Connecting-Up According To The Plant-Side Grounding Concept; Connecting Cables Brought Out To The Pe Busbar - Siemens SINAMICS S120 Operating Instructions Manual

Installation
4.5 Connections of transport units
4.5.4.3

Connecting-up according to the plant-side grounding concept

Danger to life due to electric shock when not grounded
If there is no connection to the central grounding of the complete plant, the cabinet unit may
be at a dangerous voltage level in a fault situation. This means that when touched, this can
result in death or severe injury
● Ground the device in compliance with the applicable regulations.
4.5.4.4

Connecting cables brought out to the PE busbar

Establishing the connection
1. Insert the screw from the front.
2. Attach the cable lug from the rear.
3. Attach the nut and, if necessary, the washers and tighten
(tightening torque: 50 Nm).
Note
Close the cabinet doors
When external cables that are to be connected to the PE busbar have been laid, make sure
that the cabinet doors close properly.
74
WARNING
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A