Operation
8.4 Controlling the external connections of the inverter
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
149
8.4.4
USB interface
CAUTION
Non-isolated USB interfaces
The USB interface -X50B is not electrically isolated. The connection of a grounded device
can cause an equipment or converter defect and consequentially pose the risk of physical
injury.
Devices that are connected, e.g. laptop with IMS, must have basic insulation between the
USB interface and ground. In this case, the devices must offer this option, e.g. suitable for
battery operation or the original power supply without ground connection.
NOTICE
No supply with a power source of limited output
When the connected device is overloaded, the USB interface can develop defects. The
equipment will be damaged as a result.
The USB interface is a service interface only and not a general IT data interface in
accordance with standard IEC/EN/UL 60950-1.
8.4.5
DIL switches "S1" and "S2"
Switch "S1"
Table 8- 3
Functions - DIL switch "S1"
Switch
Function
Factory setting
S1:1
ON: configuration possible
OFF: parameterization blocked
1
S1:2
ON: general fault in the open-circuit principle,
OFF: general fault in the closed-circuit principle, control cable
terminals -X2:34 … 36
0
S1:3
ON: Complete initialization
OFF:
0
S1:4
ON: flashing in conjunction with S1:3 = ON
OFF:
0
Note
Remote flashing
DIL switches S1:1 and S1:4 must be set to "ON" for remote flashing.