Allen-Bradley 20A Installation Instructions

Rockwell Automation Publication 750-IN001P-EN-P - April 2017 227
I/O Wiring Chapter 5
Table 50 - Common DC Input Drive Assembly I/O Terminal Block and Connector Specifications
Table 51 - I/O Wire Recommendations
Name Wire Size Range
mm
2
(AWG)
Torque
N•m (lb•in)
Strip
Length
Max Min Max Recommended
Common DC input TB1…TB5 4.0 (12) 0.25 (24) 0.5 (4.4) 0.4 (3.5) 7 (0.28)
Fiber Interface PCB Connector P13 4.0 (12) 0.25 (24) 0.5 (4.4) 0.4 (3.5) 7 (0.28)
Fiber Interface PCB Connector P14 2.5 (14) 0.3 (28) 0.25 (2.2) 0.2 (1.8) 6 (0.24)
Type Wire Types Description Min Insulation
Rating
Signal
(1)(2)(3)
Standard analog I/O – 0.750 mm
2
(18AWG), twisted-pair, 100% shield with
drain.
300V,
75…90 °C
(167…194 °F)
Remote pot – 0.750 mm
2
(18AWG), 3 conductor, shielded.
Encoder/
Pulse I/O
<30 m (98.4 ft)
Combined 0.196 mm
2
(24AWG)
Individually shielded pairs.
Encoder/
Pulse I/O
30…152 m
(100…500 ft)
Signal 0.196 mm
2
(24AWG)
Individually shielded pairs.
Power 0.750 mm
2
(18AWG) in.dividually shielded pairs
Combined 0.330 mm
2
(22AWG), power is 0.500 mm
2
(20AWG)
individually shielded pairs.
Encoder/
Pulse I/O
152…259 m
(500…850 ft)
Signal 0.196 mm
2
(24AWG)
Individually shielded pairs.
Power 0.750 mm
2
(18AWG) individually shielded pairs.
Combined 0.750 mm
2
(18AWG) individually shielded pairs.
Digital I/O
Safety Inputs
Homing Inputs
(1)(2)(3)(4)
Shielded Multi-conductor shielded cable 0.750 mm
2
(18AWG), 3 conductor, shielded. 300V,
60 °C (140 °F)
Digital I/O
Homing Inputs
(1)(2)(3)
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 is not necessary, but is always recommended.
(3) I/O terminals that are labeled “(–)” or “Common” are not referenced to Earth Ground and are designed to reduce common mode interference. Grounding these terminals can cause signal noise.
(4) Safety option modules 20-750-S and 20-750-S1 require shielded cable.

Allen-Bradley 20A Specifications

General

Brand	Allen-Bradley
Model	20A
Category	Controller
Language	English