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• Ensure that the loop impedance complies with local installation regulations.
• Check the total length of the shielded power cables (motor cables incl. line supply cables
from line filters to the connection terminals of the Line Module) in the drive lineup. The total
length must be less than 350 m.
• Only operate the system with the recommended line filters.
• Ensure that the switching elements (disconnector unit, contactors) for connecting and
disconnecting the drive system have a delay time of max. 35 ms between the closing/
opening of the individual main contacts.
Note
Nuisance tripping of RCDs
In case of unfavorable line supply conditions, as a result of the system that they are being used
in, converters can generate capacitive leakage currents that can cause RCDs to nuisance trip.
4.3.2
Residual current circuit breakers (RCCB)
Figure 4-2
Booksize power units
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
4.3 Connected to the line supply via residual current devices (RCD)
Connection of a residual-current protective device
Line connection and line-side power components
41
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