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

Page 296

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296

Publication 1756-UM009C-EN-P - December 2010

Appendix A Analog I/O Module Specifications

Thermal dissipation

Voltage: 7.84 BTU/hr
Current: 13.3 BTU/hr

Input impedance

Voltage: >10 M

Ω

Current: 249

Ω

Open circuit detection time

Differential voltage - Positive full scale reading within 5 s

Single-ended/differential current - Negative full scale
reading within 5 s

Single-ended voltage - Even numbered channels go to
positive full scale reading within 5 s, odd numbered
channels go to negative full scale reading within 5 s

Overvoltage protection, max

Voltage: 30V DC
Current: 8V DC

Normal mode noise rejection

>80 dB @ 60 Hz

(1)

Common mode noise rejection

100 dB @ 50/60 Hz

Channel bandwidth

15 Hz (-3 dB)

(1)

Settling time

<80 ms to 5% of full scale

(1)

Calibrated accuracy 25 °C (77 °F)

Voltage: Better than 0.05% of range
Current: Better than 0.15% of range

Offset drift

45

μ

V/°C

Gain drift with temperature

Voltage: 15 ppm
Current: 20 ppm

Module error

Voltage: 0.1% of range
Current: 0.3% of range

Module input scan time, min

16 pt single-ended: 16…488 ms
8 pt differential: 8…244 ms
4 pt differential: 5…122 ms

(1)

Isolation voltage

250V (continuous), reinforced insulation type,
inputs-to-backplane
No isolation between individual inputs

Routine tested at 1350V AC for 2 s

Removable terminal block

1756-TBCH
1756-TBS6H

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

(2)

Wire category

2

(3)

North American temperature code

T4A

IEC temperature code

T4

Enclosure type

None (open-style)

(1)

Notch filter dependent.

(2)

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

(3)

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-IF16

Attribute

1756-IF16