Operation principle and hardware description 49
Description
The output for the auxiliary fan is wired from the 3-phase supply voltage to terminal block
X601 through a motor starter switch and a contactor. The contactor is operated by the
drive. The 230 V AC control circuit is wired through a jumper on the terminal block; the
jumper can be replaced by an external control circuit.
The starter switch has an adjustable trip current limit, and can be opened to permanently
switch the fan off.
The statuses of both the starter switch and the fan contactor are wired to the terminal
block.
See the circuit diagrams delivered with the drive for the actual wiring.
Type designation label
The type designation label includes an IEC and NEMA rating, appropriate markings, a type
designation and a serial number, which allow identification of each unit.
Quote the complete type designation and serial number when contacting technical
support.
A sample label is shown below.
1 Type designation, see section Type designation key below.
2 Manufacturing address
3 Frame size
4 Cooling method
5 Degree of protection
6 Ratings, see section Ratings on page 163 and Electrical power network specification on page 172.
7 Short-circuit withstand strength, see section Electrical power network specification on page 172.
8 Valid markings
9 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.
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