TEC TECDrive20-EU Series - Capacitor

TECDrive20-EU Series Inverter Fault tracking
-105-
Air direction
Air direction
Rotation
direction
Figure 6-2 Fan installation of the inverters 3PH, 400V, ≥4kW
6.1.3 Capacitor
6.1.3.1 Capacitor reforming
If the inverter has been left unused for a long time, you need to follow the instructions to reform
the DC bus capacitor before using it. The storage time is calculated from the date the inverter
is delivered.
Storage time
Operational instruction
Less than 1 year
No charging operation is required.
1 to 2 years
The inverter needs to be powered on for 1 hour before the
first running command.
2 to 3 years
Use a voltage controlled power supply to charge the
inverter:
Charge the inverter at 25% of the rated voltage for 30
minutes, and then charge it at 50% of the rated voltage for
30 minutes, at 75% for another 30 minutes, and finally
charge it at 100% of the rated voltage for 30 minutes.
More than 3 years
Use a voltage controlled power supply to charge the
inverter:
Charge the inverter at 25% of the rated voltage for 2 hours,
and then charge it at 50% of the rated voltage for 2 hours, at
75% for another 2 hours, and finally charge it at 100% of the
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