Siemens SINAMICS G120 Operating Instructions Manual page 70

Installing
4.6 Connecting inverters in compliance with EMC
Figure 4-7
Shielding with shield plate: Shield connection kits are available for all Power Module frame
Shielding without shield plate: EMC-compliant shielding can also be implemented without
Braking resistor connection: • Connect the braking resistor using a shielded cable.
Connecting encoder and signal cables to the terminal strip in compliance with EMC
• Use shielded cables.
• Mount the shield plate of the Control Unit.
Signal cables ①
• Connect the shield of the signal cables to the shield
plate of the Control Unit (
• Attach the strain relief elements to the shield plate
⑥
• Also connect the shield to the shield rail of the
control cabinet (
Encoder cables ②
• Connect the shield of the encoder cable to the shield
plate of the Control Unit (
• Attach a strain relief element to the shield plate
• Also connect the shield to the shield rail of the
control cabinet (
70
Shield connection - detail
④
of the Power Module (
.
⑤
).
⑤
).
sizes (you will find more information in Catalog D11.1). The
cable shields must be connected to the shield plate through the
greatest possible surface area using shield clamps.
using a shield plate. In this case, you must ensure that the
cable shields are connected to the ground potential through
the largest possible surface area.
• Connect the shield to the mounting plate or to the shield
plate.
• To do this, use a cable clamp to establish an electrically
conductive connection through a large surface area.
③
) and to the shield plate
).
③
).
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
⑥
.
Converter with the CU250S-2 Control Unit (vector)