Power Unit - Siemens SINAMICS Series Operating Instructions Manual

6.9.1

Power unit

Table 6- 22 Connection system for the power connections 1U1, 1V1, 1W1, 1C1, 1D1
Devices
15 A - 30 A
60 A - 850 A
900 A - 1200 A
1500 A - 3000 A
Handling the contact surfaces of busbar connections:
All contact surfaces must be clean and may not be damaged.
Busbars manufactured out of Cu, Al, Al-Mg-Si:
•
The contact surfaces should be bare metal (e.g. use a file brush, abrasive stone). Use separate brushes for Cu and Al,
mark appropriately.
Immediately apply acid-free Vaseline (for example, Shell 8422) to aluminum busbars. Apply the appropriate grease to
the contact points of the Al busbars approx. 10 mm beyond the contact surface.
Do not apply grease to copper busbars.
Nickel-plated copper busbars:
•
Wipe the contact surfaces with a clean, dry cloth. If the nickel-plated surfaces are slightly oxidized, then remove these
oxide layers before bolting. It is not permissible to use a steel brush or similar.
Note:
The clearances required between the power connections (12.7 mm / 1/2 ") must not be fallen below. Otherwise, insulating
elements must be inserted.
Table 6- 23 Terminal type, power connections for 15 A and 30 A devices
Type
Connection capacity
Stripped length
Tightening torque
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
Connections 1U1, 1V1, 1W1
Cable
Cable, busbars
Cable, busbars
Cable, busbars
KDS 10 PC board terminal
Rigid/flexible/conductor sizes (mm
flexible with ferrule with/without plastic sleeve: 0.5 - 10 / 0.5 - 10 mm
12 mm
1.2 - 1.5 Nm
6.9 Assignment of terminals and connectors
Permissible connection type
Connections 1C1, 1D1
Cable
Cable, busbars
Busbars
Cable, busbars
/mm /AWG): 0.5 - 16 / 0.5 - 10 / 20 - 6
2 2
Connecting
2
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