Information On The Disconnector Unit - Siemens SINAMICS S220 Equipment Manual

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4.1 Information on the disconnector unit

4.1
Information on the disconnector unit
Disconnector units for S220 Smart Line Modules
A disconnector unit is required for disconnecting the drive lineup from the supply system. This
must be selected in compliance with local regulations.
NOTICE
Damage to the drive electronics when switching the disconnector unit under load
When switching the disconnector unit under load, then the contacts will be subject to
premature wear. This can cause the disconnector unit to malfunction, with subsequent
damage to the drive electronics.
• Use a leading switch-off auxiliary contact or use a Voltage Sensing Module (VSM10).
• If this is not possible, then avoid switching the disconnector unit under load.
The accessories required for the disconnector unit must be selected from the manufacturer
catalogs.
38
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
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