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- ABB Bailey
- NKHS03-15
- Hydraulic Servo Terminal Cable
- Sweden (SE)
- 15 feet
- 3 kg
- Xiamen, China
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Product Overview
The ABB Bailey NKHS03-15 Hydraulic Servo Terminal Cable is an industrial pre-terminated servo signal cable used in ABB Bailey INFI 90 / Net 90 Distributed Control Systems (DCS). It is designed to provide a stable and noise-resistant connection between hydraulic servo modules and termination units, ensuring accurate control of hydraulic actuators in industrial automation systems.
This cable is a fixed-length variant of the NKHS03 series, specifically designed for installations requiring a 15-foot (ft) standardized cable run, improving consistency in hydraulic servo loop configurations.
It is widely used in closed-loop hydraulic control systems where signal integrity and precise actuator response are critical.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB (Bailey) |
| Model | NKHS03-15 |
| Product Type | Hydraulic Servo Terminal Cable |
| System Compatibility | ABB Bailey INFI 90 / Net 90 DCS |
| Function | Servo signal transmission between control module and termination unit |
| Connected Modules | IMHSS / SPHSS hydraulic servo modules |
| Termination Side | NTHS / NTDI hydraulic interface units |
| Cable Length | 15 ft (4.57 m) |
| Signal Type | Analog control + feedback signals |
| Shielding | Industrial EMI-shielded construction |
| Installation Type | Pre-terminated industrial servo cable |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5%–95% non-condensing |
| Shipping Weight | 3 kg |
Function and Working Principle
The ABB NKHS03-15 operates as a closed-loop hydraulic servo communication link.
Working principle:
- The servo controller generates hydraulic positioning signals
- Signals are transmitted through the NKHS03-15 cable
- The cable maintains signal integrity using shielding against EMI noise
- Signals reach the termination unit (NTHS / NTDI series)
- Hydraulic actuators respond based on control signals
- Feedback signals return through the same cable path for real-time correction
This ensures high-precision hydraulic motion control and stable feedback regulation.
Role in Industrial Control Systems
Within ABB Bailey INFI 90 / Net 90 systems, the NKHS03-15 plays a key field connection role:
- Connects hydraulic servo modules to termination units
- Enables closed-loop actuator control
- Maintains signal integrity in high-noise environments
- Standardizes cable length for system design consistency
- Supports stable hydraulic response in control loops
It is a critical physical link in hydraulic servo control architecture.
Industrial Applications
The ABB NKHS03-15 is widely used in:
- Power generation turbine control systems
- Oil and gas hydraulic control systems
- Petrochemical process control systems
- Industrial hydraulic positioning systems
- Heavy machinery automation systems
- ABB Bailey legacy DCS hydraulic servo loops
It is especially important in applications requiring precise actuator positioning and stable hydraulic feedback control.
Installation and System Integration
Proper installation ensures optimal performance:
- Installed between hydraulic servo module and termination unit
- Fixed 15 ft length simplifies system layout design
- Requires proper shielding grounding at both ends
- Must avoid routing near high-voltage or high-noise cables
- Installed inside control cabinet or field wiring ducts
- Used with IMHSS / SPHSS servo control modules
- Integrated into hydraulic closed-loop architecture
Compatible System Components
The NKHS03-15 typically works with:
- ABB Bailey hydraulic servo modules (IMHSS / SPHSS series)
- NTHS01 / NTHS03 hydraulic termination units
- NTDI01 signal interface modules
- Hydraulic actuators and servo valves
- DCS controllers and processor modules
- Control cabinet wiring and grounding systems
- Signal conditioning units (system dependent)
Together, these form a complete hydraulic servo control loop system.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| NKHS03-15 | Hydraulic servo cable | Standard 15 ft servo cable | INFI 90 / Net 90 systems |
| NKHS03 | Base servo cable | Custom length configuration | Flexible installations |
| NKHS13-15 | Heavy-duty servo cable | Enhanced durability | Harsh environments |
| NTHS03 | Servo termination unit | Signal interface module | Hydraulic control termination |
| NTDI01 | Interface module | Signal routing and termination | Servo system integration |
Key Advantages
- Ensures stable hydraulic servo signal transmission
- 15 ft standardized length improves system design consistency
- High EMI resistance for industrial environments
- Supports precise closed-loop actuator control
- Compatible with ABB Bailey hydraulic architecture
- Reduces signal distortion and noise interference
- Reliable performance in harsh industrial conditions
Technical FAQs
Q1: What is the main function of ABB NKHS03-15?
It transmits control and feedback signals between hydraulic servo modules and termination units.
Q2: Does it process signals?
No. It only transmits signals in a shielded cable form.
Q3: What systems use NKHS03-15?
It is used in ABB Bailey INFI 90 and Net 90 hydraulic servo systems.
Q4: Why is the 15 ft version used?
It provides a standardized cable length for consistent system layout and installation.
Conclusion
The ABB Bailey NKHS03-15 Hydraulic Servo Terminal Cable is a key component in ABB Bailey hydraulic control systems. It provides stable, shielded, and precise signal transmission between servo modules and termination units.
Its role is essential for ensuring accurate hydraulic actuator control, system stability, and reliable closed-loop performance in industrial automation environments such as power plants, petrochemical facilities, and heavy machinery systems.