SEW-Eurodrive MOVI-C CONTROLLER UHX65A - Installation Notes; Electrical installation; Shielding and routing bus cables

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Installation notes
Electrical installation
Manual – MOVI‑C
®
CONTROLLER progressiveUHX65A
20
4.3 Electrical installation
INFORMATION
Installation with protective separation.
The device meets all requirements for protective separation of power and electronics
connections in accordance with EN61800‑5‑1. The connected signal circuits have to
meet the requirements according to SELV (Safe Extremely Low Voltage) or PELV
(Protective Extra Low Voltage) to ensure protective separation. The installation must
meet the requirements for protective separation.
4.3.1 Shielding and routing bus cables
NOTICE
Danger of flowing compensating currents due to the incorrect cable type, inadequate
shielding, and/or the incorrect routing of bus cables.
Possible damage to property.
• In the event of fluctuations in the ground potential, a compensating current may
flow via the bilaterally connected shield that is also connected to the protective
earth (PE). Make sure you always supply adequate equipotential bonding in ac-
cordance with the relevant IEC regulations.
Only use shielded cables and connection elements that meet the requirements of cat-
egory 5, class D as per IEC11801 edition 2.0.
You can take the following measures to minimize electrical interference:
• Manually tighten the mounting screws on the connectors, modules, and equipoten-
tial bonding conductors.
• Use only connectors with a metal housing or a metalized housing.
• Connect the shielding in the connector over a wide surface area.
• Apply the shielding of the bus cable on both ends.
• Always route the signal and bus cables spatially separated from power cables
(motor leads) and, whenever possible, in separate cable ducts.
• Use metallic, grounded cable racks in industrial environments.
• Route the signal cable and the corresponding equipotential bonding close to each
other using the shortest possible route.
• Avoid using plug connectors to extend bus cables.
• Route the bus cables closely along existing grounding surfaces.
28514688/EN – 02/2019