I have a Siemens inverter 440 90 kW on a DC also reported F0022

powerstack fault off2 possible causes.

Hardware failure (R0947=22 and R0949=1) caused by the following events:

1) DC middle circuit overcurrent = IGBT short circuit.

2) Short circuit in the braking unit.

3) Ground fault.

4) IO plate is not inserted properly.

Frame size a c: (1), 2), 3), 4) frame size d e: (1), 2), 4) frame size f: (2), 4).

In the case of stacks, since all of these faults are assigned to a single signal, it is not possible to determine which fault actually occurred.

MM440 frame sizes FX and GX:

UCE faults are detected when R0947 = 22 and the fault value R0949 = 12 or 13 or 14 (depending on UCE).

When R0947 = 22 and the fault value R0949 = 21 (on off power is required), the I2C bus reads out an error.

Diagnosis and what to do.

Check the IO plate. It must be fully inserted into place.

Hardware failure: DC intermediate circuit overcurrent IGBT short circuit, braking unit short circuit, ground fault, IO is not inserted correctly;

The F0002 overvoltage alarm of Siemens inverter MM440 indicates that the following reasons may occur:

1. The voltage of the DC circuit (R0026) exceeds the trip level (P2172).

2. Overvoltage is caused by high power supply voltage, or the motor is in regenerative braking mode.

3. The slope descends too fast, or the motor is driven by a large inertia load to rotate and is in a state of regenerative braking.

Troubleshooting: 1. Check the following items according to normal procedures

1. The power supply voltage (P0210) must be within the range specified in the nameplate of the inverter.

2. The DC loop voltage controller must be valid (P1240) and correctly parameterized.

3. The ramp descent time (P1121) must match the inertia of the load.

4. The required braking power must be within the specified limit.

2. Try to check the following:

1. Shake off the load to see if the no-load inverter reports an alarm, there may be an alarm caused by the motor grounding.

2. Maybe the capacity of resistance braking is too small, try to set the acceleration time and deceleration time to a larger one, or add a braking unit.

3. The power supply voltage is unstable, or there is an impact load nearby, which interferes with the system and leads to false alarm failure.

F0022HWMONITORINGFAULT off2

Causes

Hardware failure (R0947=22 and R0949=1) caused by the following events:

1) DC middle circuit overcurrent = IGBT short circuit.

2) Short circuit in the braking unit.

3) Grounding fault caution;

4) IO plate is not inserted properly.

Diagnosis and response

First, you must verify whether the fault is a frequent failure (i.e., the drive cannot be started without a fault) or an intermittent failure (which occurs occasionally or under certain defined operating conditions).

Frequent F0022 faults

1. Check the IO board. It must be fully inserted into place.

2. Is there a ground fault or short circuit at the output end of the inverter or IGBT? Disassemble the motor cable and weigh it to determine which is the case.

If this failure occurs frequently while disconnecting all external circuitry connections (from the power supply), it is almost certain that the unit is damaged and should be repaired.

Turn left|Turn right.

Intermittent F0022 failures

Such faults should be considered "overcurrent". Intermittent F0022 failures can occur in the following situations:

1. Sudden change of load or mechanical blockage.

2. The slope time is very short.

3. Optimization of sensorless vector control.

4. The installed braking resistor is incorrect and the resistance value is too low.

Most of them are unstable power supply or power supply harmonics at the incoming end.

interference. Workaround:

You can add an incoming filter, or an incoming reactor.

to suppress harmonics. If it is caused by harmonics, you can add an incoming filter or an incoming reactor to suppress the harmonics; There is also the possibility that the inverter is a hardware fault of the inverter, such as a voltage detection loop.

Then, the acceleration current is limited to the overcurrent capacity of the inverter, so as not to cause the inverter to trip due to the overrun. The key points of the deceleration time setting are: to prevent the smooth circuit voltage from being too large, and not to cause the regenerative overvoltage to stall and trip the inverter. The acceleration and deceleration time can be adjusted according to the load.

It is calculated, but in the debugging, it is often taken to set a long acceleration and deceleration time according to the load and experience, and observe whether there is an over-current and over-voltage alarm through the start and stop motors; Then, the acceleration and deceleration setting time is gradually shortened, and the optimal acceleration and deceleration time can be determined by repeating the operation several times in the principle that no alarm occurs during operation.

F0001 is an overcurrent fault.

1. Look at the power and number of poles of the inverter, whether it is similar to the motor nameplate.

2. Check whether the output terminal is grounded or leakage.

3. Check whether the current electrical measurement circuit (current transformer) is damaged, resulting in the wrong current signal to the CPU (the detection method is to cut off the detection circuit in turn, press reset, and see if F0001 can be eliminated).

Maybe you don't describe this problem too clearly.

If it is reported that F0001 is not started on the power, you can try to get rid of the load and try again, if it is also reported, then it can basically be determined that it is a problem with the inverter, and if you can't deal with it yourself, you can send it for repair.

If it is reported F0001 after starting, you can monitor the output current of the inverter when it is started to see if it exceeds the rated by a lot.

Check the parameter settings in the quick commissioning, check the motors, loads, motor connection cables, etc.

Examples of common faults of Siemens MM430 inverter:

1. F0001 over-current maintenance, F0002 over-voltage maintenance, F0003 under-voltage maintenance, F0004 over-temperature maintenance;

2. F0012 temperature signal abnormal maintenance;

3. F0022 power component fault maintenance, **F0021 maintenance, F0024 fault maintenance, F0540 fault maintenance;

4. Module burning maintenance, power board damage maintenance, module explosion maintenance, no output maintenance;

5. Repair with motor without force, motor shake maintenance, closing trip maintenance, output short circuit maintenance, input short circuit maintenance, display --- maintenance, display horizontal bar maintenance, fault can not be eliminated, motherboard fault maintenance, module explosion maintenance, drive board damage maintenance.

The fault information F0023 of Siemens inverter MM440 indicates that the output of the inverter is faulty, and the output is disconnected. There may be several reasons for this failure:

1.Cause of the failure.

1) The motor cable on the output terminal of the Siemens inverter is not connected properly;

2) The motor cable at the motor terminal is not connected;

3) The motor cable is damaged;

4) The output contactor is disconnected or the control logic is wrong;

5) The difference between the rated power of Siemens inverter and the rated power of the motor is too large;

6) Siemens inverter hardware failure or motor failure;

2.Workaround:

When the Siemens inverter MM440 prompts the F0023 fault alarm, the user needs to check the following items:

1) Check whether the output terminal of the inverter, the motor terminal and the motor cable are firmly connected and whether the cable is disconnected. If the wiring is loose, the wiring needs to be tightened, and if the cable is disconnected, a new connecting cable needs to be replaced;

2) Check the empty opening of the output side, whether the contactor is disconnected or damaged;

3) Check whether the contactor control timing is correct;

4) Check whether the motor is faulty, and replace the motor if necessary;

5) Check whether the rated power of the inverter and the motor match;

6) Check whether there is a hardware problem with the inverter, and replace it when needed;

The fault F0023 reported by Siemens 440 inverter is the output phase loss, please check whether there is an open circuit between the motor and the motor connection.

F0001 is an overcurrent fault.

1. Look at the power and number of poles of the inverter, whether it is similar to the motor nameplate.

2. Check whether the output terminal is grounded or leakage.

3. Check whether the current test circuit (current transformer) is damaged, resulting in the wrong current signal being transmitted to the CPU (the detection method is to cut off the detection circuit in turn, press reset, and see if F0001 can be eliminated).

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Hello, the F004 error code reported by Siemens 440 inverter is generally caused by the wrong parameter setting. Specifically, it may be due to the following reasons:1

Wrong motor parameter setting: It is necessary to confirm whether the motor parameter setting on the inverter is correct, including the motor forehead and file set power, rated current, rated frequency and other parameters. 2.

Incorrect setting of overload protection parameters: It is necessary to confirm whether the overload protection parameters on the inverter are set correctly, including overload protection current, overload protection time, etc. 3.

Incorrect control mode setting: It is necessary to confirm whether the control mode setting on the inverter is correct, including V f control, vector control and other parameters. 4.

Wrong output frequency setting: You need to confirm whether the output frequency on the inverter is set correctly, including the maximum output frequency, minimum output frequency and other parameters. 5.

Unstable power supply voltage: It is necessary to check whether the power supply voltage is stable, if the power supply voltage fluctuates greatly, it will also cause an alarm in the inverter.