28 Rockwell Automation Publication 22C-UM001J-EN-E - January 2017
Chapter 1 Installation/Wiring
I/O Wiring Recommendations
Motor Start/Stop Precautions
Important points to remember about I/O wiring:
• Always use copper wire.
• Wire with an insulation rating of 600V or greater is recommended.
• Control and signal wires should be separated from power wires by at
least 0.3 meters (1 foot).
•
Control Wire Types
I/O Terminal Block
ATTENTION: A contactor or other device that routinely disconnects and
reapplies the AC line to the drive to start and stop the motor can cause drive
hardware damage. The drive is designed to use control input signals that will
start and stop the motor. If used, the input device must not exceed one
operation per minute or drive damage can occur.
ATTENTION: The drive start/stop control circuitry includes solid-state
components. If hazards due to accidental contact with moving machinery or
unintentional flow of liquid, gas or solids exist, an additional hardwired stop
circuit may be required to remove the AC line to the drive. When the AC line is
removed, there will be a loss of any inherent regenerative braking effect that
might be present - the motor will coast to a stop. An auxiliary braking
method may be required.
ATTENTION: Driving the 4-20 mA analog input from a voltage source could
cause component damage. Verify proper configuration prior to applying
input signals.
Table 7 - Recommended Control and Signal Wire
(1)
(1) 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.
Wire Type(s) Description Minimum Insulation Rating
Belden 8760/9460
or equivalent
0.8 mm
2
(18 AWG), twisted pair,
100% shield with drain
300V
60 °C
(140 °F)
Belden 8770
or equivalent
0.8 mm
2
(18 AWG), 3 conductor,
shielded for remote pot only.
Table 8 - I/O Terminal Block Specifications
Frame Maximum Wire Size
(1)
(1) Maximum/minimum sizes that the terminal block will accept - these are not recommendations.
Minimum Wire Size
(1)
Torque
All 1.3 mm
2
(16 AWG) 0.13 mm
2
(26 AWG) 0.5...0.8 N-m (4.4...7 lb-in)
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