Lengthening I/O Cables - Parker Compumotor AT6200 Installation Manual

Lengthening I/O Cables

AT6200/AT6400 Installation Guide
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Bear in mind that lengthening cables increases noise sensitivity. (The maximum length of
cables is ultimately determined by the environment in which the equipment will be used.)
If you lengthen the cables, follow the precautions below to minimize noise problems.
• Use a minimum wire size of 22 AWG.
• Use twisted pair shielded cables and connect the shield to a
board connector. Leave the other end of the shield disconnected.
• Do not route I/O signals in the same conduit or wiring trays as high-voltage AC wiring.
Reducing noise on limit, trigger, and P-CUT inputs. If you are experiencing
noise problems, try adding resistors to reduce noise sensitivity (see illustration below).
AUX Board
5V
AUX-P
Input Terminal
(P-CUT, Limits or Trigger)
GND
Shield
Note: This cabl configuration will not ensure CE compliance. Refer to Appendix A for
specific CE installation instructions. DC versions of the AT6n00 are not CE
compliant.
Power Supply Options
External Power Supply
(5-24VDC)
Add a resistor between the input and the power supply (this will lower
the input impedance and reduce noise sensitivity). Use a value
between 330Ω and 2.2KΩ, depending on noise suppression required.
Long Cable
terminal on an AUX
SHLD
Output Device,
Switch, etc.