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Torques (Page 104)
6.5
Connecting ground
Danger to life as a result of insufficient grounding
The drive must be grounded to ensure that it operates safely and reliably. If the drive is
operated with insufficient grounding, then the protection and monitoring functions can fail.
Death, serious injury, or material damage will result.
● To ensure the correct functioning of the protection and monitoring equipment, ground the
● To ensure the drive operates safely, connect a protective grounding conductor.
6.6
Laying the signal lines
Malfunction due to common cable installation
Malfunctions can occur in the converter if cables with differing voltage levels are laid together
with internal cables in one cable duct in the cabinet.
● Do not run cables coming from the outside, for example to the terminal strips, together with
Ensure that the following instructions are complied with:
● All signal lines must be shielded. The cable shield should be braided, because cables
● Clamp the shield of incoming analog and binary cables to the shield busbar at the entry point
SINAMICS PERFECT HARMONY GH150 6SL3826
Operating Instructions 05/2020
DANGER
device.
A shield busbar and a grounding lug can be found in the lower area of the cabinets.
Grounding bar and grounding lug are used for grounding the components installed in the
cabinet.
internal cables in one cable duct.
shielded by tape or foil are five times less efficiently protected against interference. Always
ground the cable shields at both ends. Contacting at one end is advantageous in
exceptional cases only.
into the cabinet. Continue running the cable, still shielded, to the terminal strip or board. No
shields are connected to the terminal strips or boards.
Electrical connection
6.6 Laying the signal lines
77
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