Yaskawa SmartTrac AC1 - Manual (Page 77)

SMART TRAC AC1
Technical Manual TM 3554-000Appendix C - Wiring, Grounding and Installation Practices for Noise Immunity
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8-7
7. COMMUNICATION WIRING
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ArcNet Coaxial Cables
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Ethernet Wiring
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Genius Wiring
Adhere to the following when wiring:
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AC control wiring (typically 115 VAC) for relay signals should be
routed separately from power and separately from low voltage wiring.
•
AC input power to the SmartTrac Power Supply shall be routed
separate from AC Control wiring.
•
Do not route input and output power wiring together internal to the
drive/panel/cabinet.
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Serial communication may be included with the low voltage or routed
separately.
•
A minimum three-inch bend radius for coax cables should be
maintained.
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Stripping off signal wire insulation for termination should not result in
excessive exposed bare wire.
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Electrical safety and improved mechanical capabilities also require that
the terminals crimp on to the insulation on the back half of the terminal.
Approved crimpers will accomplish this automatically when used
correctly.
•
Shield terminations need to be as short as possible 2.5 inches maximum
length. Smart Trac wiring paths will, when followed properly, allow
this length to be less than 1 inch.
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Use heat shrink tubing over all bare shield drain wires.
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When a noise filter (model – 05P00325-0023) is installed it should be
mounted near the drive to allow its existing wires to be connected to the
terminals of the drive L1, L2, L3. Lead extensions are not allowed.
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Within the panel motor encoder leads, encoder power and encoder
output signals wires shall be bundled alone not with power or ac
control wiring.
•
The drives are electrically connected to the drive panels by removing
paint at the mounting locations, and using star washers on the mounting
hardware. Alternately, RivNuts may be used to mount the drive to the
panel.
•
Drive panels are likewise electrically connected to the enclosures.
Adhere to the following requirements and recommendations when installing
your Smart Trac AC1:
•
Steel conduit is recommended.
•
Shielded motor power cables are recommended.
•
Ground AC control wiring (typically 115 VAC) neutral for relay
signals, where codes permit. Route this wiring separately from power
and separately from low voltage wiring.
Wiring Requirements
for Shop Wiring
Wiring Requirements
and
Recommendations
for Field Installation: