1769-IQ32T | Allen-Bradley Digital I/O Modules
The 1769-IQ32T is a high-density 32-channel discrete input module engineered for Allen-Bradley CompactLogix systems and MicroLogix 1500 expansion racks. Operating at a 24 VDC nominal rating, the module interfaces ON/OFF field signals from switches, sensors, and auxiliary contacts to the control system. It utilizes a 40-pin front connector or the Allen-Bradley 1492 pre-wired interface system to maintain organized panel wiring despite its high channel count.
High-Density Channel Grouping and Isolation
The 32 digital input channels are divided into four isolated groups of eight points each. Every group supports independent sinking or sourcing field wiring configurations, enabling flexible integration of mixed sensor signal types on a single module.
Operating at 10 to 30 VDC (derated to 10–26.4 VDC at 60 °C), each channel features a hardware ON-state propagation delay of 8 ms with a minimum ON-state voltage threshold of 10 VDC (19 VDC continuous limit at 60 °C). The inputs meet IEC Type 1+ input specifications and draw a maximum inrush current of 5 mA per point.
System Connectivity and Physical Mounting
The 1769-IQ32T communicates over the Compact I/O backplane bus via a side-sliding bus lever. It features a Power Supply Distance Rating of 8, requiring installation within eight module slots of a system power supply (such as the 1769-PA2, 1769-PB2, 1769-PA4, or 1769-PB4).
The module mounts to standard DIN rail or directly to a panel enclosure, withstanding operational vibration up to 5 g (10–500 Hz) and shock loads up to 30 g for panel mounting (20 g for DIN rail). Front panel write-on terminal labels remain visible when the door is closed for channel identification during maintenance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-IQ32T |
| Brand | Allen-Bradley |
| Product Line | CompactLogix / Compact I/O |
| Product Type | Discrete Input Module |
| Number of Inputs | 32 points (4 groups of 8 channels) |
| Voltage Category | 24 VDC Sink/Source (IEC Type 1+) |
| Operating Voltage Range | 10–30 VDC @ 30 °C (86 °F) / 10–26.4 VDC @ 60 °C (140 °F) |
| ON-State Voltage Range | 10 to 30 VDC (min 19 VDC @ 60 °C) |
| OFF-State Voltage (Max) | 5 VDC |
| Input Hardware Delay | 8 ms (ON) |
| Maximum Inrush Current | 5 mA |
| Front Wiring Accessory | 40-pin female connector (1746-N3) / 1492 Wiring System |
| Terminal Wiring Gauge | 22–14 AWG solid copper (90 °C) |
| Power Supply Distance Rating | 8 modules |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Vibration / Shock Rating | 5 g @ 10–500 Hz / 30 g panel (20 g DIN rail) |
| Weight | 0.26 kg (0.56 lbs) |
Frequently Asked Questions
Q: How are field wiring connections made to the high-density 1769-IQ32T module? A: Connections use the included 40-pin female wiring connector (1746-N3) or Allen-Bradley 1492 pre-wired cable systems, as standard screw terminal blocks are not used due to panel density.
Q: Can sinking and sourcing sensors be connected to the same 1769-IQ32T module? A: Yes, because the 32 channels are split into four isolated groups of eight points, each group can be wired individually for sinking or sourcing configurations.
Q: What power supplies are compatible for powering the backplane of this module? A: Compatible 1769 system power supplies include the 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4.
1769-IQ32T | Allen-Bradley Digital I/O Modules
1769-IQ32T | Allen-Bradley Digital I/O Modules
The 1769-IQ32T is a high-density 32-channel discrete input module engineered for Allen-Bradley CompactLogix systems and MicroLogix 1500 expansion racks. Operating at a 24 VDC nominal rating, the module interfaces ON/OFF field signals from switches, sensors, and auxiliary contacts to the control system. It utilizes a 40-pin front connector or the Allen-Bradley 1492 pre-wired interface system to maintain organized panel wiring despite its high channel count.
High-Density Channel Grouping and Isolation
The 32 digital input channels are divided into four isolated groups of eight points each. Every group supports independent sinking or sourcing field wiring configurations, enabling flexible integration of mixed sensor signal types on a single module.
Operating at 10 to 30 VDC (derated to 10–26.4 VDC at 60 °C), each channel features a hardware ON-state propagation delay of 8 ms with a minimum ON-state voltage threshold of 10 VDC (19 VDC continuous limit at 60 °C). The inputs meet IEC Type 1+ input specifications and draw a maximum inrush current of 5 mA per point.
System Connectivity and Physical Mounting
The 1769-IQ32T communicates over the Compact I/O backplane bus via a side-sliding bus lever. It features a Power Supply Distance Rating of 8, requiring installation within eight module slots of a system power supply (such as the 1769-PA2, 1769-PB2, 1769-PA4, or 1769-PB4).
The module mounts to standard DIN rail or directly to a panel enclosure, withstanding operational vibration up to 5 g (10–500 Hz) and shock loads up to 30 g for panel mounting (20 g for DIN rail). Front panel write-on terminal labels remain visible when the door is closed for channel identification during maintenance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-IQ32T |
| Brand | Allen-Bradley |
| Product Line | CompactLogix / Compact I/O |
| Product Type | Discrete Input Module |
| Number of Inputs | 32 points (4 groups of 8 channels) |
| Voltage Category | 24 VDC Sink/Source (IEC Type 1+) |
| Operating Voltage Range | 10–30 VDC @ 30 °C (86 °F) / 10–26.4 VDC @ 60 °C (140 °F) |
| ON-State Voltage Range | 10 to 30 VDC (min 19 VDC @ 60 °C) |
| OFF-State Voltage (Max) | 5 VDC |
| Input Hardware Delay | 8 ms (ON) |
| Maximum Inrush Current | 5 mA |
| Front Wiring Accessory | 40-pin female connector (1746-N3) / 1492 Wiring System |
| Terminal Wiring Gauge | 22–14 AWG solid copper (90 °C) |
| Power Supply Distance Rating | 8 modules |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Vibration / Shock Rating | 5 g @ 10–500 Hz / 30 g panel (20 g DIN rail) |
| Weight | 0.26 kg (0.56 lbs) |
Frequently Asked Questions
Q: How are field wiring connections made to the high-density 1769-IQ32T module? A: Connections use the included 40-pin female wiring connector (1746-N3) or Allen-Bradley 1492 pre-wired cable systems, as standard screw terminal blocks are not used due to panel density.
Q: Can sinking and sourcing sensors be connected to the same 1769-IQ32T module? A: Yes, because the 32 channels are split into four isolated groups of eight points, each group can be wired individually for sinking or sourcing configurations.
Q: What power supplies are compatible for powering the backplane of this module? A: Compatible 1769 system power supplies include the 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4.
