Product Description
Product Overview
The Allen-Bradley 1756-IF6I is an Isolated Analog Input (A/I) Module designed for ControlLogix® systems. It provides six individually isolated channels, ensuring high accuracy and reliability in industrial automation applications.
Technical Specifications
General Information
| Attribute |
Value |
| Number of Inputs |
6 individually isolated channels |
| Module Location |
1756 ControlLogix Chassis |
| Backplane Current |
250mA @ 5.1V DC, 100mA @ 24V DC |
| Backplane Power Consumption |
3.7W |
| Power Dissipation |
3.7W (Voltage Mode), 4.3W (Current Mode) |
| Thermal Dissipation |
12.62 BTU/hr (Voltage), 14.32 BTU/hr (Current) |
Input Specifications
| Attribute |
Value |
| Input Ranges |
±10.5V, 0-10.5V, 0-5.25V, 0-21mA |
| Resolution |
|
| ±10.5V Range |
343µV/count |
| 0-10.5V Range |
171µV/count |
| 0-5.25V Range |
86µV/count |
| 0-21mA Range |
0.34µA/count |
| Data Format |
2’s Complement (Integer Mode), IEEE 32-bit Floating Point Mode |
| Input Impedance |
>10MΩ (Voltage), 249Ω (Current) |
| Overvoltage Protection |
120V AC/DC (Voltage), 8V AC/DC (Current) |
| Normal Mode Noise Rejection |
60dB at 60Hz |
| Common Mode Noise Rejection |
120dB at 60Hz, 100dB at 50Hz |
| Channel Bandwidth |
15Hz (-3dB) |
| Settling Time to 5% FS |
<80ms |
Accuracy & Calibration
| Attribute |
Value |
| Calibrated Accuracy (Typical) |
0.05% of range |
| Calibrated Accuracy (Worst Case) |
0.1% of range |
| Calibration Interval |
12 months |
| Temperature Drift (Input Offset) |
2µV/°C |
| Gain Drift (Typical) |
35 ppm/°C (Voltage), 45 ppm/°C (Current) |
| Gain Drift (Worst Case) |
80 ppm/°C (Voltage), 90 ppm/°C (Current) |
| Module Error Over Full Temperature Range |
0.54% of range |
Performance & Isolation
| Attribute |
Value |
| Minimum Module Scan Time |
25ms (Floating Point Mode), 10ms (Integer Mode) |
| Isolation Voltage (Channel-to-Channel & User-to-System) |
1700V DC for 1s (Based on 250V AC) |
| Module Conversion Method |
Sigma-Delta |
Physical & Wiring Requirements
| Attribute |
Value |
| RTB & Housing |
20 Position RTB (1756-TBNH or TBSH) |
| Wire Size |
#22 to #14 AWG (0.324 to 2.08 mm²) stranded |
| Screw Torque (RTB - NEMA) |
7-9 in-lbs (0.8-1Nm) |
Environmental Ratings
| Attribute |
Value |
| Operating Temperature |
0°C to 60°C (32°F to 140°F) |
| Storage Temperature |
-40°C to 85°C (-40°F to 185°F) |
| Relative Humidity |
5% to 95% non-condensing |
| Vibration Resistance |
2g @ 10-500Hz |
| Shock Resistance (Operating) |
30g |
| Shock Resistance (Non-Operating) |
50g |
Certifications & Compliance
-
UL: UL Listed Industrial Control Equipment
-
CSA: CSA Certified for Process Control Equipment
-
CE: Compliant with European EMC Directive
-
C-Tick: Compliant with Australian Radiocommunications Act
-
Hazardous Location Ratings: CSA Certified for Class I, Division 2 Group A, B, C, D
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