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Rockwell Automation Publication 20B-IN019E-EN-P - July 2013
PowerFlex 700 Adjustable Frequency AC Drive – Frames 0…6
Step 4: I/O Wiring
Important points to remember about I/O wiring:
•
Use Copper wire only. Wire gauge requirements and recommendations are
based on 75 degrees C. Do not reduce wire gauge when using higher
temperature wire.
•
Wire with an insulation rating of 600V or greater is recommended.
•
Separate control and signal wires from power wires by at least 0.3 meters (1
foot).
Wire Recommendations
IMPORTANT
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.
ATTENTION:
Configuring an analog input for 0…20 mA operation and driving
it from a voltage source could cause component damage. Verify proper
configuration prior to applying input signals.
ATTENTION:
Hazard of personal injury or equipment damage exists when
using bipolar input sources. Noise and drift in sensitive input circuits can cause
unpredictable changes in motor speed and direction. Use speed command
parameters to help reduce input source sensitivity.
Type
Wire Type(s)
Description
Min.
Insulation
Rating
Signal
(1) (2) (3)
Standard Analog I/O
Belden 8760/9460 (or equivalent)
0.750 mm
2
(18AWG), twisted pair, 100% shield with drain.
300V,
75…90 °C
(167…194 °F)
Belden 8770 (or equivalent)
0.750 mm
2
(18AWG), 3 conductor, shielded for remote pot only.
Encoder/Pulse I/O
<30 m (100 ft.)
Combined: Belden
9730
(4)
0.196 mm
2
(24AWG), individually shielded
Encoder/Pulse I/O
30 to 152 m
(100 to 500 ft.)
Signal: Belden
9730/9728
(4)
0.196 mm
2
(24AWG), individually shielded
Power: Belden
8790
(5)
0.750 mm
2
(18AWG)
Combined: Belden
9892
(6)
0.330 mm
2
(22AWG) or 0.500 mm
2
(20AWG)
Encoder/Pulse I/O
152 to 259 m
(500 to 850 ft.)
Signal: Belden
9730/9728
(4)
0.196 mm
2
(24AWG), individually shielded
Power: Belden 8790
(5)
0.750 mm
2
(18AWG)
Combined: Belden
9773/9774
(7)
0.750 mm
2
(18AWG), individually shielded
Digital I/O
(1)(2)(3)
Shielded
Multi-conductor shielded cable such as Belden 8770
(or equivalent)
0.750 mm
2
(18AWG), 3 conductor, shielded.
300V,
60 °C (140 °F)
Unshielded
Per US NEC or applicable national or local code
–
(1) Separate control and signal wires from power wires by at least 0.3 meters (1 foot).
(2) If the wires are short and contained within a cabinet that has no sensitive circuits, the use of shielded wire can not be necessary, but is always recommended.
(3) 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.
(4) 9730 is 3 individually shielded pairs (2 c power). If 3 channel is required, use 9728.
(5) 8790 is 1 shielded pair.
(6) 9892 is 3 individually shielded pairs (3 channel) + 1 shielded pair for power.
(7) 9773 is 3 individually shielded pairs (2 c power). If 3 channel is required, use 9774.
