Introduction
The Yokogawa KS1-20 Signal Cable is a high-reliability industrial communication cable designed for Yokogawa CENTUM CS / CENTUM VP DCS systems. It is used to connect I/O modules with terminal boards or marshalling panels, ensuring stable, low-noise signal transmission in complex process automation environments.
Engineered for mission-critical industrial control systems, the KS1 series cable provides secure multi-pin interconnection, helping maintain signal integrity between field instrumentation and control system racks in industries where downtime is not acceptable.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Yokogawa |
| Model Number | KS1-20 |
| Product Type | Signal Cable (40-pin to 40-pin) |
| System Compatibility | CENTUM VP / CENTUM CS / ProSafe-RS |
| Connector Type | 40-pin multi-core industrial connector |
| Cable Length | 20 m |
| Signal Type | Analog / digital signal transmission |
| Shielding | Multi-layer shielded design for EMI protection |
| Conductor Material | High-purity copper |
| Insulation | Industrial-grade PVC or equivalent |
| Rated Voltage | Up to 30 V AC/DC (signal-level use) |
| Rated Current | ~1 A per pin (typical design class) |
| Operating Temperature | -20°C to +70°C |
| Installation Type | Cabinet-to-cabinet / rack-to-terminal connection |
| Application Environment | Industrial control cabinets / DCS systems |
| Weight | ~1.0–2.0 kg (depending on configuration) |
Applications
The Yokogawa KS1-20 Signal Cable is widely used in large-scale industrial automation systems:
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Yokogawa CENTUM VP / CS distributed control systems
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ProSafe-RS safety instrumented systems (SIS)
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Connection between I/O modules and terminal boards
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Control cabinet and marshalling panel wiring
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Power plant automation systems
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Petrochemical and refinery control systems
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Oil & gas process monitoring networks
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Water treatment and utility automation systems
Technical FAQs
Q1: What is the main function of the KS1-20 cable?
A: It connects I/O modules and terminal boards in Yokogawa control systems.
Q2: What systems is it compatible with?
A: It is used in CENTUM VP, CENTUM CS, and ProSafe-RS systems.
Q3: What type of connector does it use?
A: It typically uses a 40-pin to 40-pin industrial connector configuration.
Q4: What is the cable length?
A: The KS1-20 variant is 20 meters long.
Q5: Is the cable shielded?
A: Yes, it includes shielding to reduce electromagnetic interference.
Q6: What environments is it designed for?
A: Industrial automation environments such as refineries, power plants, and chemical facilities.
Q7: Can it be used in safety systems?
A: Yes, it is commonly used in ProSafe-RS safety instrumented systems.
Q8: What happens if the cable is damaged?
A: Signal loss or communication errors between I/O modules may occur.
Q9: Is it field repairable?
A: No, it is typically replaced as a complete assembly.
Q10: Why is it important in DCS systems?
A: It ensures reliable signal transmission between control modules and field interfaces.
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