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RAD Data comm ARC-101 Manual de usuario Pagina 59

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Rockwell Automation Publication 750-TD001H-EN-P - June 2013 59
PowerFlex 750-Series AC Drives
Cable Considerations
Power Cable Types Acceptable for 200…600 Volt Installations
A variety of cable types are acceptable for drive installations. For an in depth discussion of cable types, including a table of
maximum motor cable lengths, refer to the Wiring and Grounding Guidelines for Pulse Width Modulated (PWM) AC
Drives, publication DRIVES-IN001.
Recommended Cable Design
Wiring Considerations
Rating/Type Description
600V
75 °C (167 °F)
• Four tinned copper conductors with XLPE insulation.
• Copper braid/aluminum foil combination shield and tinned copper drain wire.
• PVC jacket.
Type Wire Type(s) Description Min. Insulation Rating
Power
(1)
(2)
(1) Control and signal wires should be separated from power wires by at least 0.3 meters (1 foot).
(2) The use of shielded wire for AC input power may not be necessary but is always recommended.
Standard – • Four tinned copper conductors with XLPE insulation.
• Copper braid/aluminum foil combination shield and tinned
copper drain wire.
• PVC jacket.
600V,
75 °C (167 °F)
Signal
(1)
(3)
(4)
(3) If the wires are short and contained within a cabinet which has no sensitive circuits, the use of shielded wire may not be necessary, but is always recommended.
(4) I/O terminals labeled “(–)” or “Common” are not referenced to earth ground and are designed to greatly reduce common mode interference. Grounding these terminals can cause signal noise. For
CE installations, 115V I/O must use shielded cable or have a cable length less than 30 m (98 ft).
Standard Analog I/O – 0.750 mm
2
(18 AWG), twisted pair, 100% shield w/drain. 300V,
75…90 °C (167…194 °F)
Remote Pot – 0.750 mm
2
(18 AWG), 3 conductor, shielded.
Encoder/
Pulse I/O
<30 m (100 ft)
Combined 0.196 mm
2
(24 AWG) individually shielded pairs.
Encoder/
Pulse I/O
30 to 152 m
(100 to 500 ft)
Signal 0.196 mm
2
(24 AWG) individually shielded pairs.
Power 0.750 mm
2
(18 AWG) in.dividually shielded pairs
Combined 0.330 mm
2
(22 AWG), power is 0.500 mm
2
(20AWG) individually
shielded pairs.
Encoder/
Pulse I/O
152 to 259 m
(500 to 850 ft.)
Signal 0.196 mm
2
(24 AWG) individually shielded pairs.
Power 0.750 mm
2
(18 AWG) individually shielded pairs.
Combined 0.750 mm
2
(18 AWG) individually shielded pairs.
Digital I/O
Safety Inputs
Homing Inputs
(1)
(3)
(4)
Un-shielded – Per US NEC or applicable national or local code. 300V,
60 °C (140 °F)
Shielded Multi-conductor
shielded cable
0.750 mm
2
(18 AWG), 3 conductor, shielded.
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