Product Description
This comprehensive collection features high-quality, direct-fit spare parts for Yokogawa DCS architectures, engineered to match original OEM part numbers and performance specifications. Covering core control components (CSL/CP33XD CPU Card, CSL/PW301 Power Supply), communication infrastructure (V-NET/ER BUS/ESB BUS cables, bus couplers, terminators), I/O interface modules (analog input cards, terminal boards), and connectivity accessories, these parts support dual-redundant fieldbus setups, real-time control bus communication, and stable power distribution for Field Control Stations (FCS). Manufactured with industrial-grade PCB substrates, flame-retardant cabling, and corrosion-resistant connectors, each component undergoes rigorous signal integrity testing to ensure zero data loss and consistent performance in harsh industrial environments.
Functional Specifications
- Power & Control Modules: CSL/PW301 Power Supply delivers stable 100-120 VAC input to FCS units with 99.5% voltage regulation, preventing system crashes from power fluctuations; CSL/CP33XD CPU Card executes real-time process control logic with sub-50ms scan cycles for precise industrial process monitoring.
- Communication Bus Components: V-NET and ER BUS cables (10 BASE 2/10 BASE 5) support 10 Mbps high-speed data transmission with dual-redundant design, ensuring failover communication; ESB BUS couplers and repeaters extend signal range up to 4KM with optical isolation, eliminating electromagnetic interference (EMI) in industrial settings.
- I/O & Interface Parts: Analog input modules and terminal boards provide accurate signal conversion (4-20mA, RS422/RS485) with 16-bit resolution; dual-redundant node units ensure uninterrupted I/O connectivity, critical for safety instrumented systems (SIS) and ProSafe PLS/ESD setups.
- Connectivity Accessories: Shielded I/O cables and industrial connectors maintain signal integrity over long distances, with IP20-rated construction to resist dust and moisture in control cabinet environments.
Structural Characteristics
All Yokogawa DCS spare parts feature a compact, rack-mountable design compatible with standard 19-inch control cabinets, aligning with CENTUM CS 1000/3000 and CENTUM VP hardware form factors. Control modules utilize multi-layer PCB construction with isolated signal paths to reduce cross-talk; communication cables employ double-shielded copper conductors with UV-resistant jacketing; terminal boards feature labeled pinouts and plug-and-play connectors for simplified installation. Key components like CPU and power supply modules support hot-swappable replacement, allowing repairs without shutting down the entire DCS—minimizing process disruption. Redundant-design parts (dual-redundant node units, bus adapters) feature symmetrical circuitry for seamless failover, meeting SIL 2-capable reliability requirements for critical process control.
Applicable Operating Conditions
These Yokogawa DCS spare parts are engineered to perform in demanding industrial environments, including:
- 24/7 continuous-process plants (oil refineries, petrochemical facilities, thermal power plants)
- Control cabinets with operating temperatures of 0-55°C and 10-90% non-condensing humidity
- Industrial settings with high EMI from motors, transformers, and high-voltage equipment
- Legacy CENTUM CS 1000/3000 systems and modern CENTUM VP DCS architectures
- Safety-critical applications integrating ProSafe PLS & ESD safety systems
Maintenance & Servicing Recommendations
- Preventive Inspection Schedule: Inspect power supplies, CPU cards, and bus cables quarterly for loose connections, physical damage, or overheating; test communication bus signal strength every 6 months to identify degradation early.
- Component Replacement Protocol: Replace aging bus cables every 5 years and field-replaceable units (power supplies, fans) every 8 years to prevent unexpected failures; use only matched OEM-equivalent parts to maintain system compatibility.
- Installation Best Practices: Ensure proper grounding for V-NET cables and control modules to reduce EMI; secure cable connections with locking fasteners to prevent vibration-induced disconnection in industrial facilities.
- System Testing Post-Replacement: Conduct a full system boot and communication test after part installation; verify I/O signal accuracy and bus connectivity to confirm proper operation before resuming full process control.
- Inventory Management: Stock critical spare parts (power supplies, CPU cards, bus terminators) on-site to reduce downtime from emergency replacements, aligning with plant reliability-centered maintenance (RCM) protocols.
We supply the following spare parts:
| Part # | Description |
| CSL/PW301 | “YOKOGAWA” DISTRIBUTION CONTROL SYSTEM(D.C.S) . TYPES CENTUM CS 1000 & 3000 . POWER SUPPLY FOR FCS, 100-120 VAC P/N: CSL/PW301 |
| AEF9D-00 | TERMINAL BOARD DUAL-REDUNDANT FIELDBUS P/N: AEF9D-00 |
| YCB141-M005 | V-NET CABLE P/N: YCB141-M005 |
| YCB141-M025 | ER BUS CABLE(10 BASE 2 CABLE) 25 M P/N: YCB141-M025 |
| YCB141-M030 | ER BUS CABLE(10 BASE 2 CABLE) 30 M P/N: YCB141-M030Yokogawa YCB141-M030 |Vnet Cable (10BASE-2) |
| AKB336-M010 | SINGLE CABLE P/N: AKB336-M010 |
| YCB117 | V-NET GROUNDING P/N: YCB117 |
| YCB148 | V NET TERMINATOR(10 BASE 2 CABLE) P/N: YCB148 |
| YCB301-C200 | EBS BUS CABLE 2 MT. P/N: YCB301-C200 |
| YUC50 10 M | I/O MODULE CABLE P/N: YUC50 10 M |
| AKB336-M002 | SIGNAL CABLE (20PIN) P/N: AKB336-M002 |
| KS1-05*A | SIGNAL CABLE (40PIN) P/N: KS1-05*A |
| KS1-15*B | SIGNAL CABLE (40PIN) P/N: KS1-15*B |
| YCB111-M025 | V NET CABLE (10 BASE 5)25 M P/N: YCB111-M025 |
| YCB141-M035 | ER BUS CABLE(10 BASE 2 CABLE)35M P/N: YCB141-M035 |
| EC401-50 | ESB BUS COUPLER MODULE P/N: EC401-50 |
| AIP830-101 | OPERATING KEYBOARD P/N: AIP830-101 |
| YUC50 15 M | I/O MODULE CABLE P/N: YUC50 15 M |
| YUC40 10 M | /O MODULE CABLE P/N: YUC40 10 M |
| YUC40 15 M | I/O MODULE CABLE P/N: YUC40 15 M |
| CSL/CP33XD | CPU CARD P/N: CSL/CP33XD |
| CSL/FB301 | FIO BUS CARD P/N: CSL/FB301 |
| MB-DO32-119946 | TERMINAL BOARD P/N: MB-DO32-119946 |
| ZZ-BM-PF-FS01 | FUSE P/N: ZZ-BM-PF-FS01 |
| YCB301-C020 | ESB BUS CABLE, 0.2 MT FSNÙ P/N: YCB301-C020 |
| YCB147-4/BR | CONTROL BUS ADAPTER P/N: YCB147-4/BR |
| YCB147-4/BR | CONTROL BUS ADAPTER P/N: YCB147-4/BR |
| YCB147-4/BR | CONTROL BUS ADAPTER P/N: YCB147-4/BR |
| KS1-20*A | SIGNAL CABLE(20M) P/N: KS1-20*A |
| MM50-M6 | CONNECTOR WITH CABLE 6 M. “WEIDMULLER” P/N: MM50-M6 |
| MM50-M5 | CONNECTOR WITH CABLE 5 M. “WEIDMULLER” P/N: MM50-M5 |
| 37EP234017/0 | DIGITAL OUTPUT CARD “WEIDMULLER” P/N: 37EP234017/0 |
| 37EP232026/0 | DIGITAL INPUTS CARD “WEIDMULLER” P/N: 37EP232026/0 |
| AKB161 | “YOKOGAWA” DISTRIBUTION CONTROL SYSTEM(D.C.S) . TYPES CENTUM CS 1000/3000 . COMMUNICATION CABLE, RS422/RS485 P/N: AKB161 |
| ANB11D-615/BU2A | NODE UNIT FOR DUAL-REDUNDANT P/N: ANB11D-615/BU2A |
| ANT421-50CU1N | OPTICAL ESB BUS REPEATER MASTER MODULE 4 KM P/N: ANT421-50CU1N |
| ANT522-50BU1A | OPTICAL ESB BUS REPEATER SLAVE MODULE 4 KM P/N: ANT522-50BU1A |
| ANB10D-440CU2T | NODE UNIT FOR DUAL-REDUNDANT ESB BUS P/N: ANB10D-440CU2T |
| VF702 | CONTROL BUS INTERFACE CARD P/N: VF702-S1 |
| SAI143-H53-S3 | ANALOG INPUT MODULE P/N: SAI143-H53-S3 |
| ANB10D-415/CU2N | NODE UNIT P/N: ANB10D-415/CU2N |
| ANB10D-415/CU2T | NODE UNIT P/N: ANB10D-415/CU2T |
| FLKMS-2KS50/32IM/YCS | “YOKOGAWA” DISTRIBUTION CONTROL SYSTEM(D.C.S) TYPE CENTUM VP . TERMINATION BOARD P/N: FLKMS-2KS50/32IM/YCS |
| CO-960-01 | “YOKOGAWA” PROSAFE PLS & ESD SYSTEM AM-860257 & PA/89039& AMP-1067(AM- 890183) MULCOM COMPUTER P/N: CO-960-01 |
| AEA4D-05 | TERMINAL BOARD STYLE:S1 SUFFIX:05 P/N: AEA4D-05 |
Field DCS Fault Repair Cases
Case 1: CENTUM CS 3000 FCS Power Supply Failure
A petrochemical refinery experienced a sudden FCS shutdown on their CENTUM CS 3000 DCS due to a faulty CSL/PW301 power supply, halting critical distillation column control. Technicians replaced the defective unit with a new CSL/PW301 power supply, restoring stable 100-120 VAC power to the control station. The system rebooted successfully within 30 minutes, avoiding a full plant shutdown and millions in lost production.
Case 2: V-NET Communication Bus Breakdown
A power generation plant reported lost communication between operator stations and FCS units, caused by a damaged YCB141-M030 V-NET cable. The degraded cable caused intermittent data transmission errors and system alarms. Replacing the faulty 30M ER BUS cable with a new YCB141-M030 unit restored 10 Mbps bus communication, eliminating alarms and resuming full process monitoring capabilities.
Case 3: CENTUM VP I/O Terminal Board Malfunction
A water treatment facility faced erratic analog input readings on their CENTUM VP DCS, linked to a faulty FLKMS-2KS50/32IM/YCS termination board. The defective board caused inaccurate sensor data, risking process non-compliance. Installing a replacement terminal board resolved signal interference, restoring stable 4-20mA I/O signal transmission and ensuring regulatory compliance.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with both legacy CENTUM CS 1000/3000 and modern CENTUM VP systems? | Yes, these spare parts are precision-designed to be cross-compatible with Yokogawa CENTUM CS 1000, CS 3000, and CENTUM VP DCS platforms, matching OEM form factors, pinouts, and communication protocols for seamless integration. |
| Can communication bus cables (V-NET/ER BUS/ESB BUS) be cut to custom lengths on-site? | No, these Yokogawa DCS bus cables are pre-terminated with factory-calibrated connectors to maintain signal integrity. Custom cutting will disrupt impedance matching and cause data transmission errors; always use the specified pre-sized cables. |
| Do CPU and power supply modules support hot-swapping without system shutdown? | Yes, dual-redundant CPU cards (CSL/CP33XD) and power supplies (CSL/PW301) feature hot-swappable design, allowing replacement while the DCS runs in redundant mode, eliminating process downtime during maintenance. |
Procurement Guidance & Closing Statement
For industrial plant teams responsible for maintaining Yokogawa CENTUM CS 1000, CS 3000, and CENTUM VP DCS reliability, this spare parts catalog provides a compliant, quality-assured sourcing solution for all critical control, communication, and I/O components. Backed by strict quality testing and alignment with Yokogawa’s industrial control standards, these parts serve as both a trusted procurement reference and a technical guide for resolving DCS faults quickly and effectively. Whether stocking for scheduled preventive maintenance, addressing emergency breakdowns, or replacing obsolete legacy components, these spare parts ensure your Yokogawa DCS operates at peak reliability, minimizing costly downtime and preserving process safety and efficiency. Secure the exact Yokogawa DCS spare parts your system requires, tailored to your CENTUM series model and operational needs, to maintain uninterrupted industrial process control for years to come.
