19
Electrical installation
Operation Manual Expansion Module SO CM-E
1800.202B.0-01 Date: 02/2019
4.4.2
Connection principle
5
10
1
3
4
4
8
6
7
7
2
L ≤ 1,5 m
5
PE
Netz/Line
9
1.
Mains filter
2.
Mains choke
3.
MotionOne CM controller
4.
ServoOne CM-P supply unit BG3
5.
ServoOne CM axis controller BG3/4
6. ServoOne CM-E expansion module
7. ServoOne CM axis controller BG1/2
8. Star topology earthing
9. Earthing for SO CM-E ≥ 16 mm
2
(as per EN 61800-5-1)
10.
Earthing in series (only SO CM BG1+2) optionally
PE strap (article no.: 1400.807.0) can be used
Figure 4.2 Example: Connection of the SO CM BG3/4 to the expansion module and SO CM
BG1/2
4.4 Protective earth conductor connection
Step
Action
Comment
1.
Connect the PE connections on the expansion module, the supply
unit, the axis controllers and the controller etc. to the PE rail (main
earth)
in a star topology
Each device in the axis group
must be earthed!
2.
Connect the protective earth conductor connections on all other
components, such as mains filter*), mains choke *) etc. in a
star
topology
to the PE rail (main earth) in the switch cabinet.
*) Components are only
required for the ServoOne
CM-P supply unit.
4.4.1
PE connection in accordance with DIN EN 61800-5-1
The leakage current is > 3.5 mA. This situation results in the following minimum
requirements for the protective earth conductor cross-section as a function of the phase
conductor cross-section, as per EN 61800-5-1.
Cross-section of the phase conductors
Minimum cross-section
of the corresponding protective earth conductor
Q ≤ 16 mm
2
Q however at least 10 mm
2
(Cu)
16 < Q ≤ 35 mm
2
16 mm
2
(Cu)
Q
>
35 mm
2
Q/2
Table 4.3 Protective earth conductor cross-section
CAUTION!
Risk of injury due to incorrect wiring!
Carelessness may result in injuries.
The protective earth conductor connection is a safety feature. Therefore, make sure that all
connections have good contact and are sufficiently secure that they cannot come loose.
NOTE:
Always comply with local and national regulations and conditions.
