Motor Cable Length; Motor Connection - Siemens SINAMICS G120P Hardware Installation Manual

4.1.1

Motor cable length

The inverters will operate at full specification with cable lengths as follows:
Table 4- 1
Using
Screened cables, filtered units (class A)
Screened cables, filtered units (class A)
*) EMC compliant connection requiered, see also EMC compliant connection (Page 27)
Table 4- 2
Using
Screened cables, unfiltered units,
Unscreened cables, filtered or unfiltered units
The permissible motor cable length also depends on the cable type and the chosen pulse
frequency (Page 51).
4.1.2

Motor connection

Star and delta connection
Siemens motors show on the inside of the
terminal box a diagram of both connection
methods:
 Star connection (Y)
 Delta connection (Δ)
The motor rating plate provides information
about the correct connection data.
Connecting the motor
Connect the protective conductor of the motor to the
Connect the motor cable to terminals U2, V2 and W2.
If available, close the terminal covers of the inverter.
Power Module PM230, IP20 / Push through
Hardware Installation Manual, 03/2012, A5E03448282B AA
Permissible cable length, depending on the EMI level
Maximum cable length
4.1 Mains and Motor Connection
Maximum cable EMI Level
length
25 m Second Environment, C2
50 m Second Environment, C3
Maximum cable EMI Level
length
50 m EMI Standard not fullfilled
100 m EMI Standard not fullfilled
terminal of the inverter.
Connecting
*)
*)
25