MOTOR
MAINS
EXTERNAL
REGEN
RESISTOR
CONTROLLER
XENUS
Plus
2-Axis
FEEDBACK
LINE
FILTER
J1
J3
J4
J10
J11
J9
J2
J6
SAFE
TORQUE
OFF
24 V
POWER
SUPPLY
J5
PE
Heatplate Grounding Screw
Protective
Earth
CONTROLLER
J12
RoHS
Xenus
PLUS
2-Axis
MACRO
XM2
Rev 01
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
16-01419
Rev A
Page 31 of 34
keep the chassis grounding
connections short for best
shielding performance
grounding for safety
The protective earth (PE) ground at J1-3
(for both single and dual axis drives), is
the electrical safety ground and is intended
to carry the fault currents from the mains
in the case of an internal failure or short-
circuit of electronic components. Wiring to
this ground should be done using the same
gauge wire as that used for the mains. this
wire is a “protective bonding” conductor that
should be connected to an earthed ground
point and must not pass through any circuit
interrupting devices. the Pe ground also
connects to the drive heatplate (Frame
Ground, FG). Connections of the regen
and motor cable shields to the FG points
(J2-1, J3-1) is done to prevent the motor
or regen resistor housing from becoming
hazardous in the event of an insulation
failure. Protective earth connections for
the motor and regen resistor housings are
subject to local electrical codes and must be
reviewed for compliance with those codes.
it is the responsibility of the end user to
ensure compliance with local electrical
codes and any other applicable standards.
it is strongly recommended that motor and
regen resistor housings also be connected to
protective earth connection points located
as close to the motor and regen resistor as
possible. in many applications, the machine
frame is used as a primary or supplemental
protective earth connection point for the
motor and regen resistor housings
grounding and shielding
for ce compliance
these connections are the means of
controlling the emission of radio frequency
energy from the drive so that it does not
interfere with other electronic equipment.
the use of shielded cables to connect the
drive to motors and feedback devices is a
way of extending the chassis of the drive
out to these devices so that the conductors
carrying noise generated by the drive are
completely enclosed by a conductive shield.
The FG ground terminals provide cable
shield connection points for the motor,
feedback, and regen resistor cables.
By connecting the shields for these devices
at the drive and at the device, the connection
is continuous and provides a return path for
radio-frequency energy to the drive.
To further minimize electrical noise it is
important to keep the connection between
the drive heatplate and earth/equipment
frame as short as possible. A Heatplate
Grounding Screw is provided for making
this connection.
grounding for leakage current
requirements
The connection to the Heatplate Grounding
Screw also provides a second protective
earthing conductor to address the touch
current requirements of IEC 61800-5-1.
Further information on this topic can
be found in the Xenus Plus User Guide.
groundIng & shIeldIng
notes:
1) Shielded cables required for Ce are shown in the diagram above.
2) line filter required for CE
HEATPlATE GROUNDING SCREW
