Description
The Allen-Bradley 1756-HYD02 is a specialized ControlLogix Hydraulic Servo Module designed to provide precise motion control for hydraulic systems. This module supports two axes per unit, enabling high-performance positioning and velocity control in industrial automation applications. It integrates directly into the ControlLogix backplane, allowing for seamless communication with the controller and other I/O modules.
Features
- Supports control for up to two independent hydraulic axes per module.
- High-resolution 32-bit floating point gain settings.
- Selectable update rates ranging from 500 Hz to 4 kHz.
- Compatible with PWM, Start/Stop (rising or falling edge) LDT inputs.
- Includes an optically isolated, current-sinking registration input.
- Provides ±10V DC analog output with 16-bit resolution.
- Features solid-state isolated relay contacts for discrete output control.
Applications
This module is engineered for demanding hydraulic motion control tasks, including injection molding machines, heavy-duty presses, material handling systems, and other industrial processes requiring precise position and rate control of hydraulic actuators.
Technical Specifications
| Model |
1756-HYD02 |
| Axes per Module |
2 |
| Axes per Controller |
32 |
| Analog Output |
±10V DC |
| Analog Output Resolution |
16 bits |
| Backplane Current (5V) |
700 mA |
| Backplane Current (24V) |
2.5 mA |
| Power Dissipation |
5.5 Watts |
| Absolute Position Range |
230,000 LDT counts |
Installation Guidelines
- Ensure the ControlLogix chassis is powered down before inserting or removing the module.
- Verify that the module is fully seated in the chassis slot and the top/bottom retaining screws are tightened to secure the connection.
- Use shielded cables for LDT and analog signals to minimize electromagnetic interference (EMI) in high-noise industrial environments.
- Maintain proper grounding practices for the chassis to ensure signal integrity and safety.
- Ensure adequate airflow within the cabinet to accommodate the 5.5W power dissipation.
FAQ
What is the primary function of the 1756-HYD02?
It is a dedicated motion control module used to interface with hydraulic servo systems, providing the necessary analog outputs and LDT inputs to manage hydraulic axis positioning.
How many axes can I control with this module?
Each 1756-HYD02 module supports two axes. A single ControlLogix controller can support up to 32 axes in total depending on system configuration.
Is the registration input isolated?
Yes, the registration input is optically isolated and configured as a current-sinking input.
