Below we summarize the
SINAMICS drive in the most common 5 errors, as well as the actual maintenance of how to check, how to repair, simple and clear, not a whole lot of terminology.
1. Error F30001: Overvoltage fault
What does it mean?
DC bus voltage is too high, beyond the safe range.
Possible causes:
* Large fluctuations in the mains voltage, with sudden rises.
* The braking resistor is not correctly parameterized or is simply broken.
* The motor feeds back energy when decelerating, and the voltage soars.
How to handle:
* Measure the inlet voltage first to see if there is any over-voltage.
* Check whether the braking resistor is connected or not, or whether the parameters are set correctly.
* Set the deceleration time slower, don't brake too fast.
2. Error F30002: Undervoltage fault
What does it mean?
What does it mean? The bus voltage is too low, the driver can't get enough power.
Possible causes:
* The voltage of the power supply itself is unstable or low.
* Loose connector, wire deterioration.
* Grid faults, voltage valleys.
How to deal with:
* Measure the utility power, stable or not, voltage enough or not.
* Check whether the power cord is firmly connected and oxidized.
* Re-tighten the terminals and remove any corrosion.
3. Error F38050: Over-temperature protection
What does it mean?
The internal temperature of the inverter is too high, it protects itself and stops.
Possible causes:
* The fan is broken, does not rotate or is stuck.
* Radiator dirty, gray too thick.
* Electronic control cabinet temperature would have been too high, can not dissipate heat.
How to deal with:
* Clean the ash! Radiator, air ducts are clean.
* Fan does not turn on a new one.
* Really hot outrageous on the improvement of ventilation conditions, do not let the inverter sauna.
4. Error F30024: Overcurrent fault
What does it mean?
What does it mean? The output current spikes and the drive stops in order to protect itself.
Possible causes:
* Motor overload, mechanical jamming.
* Wrong motor parameters set in the drive.
* Motor short-circuit, cable breakage and ignition.
How to deal with:
* See if there is any stuck place, such as bearings, rust, foreign objects.
* Check whether the motor parameters in the driver are corresponding to the model number.
* Remove the motor cable and measure the insulation to see if there is a short circuit.
5. Error F30003: Ground fault
What does it mean?
A leakage current is detected, indicating where there may be a short ground.
Possible causes:
* Water in motor, moisture in cable.
* The cable is old, torn, insulation has fallen off.
* The motor coil is defective.
What to do:
* Measure the insulation resistance with a megohmmeter (rocking meter).
* Take out the motor to see if there is any water vapor, oil, or dust.
* Find the problematic cable, replace it with a new one or re-wrap it, and don't be sloppy with the grounding.
When Should I Call a Repair Professional?
Some of these problems can be checked out and dealt with in the field. But if you can't get it right after a few rounds of trying, or if the equipment itself is expensive and can't be dismantled, then it's best to leave it to a professional team to do the testing and repair.
We Songwei can provide:
1). Professional SINAMICS test platform, simulation of the real machine operating environment.
2). Detection + report, so that you are clear about each point of failure.
3). High-quality repair and rework test, to ensure that repaired and then on the machine.
4). Detection of no money, the repair of the first offer, rest assured that not a set way!
Lastly
Siemens frequency converter is really solid and good to use, but it is normal to use a little temper for a long time. Mastering the response to these common errors can save a lot of downtime.
Can not handle to
Songwei, let the professionals do professional things. You manage the production, we will manage the maintenance.
Need help at any time to contact! Free initial inspection, first see what the situation before deciding to repair or not. Don't let a frequency converter, drag the whole production line down.
