missing enables (see r00002, r0046).
Alarms, faults and system messages
9.5List of alarms and faults
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK 375

Siemens SINAMICS G120C DP Specifications

General

Protection Rating	IP20
Frequency Range	0 to 650 Hz
Control Modes	V/f, sensorless vector control
Communication Interfaces	PROFIBUS DP
Ambient Temperature	-10 to +50 °C (without derating), -10 to +60 °C (with derating)
Overload Capacity	150 % rated current for 60 s, 200 % rated current for 3 s
Storage Temperature	-40 to +70 °C
Relative Humidity	5% to 95% (non-condensing)
Voltage Range	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Output Voltage	0 V to Supply Voltage