LION microPLC
▪
Mounting
20
7.2
Grounding
Electric shocks and injuries through incorrect grounding.
▪ The device must be grounded by a qualified electrician.
▪ The ground connection must not be more than 20 cm long. 10 cm is
recommended.
▪ The ground cable must have a gauge of at least 2.5 mm
2
.
▪ The cable shoe used must be as wide as possible.
▪ Always ground the device via the PE ground connection (X0 clamp), not the
DIN rail.
▪ Ground the DIN rail separately in order to comply with the EMC Directive.
Connect the ground cable to the X0
connector of the device:
1. Loose the bolt (3)* of the PE ground
connection (X0 clamp)
2. Use a circular cable shoe on the
earth cable (2).
3. Fix the circular cable shoe between
the safety washer
(e.g. Schnorr)
(1)
and the screw (3).
4. Ground the module.
*
screw with hexalobular internal socket
(e.g. "TX", "6-lobe", "star screw", etc.)
The module PE ground connection must be as short as possible and
connected to ground potential with the lowest possible inductance.
For modules with several earthing points (e.g. power supply plug and
module PE ground connection), a common earthing contact must be used
for both earthing points.
We suggest a maximum length of 10 cm. Grounding must be star-shaped.
The mounting plate forms the star point.
If you have any questions, please contact Lütze Transportation Technical
Support.