56 Operation principle and hardware description
Type designation labels
Inverter label
The type designation label of the inverter includes the ratings, valid markings, a type
designation and a serial number, which allow individual recognition of each inverter. The
type designation label is located on the front cover of the inverter cabinet. An example
label is shown below.
No. Description
1 Serial number. The first digit of the serial number refers to the manufacturing plant. The next
four digits refer to the unit’s manufacturing year and week, respectively. The remaining
digits complete the serial number so that there are no two units with the same number.
2 Type designation, see section Type designation key below.
3 Valid markings
4 Ratings of inverter
1
2
3
4