The 1762-OW16/B is a 16-point relay output expansion module from Rockwell Automation's MicroLogix series.
It is designed for MicroLogix 1100, 1200, and 1400 series programmable logic controllers (PLCs) to increase the number of output points in a control system. This module supports both AC and DC voltage types and controls external loads via relay contacts, making it suitable for various industrial automation scenarios.
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Core Features
- ✓ 16-Point Relay Output: Provides 16 independent relay output channels, each with a maximum continuous current of 2.5A, capable of directly driving small to medium-sized loads.
- ✓ AC/DC Universal: Supports a wide voltage range of 5-265V AC and 5-125V DC, adaptable to various control requirements.
- ✓ Dual Isolated Outputs: Divided into two groups (outputs 0-7 and 8-15), each group is isolated from the others, allowing connection to loads of different voltage levels.
- ✓ LED Status Indicator: Each output channel has an independent LED indicator for easy on-site fault diagnosis and status monitoring.
Technical Specifications
| Brand |
Allen Bradley
|
| Model / Part Number |
1762-0W16/B |
| Product Series |
MicroLogix 1762 Expansion Module |
| Compatible Controllers |
MicroLogix 1100 / 1200 / 1400 Series |
| Number of Outputs |
16, Relay Type |
| Voltage Range |
5-265V AC / 5-125V DC |
| Current Per Point |
2.5 A Continuous Current |
| Current Per Common Terminal |
8 A Maximum |
| On/Off Delay |
10 ms (Resistive Load) |
| Bus Current Consumption |
180 mA @ 24V DC |
| Isolation Groups |
2 (Outputs 0-7 and 8-15) |
| Dimensions (H x W x D) |
90 x 40.4 x 87 mm |
| Operating Temperature |
-20 to 65 °C |
| Mounting Method |
DIN rail or panel mount |
Frequently Asked Questions
Q: What types of loads is the 1762-OW16/B suitable for controlling?
A: This module is ideal for controlling various AC or DC loads, such as motor contactors, solenoid valves, indicator lights, relays, and indicator lights. The 2.5A contact capacity per channel is sufficient to directly drive small to medium-sized equipment. However, for high-current loads (such as large motors), it is recommended to use this module to control an external high-capacity contactor for indirect control to extend the module's contact life.
Q: The module's output indicator light is on, but the load is not moving. What could be the reason?
A: An on output indicator light only indicates that the PLC logic is connected, but it does not mean that the external circuit is conducting. Common causes include: ① Lack of external power supply (check if the common terminal is connected to power); ② Loose or incorrect wiring; ③ Burnt-out contacts (especially when frequently switching inductive loads). Field cases show that a faulty relay contact supplying power to the module can also cause this phenomenon. It is recommended to use a multimeter to measure the continuity across the output contacts to quickly locate the problem.
Q: Which PLC controllers can the 1762-OW16/B be used with? What is the maximum number of expansion slots?
A: This module is compatible with MicroLogix 1100, 1200, and 1400 series controllers. The number of expansion slots depends on the controller model and power supply load capacity: a maximum of 4 can be installed with MicroLogix 1100, a maximum of 6 with MicroLogix 1200, and the strongest expansion capability is achieved with MicroLogix 1400. During installation, ensure that the distance between the module and the power supply does not exceed 6 module slots.
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