Allen-Bradley 1769-OB32T CompactLogix 32-Channel Output Module
The Allen-Bradley 1769-OB32T, serves as the primary 1769-OB32T Digital Output Modules utilized to execute discrete sourcing control signal distribution across CompactLogix and MicroLogix 1500 platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-OB32T |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.68 kg (1.50 lbs) |
| Dimensions | 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in) |
| Operating Temp | 0 to 60 deg C (32 to 140 deg F) |
| Power Consumption | 220 mA at 5.1 VDC backplane draw (4.67 W heat dissipation) |
| Output Type | 32-Channel Sourcing Digital Output (24 VDC Nominal) |
| Operating Voltage Range | 10.2 to 26.4 VDC |
| Continuous Current Limit | 0.5 A per point, 2.0 A per common, 4.0 A maximum per module |
| Surge Current Limit | 2.0 A per point for 10 ms (repeatable every 2 seconds) |
| On / Off Delay Time | On-state delay: 0.5 ms / Off-state delay: 4.0 ms |
| Power Supply Distance Rating | 8 Modules |
Backplane Bus Communication Velocity and EtherNet/IP Performance
The 1769-OB32T connects directly to the local backplane bus structure, providing high density channel routing with minimal backplane current draw. Featuring a deterministic signal execution profile, the module handles output switching latencies down to 0.5 ms for activation transitions. Backplane bus communication velocity and firmware flash compatibility enable high-density I/O density scaling while maintaining continuous 0.1 mA off-state leakage isolation. Circuit design features reinforced galvanic isolation to prevent transient noise ingress across the main controller chassis.
Frequently Asked Questions
Q: What is the maximum distance the 1769-OB32T module can be installed from its power supply?
A: The module has a power supply distance rating of 8 modules. It must be located within 8 slots of a 1769 power supply on the backplane assembly.
Q: What are the surge current limitations for individual channel outputs on the 1769-OB32T?
A: Each sourcing channel supports a peak surge current of up to 2.0 A for a maximum duration of 10 ms, repeatable every 2 seconds. Continuous load current must not exceed 0.5 A per point or 4.0 A total across the module.
Q: Which replacement wiring accessories are compatible with this module?
A: The module uses the 1769-RTBN18 replacement terminal block (18-pin) and the 1769-RDU replacement door assembly.
Field Installation Guidelines
- Mount the module onto a 35 mm DIN rail or directly to a panel backplate using M4 screws, ensuring functional earth (FE) ground continuity through the DIN rail mounting clips.
- Maintain a minimum vertical clearance of 50 mm (2 inches) above and below the module enclosure for open-type convective airflow and heat dissipation.
- Install the module within 8 expansion slots of the system power supply to comply with the power supply distance rating.
- Terminate field connections using 22 to 14 AWG solid copper wire or 22 to 16 AWG stranded copper wire. Torque terminal block screws to 0.68 Nm (6 in-lbs).
- Verify that the bus lever on the adjacent module is latched correctly to complete the backplane communication loop before applying 24 VDC output power.
Allen-Bradley 1769-OB32T CompactLogix 32-Channel Output Module
Allen-Bradley 1769-OB32T CompactLogix 32-Channel Output Module
The Allen-Bradley 1769-OB32T, serves as the primary 1769-OB32T Digital Output Modules utilized to execute discrete sourcing control signal distribution across CompactLogix and MicroLogix 1500 platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-OB32T |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.68 kg (1.50 lbs) |
| Dimensions | 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in) |
| Operating Temp | 0 to 60 deg C (32 to 140 deg F) |
| Power Consumption | 220 mA at 5.1 VDC backplane draw (4.67 W heat dissipation) |
| Output Type | 32-Channel Sourcing Digital Output (24 VDC Nominal) |
| Operating Voltage Range | 10.2 to 26.4 VDC |
| Continuous Current Limit | 0.5 A per point, 2.0 A per common, 4.0 A maximum per module |
| Surge Current Limit | 2.0 A per point for 10 ms (repeatable every 2 seconds) |
| On / Off Delay Time | On-state delay: 0.5 ms / Off-state delay: 4.0 ms |
| Power Supply Distance Rating | 8 Modules |
Backplane Bus Communication Velocity and EtherNet/IP Performance
The 1769-OB32T connects directly to the local backplane bus structure, providing high density channel routing with minimal backplane current draw. Featuring a deterministic signal execution profile, the module handles output switching latencies down to 0.5 ms for activation transitions. Backplane bus communication velocity and firmware flash compatibility enable high-density I/O density scaling while maintaining continuous 0.1 mA off-state leakage isolation. Circuit design features reinforced galvanic isolation to prevent transient noise ingress across the main controller chassis.
Frequently Asked Questions
Q: What is the maximum distance the 1769-OB32T module can be installed from its power supply?
A: The module has a power supply distance rating of 8 modules. It must be located within 8 slots of a 1769 power supply on the backplane assembly.
Q: What are the surge current limitations for individual channel outputs on the 1769-OB32T?
A: Each sourcing channel supports a peak surge current of up to 2.0 A for a maximum duration of 10 ms, repeatable every 2 seconds. Continuous load current must not exceed 0.5 A per point or 4.0 A total across the module.
Q: Which replacement wiring accessories are compatible with this module?
A: The module uses the 1769-RTBN18 replacement terminal block (18-pin) and the 1769-RDU replacement door assembly.
Field Installation Guidelines
- Mount the module onto a 35 mm DIN rail or directly to a panel backplate using M4 screws, ensuring functional earth (FE) ground continuity through the DIN rail mounting clips.
- Maintain a minimum vertical clearance of 50 mm (2 inches) above and below the module enclosure for open-type convective airflow and heat dissipation.
- Install the module within 8 expansion slots of the system power supply to comply with the power supply distance rating.
- Terminate field connections using 22 to 14 AWG solid copper wire or 22 to 16 AWG stranded copper wire. Torque terminal block screws to 0.68 Nm (6 in-lbs).
- Verify that the bus lever on the adjacent module is latched correctly to complete the backplane communication loop before applying 24 VDC output power.
