The Allen-Bradley 1756-HYD02 is a specialized ControlLogix Hydraulic Servo Module designed to provide precise control for hydraulic systems. This module enables users to manage motion control applications by interfacing directly with hydraulic actuators, providing high-resolution feedback and reliable output signals to ensure accurate positioning and velocity regulation.
Features
Dual-axis control capability per module
High-resolution 32-bit floating point gain
Selectable update rates ranging from 500Hz to 4kHz
Integrated support for PWM and Start/Stop LDT inputs
Optically isolated registration input for noise immunity
16-bit resolution on ±10V DC analog outputs
Integrated solid-state isolated relay contacts for discrete control
Technical Specifications
Product Model
1756-HYD02
Axes per Module
2
Axes per Controller
Up to 32
Analog Output
±10V DC
Analog Resolution
16 bits
Backplane Current (5V)
700 mA
Backplane Current (24V)
2.5 mA
Total Power Dissipation
5.5 Watts
Discrete Output Voltage
24V DC (Nominal)
Installation Guidelines
Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-HYD02 module to prevent damage to the backplane connectors.
Use shielded cables for LDT and analog I/O to minimize electromagnetic interference (EMI) in industrial environments.
Maintain proper grounding practices for the module to ensure signal integrity and compliance with safety standards.
Verify that the backplane power supply is correctly sized to accommodate the 700mA load at 5V required by this module.
Route signal wiring away from high-voltage AC power lines to prevent induced noise.
FAQ
What is the primary function of the 1756-HYD02?
This module is engineered for hydraulic motion control, providing the necessary interface to read LDT (Linear Displacement Transducer) feedback and output analog signals to control hydraulic valves.
How many axes can I control with this module?
The 1756-HYD02 supports 2 axes per module. When integrated into a ControlLogix system, the controller can support up to 32 axes total.
What type of LDT input does this module accept?
The module supports PWM (Pulse Width Modulation) and Start/Stop (rising or falling edge) LDT inputs for flexible sensor integration.
