installed vertically to allow free air flow from bottom to the top. For forced
cooled systems it is allowed to install the system housing horizontally.
Install the system housing on a vertical metal surface, and ensure electrical
contact between the system housing and this surface, either by means of
washers under the screw heads or use the protective earth post on the system
housing with washers and nuts. Ensure that there is electrical contact between
the system housing and the mounting base of all other equipment installed on
the metal frame or mounting base.
Each protective earth connection may be routed in the most convenient manner
for the equipment concerned. The NYCe 4000 system puts no extra
requirements on the protective earth wiring – no central earth point or similar
constraint.
10.4 Protective Earth connection
For safety reasons, a protective earth connection via the threaded earth post is
mandatory.
The protective earth connection must be connected before any other cables are
connected to the system housing.
The protective earth connection must be realized using an as short as possible
cable, or better, a braided band, with a faston at the system housing side.
The protective earth connection is fastened on the M5 threaded post on the
system housing using a ring, the faston with the cable or the braided band, a
spring washer and a nut, in that order. Tighten the nut with a nut spanner.
You must adhere to the installation requirements of your country.
10.5 Motor connection
Always use shielded cables for motors. All motor cables must be connected with
the motor cable shield and support bracket using the following mounting
instruction.
1. Strip the wires of the motor cable according to the following picture.
A
B
X
Y
Fig. 10-12: Stripping the motor cable
Strip the cable coating (A) for a length of 50 mm.
Strip the shield (B) for a length of 40 mm.
34/45
Installation and Removal
NYCe 4000 Multi-axis motion control
system
Bosch Rexroth AG R911337318_Edition 09
