1764-28BXB Allen-Bradley MicroLogix 1500 Base Unit
$123.00
$320.00
Description
Allen-Bradley 1764-28BXB MicroLogix 1500 Base Unit
Configured for discrete I/O execution in MicroLogix 1500 controller systems, the Allen-Bradley 1764-28BXB (1764 MicroLogix 1500 Base Unit) provides direct physical/electrical interface handling for 24 VDC inputs, relay outputs, and high-speed transistor I/O channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1764-28BXB |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.44 lbs |
| Power Consumption | 30 W maximum usage rating |
| Product Type | PLC Base Unit |
| Product Family | MicroLogix 1500 |
| Line Power | 24 VDC |
| Standard Inputs | 8 x 24 VDC inputs |
| Fast Inputs | 8 x 24 VDC fast inputs |
| High-Speed Inputs | 8 channels at 20 kHz |
| Relay Outputs | 6 relay outputs |
| Standard Outputs | 4 x 24 VDC FET outputs |
| Fast Outputs | 2 x 24 VDC FET outputs |
| High-Speed Outputs | 2 channels at 20 kHz |
| Terminal Screw Torque | 1.13 Nm rated, 1.3 Nm maximum |
EtherNet/IP and I/O Interface Characteristics
The 1764-28BXB base unit is configured for MicroLogix 1500 PLC architectures requiring mixed discrete signal processing. The unit provides eight standard 24 VDC input points and eight fast input points for pulse or rapid state detection. High-speed input and output channels support operation at 20 kHz for motion-related or counting applications.
The Allen-Bradley MicroLogix 1500 platform supports deterministic controller-to-I/O execution through the internal system bus. I/O density scaling is defined by the base unit configuration, with relay and transistor output combinations available for different machine control requirements.
Frequently Asked Questions
Q: Does the 1764-28BXB provide both relay and transistor outputs?
A: Yes. The base unit includes six relay outputs, four standard 24 VDC FET outputs, and two fast 24 VDC FET outputs.
Q: What is the input signal type supported by the high-speed inputs?
A: The high-speed inputs are 24 VDC channels designed for high-frequency input processing up to 20 kHz.
Q: Is the 1764-28BXB a standalone PLC controller?
A: No. The 1764-28BXB is a MicroLogix 1500 base unit designed as the I/O and power interface section of a PLC system.
Field Installation Guidelines
Install the 1764-28BXB on a suitable control panel surface with adequate clearance for terminal access and wiring maintenance. Verify the 24 VDC power source polarity before connection.
Route DC power wiring separately from high-voltage AC conductors and high-noise switching circuits. Use shielded cable practices for signal wiring where required by the application environment, with cable shields bonded according to site grounding standards.
Tighten terminal screws within the specified torque range to maintain electrical contact integrity. Confirm input and output channel assignments before system commissioning to prevent incorrect field device connection.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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