ABB IRC5 Product Manual page 61

Signal class
Power signals
Control signals
Measuring signals
Data communication
signals
Shielding cables
When peripheral devices are connected to the robot system, a shielded cable is
necessary to reduce coupling of the inner cable conductors to the environment
they pass through.
Shielding cable requirements
Shielding example
The below example shows the shielding of a d-type connector:
xx1700001320
Product manual - IRC5
3HAC047136-001 Revision: M
Cable type
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• The best method for shielding is to ground the shield at both ends of the
cable, provided the ends grounding are at the same potential.
• The optimum shielding is a combination of foil and braid screens.
• The best connection is one in which the shielding is extended up to and
makes a solid 360° connection (shown below) with the ground plane or
chassis.
A A dimpled connector body makes multiple bonds to the mating connector
body all around its periphery, 360° bonding.
B Metal, or metallized, back shell makes 360° bond to the connector body.
C The cable shield is exposed and 360° clamped to the back shell. A tight fit
is a must.
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2 Installation and commissioning
2.5.2 Connecting cables to the controller
These signals generate a lot of interference and must be
laid separate from control, measuring, and communication
signals.
The shielding must be connected to a paint-free part of the
panel chassis of the cabinet at both ends of the cable. Any
unshielded cable must be as short as possible.
The manipulator power cables are routed on the floor and
along the left side of the controller cabinet.
Cables should not be wound up like coils. This could cause
an magnetic field disturbing the signals. There would also
be a risk of overheating depending on the load.
These signals are very sensitive to interference. To protect
these signals they should not be laid along with the power
signals.
In the cable, each signal must be twisted with a neutral wire.
The shielding must be connected directly to the chassis at
both ends of the cable.
Continued
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