3.4
Connecting the protective earth conductor
Step
Action
Pe mains connection
to DIN
EN 61800-5-1
1
1
.
.
Every device in the axis group must be grounded!
•
Connect the PE connections of the supply
unit, the servo amplifier and the controller
in
series
. Connect one of the devices to the PE
rail (main ground) in the control cabinet (see
"Fig. 3.6 Protective conductor connection of
Since the leakage current is >3.5 mA, the following
applies to the PE connection:
•
Use protective conductors with the same cross-
section as the mains cables.
•
If the cross-section of the mains cable is < 10
mm
2
, the PE connections must be doubled,
see Fig. 3.7, or a copper cable with a minimum
cross-section of 10 mm² must be laid.
2
2.
Connect the protective conductor terminals of all
other components, such as line
filter*), line reac
-
tor*), etc. in a
star configuration
to the PE rail
(main ground) in the control cabinet.
*) Components are only required for the JM-3000
supply unit.
PE
Netz/Line
Last/Load
1
2
3
4
5
6
7
Fig. 3.6 Protective conductor connection of the JM-3000 sys-
tem
1) Supply unit
2)
Servo amplifiers
3)
Servo amplifiers
4) Line reactor
5)
Line filter
6) Grounding in series from below
7) Alternative ground connection from above
Electrical installation
50
Jetter AG
