Allen-Bradley 1756-HYD02 Hydraulic Servo Module
$123.00
$320.00
Description
Allen-Bradley 1756-HYD02 Hydraulic Servo Module
Configured for multi-axis hydraulic servo loop control in ControlLogix backplane architecture, the Allen-Bradley 1756-HYD02 (1756-HYD02 Hydraulic Servo Module) provides direct physical/electrical execution. The module processes two-axis closed-loop hydraulic control using PID with feed-forward and directional scaling. It supports 32-bit floating-point gain resolution, ±10 V analog output, and optically isolated registration inputs. Control execution is synchronized through the ControlLogix chassis backplane with selectable update rates from 500 Hz to 4 kHz.
Suffix Breakdown & Model Matrix
No formal suffix segmentation is defined for 1756-HYD02.
The identifier is treated as a single catalog-level module code within the 1756 ControlLogix hydraulic servo family.
All functional behavior is determined by firmware and chassis configuration rather than suffix expansion.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-HYD02 |
| Brand | Allen-Bradley |
| Weight | 0.23 kg |
| Power Consumption | 5.5 W (dissipation) |
| Product Type | Hydraulic Servo Module |
| Series | 1756 ControlLogix |
| Axes per Module | 2 |
| Axes per Controller | 32 |
| Analog Output | ±10 V DC |
| Analog Output Resolution | 16 bit |
| Servo Loop Type | PID with feed-forward and directional scaling |
| Gain Resolution | 32-bit floating point |
| Update Rate | 500 Hz to 4 kHz selectable |
| LDT Input | PWM, start/stop edge detection |
| Registration Input | Optically isolated current sinking input |
| Discrete Outputs | Solid-state isolated relay contacts |
| Discrete Output Voltage | 24 V DC nominal |
| Backplane Current (5 V) | 700 mA |
| Backplane Current (24 V) | 2.5 mA |
| Terminal Blocks | 1756-TBCH, 1756-TBS6H |
| Mounting Location | ControlLogix chassis (any slot) |
| Slot Width | 1 slot |
ControlLogix Backplane Bus Synchronization Characteristics
The 1756-HYD02 executes real-time axis control through the ControlLogix backplane scheduling layer. Data exchange uses deterministic cyclic updates aligned with chassis scan intervals.
Backplane communication supports tight synchronization between motion task execution and I/O update windows. Firmware-level execution ensures consistent PID loop timing across both hydraulic axes.
I/O mapping uses isolated channels to reduce cross-channel electrical coupling during ±10 V analog actuation and high-speed LDT feedback acquisition.
Frequently Asked Questions (FAQ)
Q: How many hydraulic axes does the 1756-HYD02 support?
A: The module supports two independent hydraulic servo axes with separate loop execution per channel.
Q: What is the update rate range of the control loop?
A: The selectable servo update rate ranges from 500 Hz to 4 kHz depending on controller configuration.
Q: What type of backplane current loading does the module impose?
A: It draws 700 mA from the 5 V backplane rail and 2.5 mA from the 24 V rail.
Field Installation Guidelines
Install the module only in a powered-down ControlLogix chassis. Insert into any available slot with full seating into the backplane connector.
Use 1756-TBCH or 1756-TBS6H terminal blocks with correct mechanical locking. Maintain separation between ±10 V analog output wiring and high-current switching conductors.
Route LDT and registration input cables using shielded twisted pair. Bond cable shields at chassis ground termination point only. Avoid parallel routing with high-frequency PWM or relay output lines.
Ensure chassis backplane connectors remain free of contamination before module insertion.
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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