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Rockwell Automation 1756-XXXX ControlLogix Analog I/O Modules User Manual

Page 317

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Publication 1756-UM009C-EN-P - December 2010

317

Analog I/O Module Specifications Appendix A

Current draw @ 24V

225 mA for 0...550 W loads terminated on OUTs and RTNs
(Total backplane power in this range 6.7 W)
300 mA for 551...1000 W loads terminated on OUTs and ALTs
(Total backplane power in this range 8.5 W)

Power dissipation, max

5.5 W (0…550

Ω

loads)

6.1 W (551…1000

Ω

loads)

Thermal dissipation

18.76 BTU/hr (0…550

Ω

loads)

20.80 BTU/hr (551…1000

Ω

loads)

Open circuit detection

None

Overvoltage protection

24V DC

Short circuit protection

Electronically current limited to 21mA or less

Drive capability

0…1000

Ω

Separate field terminations for 0…550

Ω

and 551…1000

Ω

Settling time

< 2 ms to 95% of final value with resistive loads

Calibrated accuracy

4…21 mA: better than 0.1% of range @ 25 °C (77 °F)

Calibration interval

6 months

Offset drift

1

μ

A/°C

Gain drift with temperature

60 ppm/°C, 100 ppm/°C max

Module error

0.6% of range

Module scan time

25 ms max floating point
10 ms max integer

Isolation voltage

250V (continuous), basic insulation type, output
channels-to-backplane, and output channel-to-channel

Routine tested at 1350V AC for 2 s

Removable terminal block

1756-TBNH
1756-TBSH

Slot width

1

Wire size

0.33…2.1 mm

2

(22…14 AWG) solid or stranded copper wire

rated at 90 °C (194 °F), or greater, 1.2 mm (0.047 in.)
insulation max

(1)

Wire category

2

(2)

North American temperature code

T4A

IEC temperature code

T4

Enclosure type

None (open-style)

(1)

Maximum wire size requires extended housing, catalog number 1756-TBE.

(2)

Use this conductor category information for planning conductor routing as described in the system-level

installation manual. See the Industrial Automation Wiring and Grounding Guidelines, publication

1770-4.1.

Technical Specifications - 1756-OF6CI

Attribute

1756-OF6CI