Manual

324 Publication 1756-UM009C-EN-P - December 2010
Appendix A Analog I/O Module Specifications
Current draw @ 24V 210 mA
Power dissipation, max 4.92 W, 4 channel current
Thermal dissipation 16.78 BTU/hr
Open circuit detection Current output only (Output must be set to >0.1 mA)
Overvoltage protection 24V DC
Short circuit protection Electronically current limited to 21 mA or less
Drive capability Voltage: > 2000 Ω
Current: 0…750 Ω
Settling time < 2 ms to 95% of final value with resistive loads
Calibrated accuracy 4…21 mA, -10.4…10.4V: Better than 0.05% of range @
25 °C
Calibration interval 12 months
Offset drift 50 μV/°C
100 nA/°C1 μA/°C
Gain drift with temperature Voltage: 25 ppm/°C max
Current: 50 ppm/°C max
Module error Voltage: 0.15% of range
Current: 0.3% of range
Module scan time 12 ms min floating point
8 ms min integer
Isolation voltage 250V (continuous), reinforced insulation type, output
channels-to-backplane
No isolation between individual output channels
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-OF8
Attribute 1756-OF8