DC motor - Siemens, s.r.o.

Installation and Assembly
3.5.2 Cable routing
Cable entry and routing
The unscrewable entry plate is supplied as standard without holes drilled so that
the design, number and size of the cable glands can be adapted to the chosen line
conditions.
Cable entry components must:
•= be adapted to the cable diameter and cable type.
•= ensure degree of protection IP 55 (also applies to the screw-in point; use
sealing washer and bonding).
•= conform to the routing conditions (strain relief devices if cables are not fixed).
Connecting cables and in particular protective conductors should be installed in an
open arrangement in the terminal box and if possible with excess length in order to
avoid chafing of the cable insulation.
Unused cable entry holes must be sealed accordingly, ensuring that:
•= the seals consist of resistant, approved material.
•= the degree of protection is ensured (use sealing washer or bonding).
•= they can only be opened with a tool.
Note
Unused cable entry holes must always be sealed with suitable sealing inserts.
[ID 529]
3.5.3 Connecting the ground conductor
Overview
The motor's ground conductor cross-section must comply with the regulations for
electrical installations (e.g. IEC/EN 60204-1).
There is a hexagon bolt with flat and spring washer on the stator frame at the
designated connecting point for the ground conductor. This is suitable to connect
multi-core conductors with cable lugs or straps with appropriate conductor ends.
When making connections, ensure that
•= the contact surface is clean and bright, and is protected with a suitable anticorrosion
agent, e. g. acid-free Vaseline.
•= the flat and spring washers are located under the bolt head.
•= the maximum permissible clamping thickness for the cable lug or strap of 10
mm is not exceeded.
SIEMENS AG T61160347010001 (DMHO V9)
3-10 Operating instructions 1GG6286-0NA4.-1VV1-Z