Description
3.3 Accessories
Installation and Operating Instructions SINAMICS G180
52
Operating Instructions, 02/2019, 4BS0751-007
3.3.7
Main switch "Q 2T..." or "W 2T..."
Inverters can optionally be purchased with a main switch as switch disconnector. The
manual operation of the switch is on the inside for the "W" version. The switch is strictly a
maintenance switch. The switch can only be operated when the corresponding covers for
compact units or doors for cabinet units are opened.
The switch can be manually operated from the outside for the "Q" version. The handle can
be blocked in the zero position with up to three padlocks. The switch is thus protected
against being switched on again. The padlocks are not included in the delivery.
For this option, the following dimensions are produced for the individual frame sizes:
Table 3- 3
Main switch option for different frame sizes
BG K1 … BG K4
Standard device dimensions only
BG K5
Option "Q" / "W" is not possible.
BG K51
For this frame size you can integrate option "Q" / "W".
BG K6
In this case, option "Q" / "W" is only possible in a cabinet system
2X….
BG K6 BG S1 … BG S3
No different dimensions than standard device
CAUTION
Serious injury and material damage caused by arcs
If the mains power supply cable is not properly connected to the main switch for the "Q" /
"W" option, destruction due to arcs can occur. Connect the mains power supply line to the
main switch properly. Follow the connection instructions supplied by the manufacturer of
the main switch The instructions can be found in the unit or inside the door in the cabinet
pocket.
3.3.8
DC link terminals for compact devices
Features
The DC link terminals –X1:UD+2 and –X1:UD-2 are generally available for the small inverters
up to 2T2A07400-030 for 400 V or, up to 2T2A07500-037 for500 V. These are optionally
available for all larger inverters. The inverters only have to be connected using the DC link if
you would like to establish a DC network. Only implement the DC network if you would like
generator operation with one drive.
Example: Test station with load apparatus. In this case only the losses are supplied via the
network. The generated energy is routed via the DC link. Refer to the following graphic for
the electrical design:
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