Astraada DRV-22 inverters Fault tracking
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6.1.2 Capacitors
Reforming the capacitors
The DC bus capacitors must be reformed according to the operation instruction if the inverter has been stored for a long time. The storing time is counted form
the producing date other than the delivery data which has been marked in the serial number of the inverter.
Time
Operational principle
Storing time less than 1 year
Operation without charging
Storing time 1-2 years
Connect with the power for 1 hour before first ON command
Storing time 2-3 years
Use power surge to charge for the inverter
• Add 25% rated voltage for 30 minutes
• Add 50% rated voltage for 30 minutes
• Add 75% rated voltage for 30 minutes
• Add 100% rated voltage for 30 minutes
Storing time more than 3
years
Use power surge to charge for the inverter
• Add 25% rated voltage for 2 hours
• Add 50% rated voltage for 2 hours
• Add 75% rated voltage for 2 hours
• Add 100% rated voltage for 2 hours
The method of using power surge to charge for the inverter:
The right selection of power surge depends on the supply power of the inverter. Single phase 230V AC/2A power surge applied to the inverter with
single/three-phase 230V AC as its input voltage. The inverter with single/three-phase 230V AC as its input voltage can apply Single phase 230V AC/2A power
surge (L+ to R and N to S or T). All DC bus capacitors charge at the same time because there is one rectifier.
High-voltage inverter needs enough voltage (for example, 400V) during charging. The small capacitor power (2A is enough) can be used because the capacitor
nearly does not need current when charging.
Change electrolytic capacitors
Read and follow the instructions in chapter Safety Precautions. Ignoring the
instructions may cause physical injury or death, or damage to the equipment.
Change electrolytic capacitors if the working hours of electrolytic capacitors in the inverter are above 35000. Please contact with the local ASTOR offices or dial
our service hotline (+48 12 424-00-88) for detailed operation.
6.1.3 Power cable
Read and follow the instructions in chapter Safety Precautions. Ignoring the
instructions may cause physical injury or death, or damage to the equipment.
1. Stop the drive and disconnect it from the power line. Wait for at least the time designated on the inverter.
2. Check the tightness of the power cable connections.
3. Restore power.
6.2 Fault solution
Only qualified electricians are allowed to maintain the inverter. Read the safety
instructions in chapter Safety precautions before working on the inverter.
6.2.1 Alarm and fault indications
Fault is indicated by LEDs.
See Operation Procedure. When TRIP light is on, an alarm or fault message on the panel display indicates abnormal inverter state.
Using the information given in this chapter, most alarm and fault cause can be identified and corrected. If not, contact with the ASTOR office.
6.2.2 How to reset
The inverter can be reset by pressing the keypad key STOP/RST, through digital input, or by switching the power light. When the fault has been removed, the
motor can be restarted.
6.2.3 Fault instruction and solution
Do as the following after the inverter fault:
1. Check to ensure there is nothing wrong with the keypad. If not, please contact with the local ASTOR office.
2. If there is nothing wrong, please check P07 and ensure the corresponding recorded fault parameters to confirm the real state when the current fault occurs by
all parameters.
3. See the following table for detailed solution and check the corresponding abnormal state.
4. Eliminate the fault and ask for relative help.
5. Check to eliminate the fault and carry out fault reset to run the inverter.
Fault code
Fault type
Possible cause
Solutions
OC1
Over-current when
acceleration
1. The acceleration or
deceleration is too fast.
2. The voltage of the grid is too
low.
1. Increase the ACC time
2. Check the input power
3. Select the inverter with a
larger power
OC2
Over-current when
deceleration
Summary of Contents for DRV-22
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