Connecting The Protective Conductors - Beckhoff AX8000 Series Manual

6.3

Connecting the protective conductors

Procedure for establishing the device connection (A)
The following section provides information on the correct installation of the device connection for a multi-axis
drive system consisting of an AX8620 power supply module and two AX8206 axis modules.
To establish the device connection (A) proceed as follows:
• Feed the grounding hanger [1] with the elongated hole to the left-hand earthing bolt of the supply or
axis module. Ensure that the opening of the grounding hanger [1] faces upwards.
• Turn the supplied hex nut [2] onto the grounding bolt at the long hole. Now tighten the hex nut with a
tightening torque of 2.3 Nm.
• In the next step, place another hexagon nut [2] on the grounding bolt on the opening of the grounding
hanger [1]. Now tighten the hex nut with a tightening torque of 2.3 Nm.
You have successfully connected your devices via the earthing bolt [1].
Now apply the protective earth (B).
Multi axis servo system AX8000
Grounding hanger and hex nuts with flange and
serrations are used for the shield connection of
the AX8000 multi-axis servo system. They are
included in the scope of supply of the AX8206 or
AX81x8 axis modules.
The infographic on the left shows the following items:
A → Connection of the individual modules to a drive
system via grounding hanger. The grounding hanger
are mechanically locked at the right-hand earthing
bolt of each module and attached and mechanically
secured to the left-hand earthing bolt of the adjacent
module.
B → Establishment of protective earth via the left-
hand earthing bolt at the power supply module and
the mounting plate of the control cabinet. The
connection is established using a cable with an
annular cable lug (minimum cross-section for
protective conductors 10 mm
Both items (A) and (B) are explained later in this
chapter, based on examples.
Version: 1.6
Mechanical Installation
2
) and a spring washer.
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