Siemens SINAMICS Series, Руководство по эксплуатации

Страница: 171 / 758

Connecting
6.9 Assignment of terminals and connectors
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
169
6.9.1 Power unit
Table 6- 22 Connection system for the power connections 1U1, 1V1, 1W1, 1C1, 1D1
Devices Permissible connection type
Connections 1U1, 1V1, 1W1 Connections 1C1, 1D1
15 A - 30 A Cable Cable
60 A - 850 A Cable, busbars Cable, busbars
900 A - 1200 A Cable, busbars Busbars
1500 A - 3000 A Cable, busbars Cable, busbars
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 KDS 10 PC board terminal
Connection capacity Rigid/flexible/conductor sizes (mm
2
/mm
2
/AWG): 0.5 - 16 / 0.5 - 10 / 20 - 6
flexible with ferrule with/without plastic sleeve: 0.5 - 10 / 0.5 - 10 mm
2
Stripped length 12 mm
Tightening torque 1.2 - 1.5 Nm