Description
Product Overview
VBS01-FPN is an official termination mounting base developed by ABB for the Symphony Plus distributed control system SD I/O subsystem. As the physical connection carrier between field site instruments and system I/O modules, this horizontal installation base provides standardized signal wiring and field power distribution services for single-channel analog input, digital input/output and pulse acquisition modules. With neutral loop power control design and built-in surge suppression circuit, it effectively filters common-mode interference generated by field equipment. The product has passed strict environmental and mechanical reliability tests, being a necessary spare part for DCS cabinet overhaul, system transformation and daily maintenance in global thermal power, petrochemical and process automation fields.
Complete Technical Specification Table
| Parameter Category | Detailed Technical Index |
|---|---|
| Official Part Number | VBS01-FPN |
| Product Type | Singular I/O module mounting & field termination base |
| Supported I/O Card Types | Analog input, digital input/output, pulse input modules of SD series |
| Signal Terminals | Dual 16-position detachable terminal connectors |
| Permitted Channel Load Current | Maximum 250mA per individual signal channel |
| Allowable Field Cable Specification | 22 AWG to 14 AWG solid/stranded conductors |
| Isolation Dielectric Strength | 1500 VAC isolation voltage for 60 seconds |
| Operating Ambient Range | -40°C ~ 70°C continuous operating temperature |
| Storage Environmental Index | -40°C ~ 85°C storage temperature range |
| Humidity Working Condition | 20% ~ 95% relative humidity, non-condensing |
| Mechanical Mounting Standard | 35mm standard DIN rail horizontal installation |
| Backplane Compatibility | Seamless docking with HN800 redundant I/O bus system |
| Electromagnetic Compliance | IEC 61000-6-2 EMC standard, Level 3 surge & ESD immunity |
Main Product Features
- Independent neutral power switching architecture effectively isolates field power interference and improves the stability of I/O signal collection.
- Removable terminal plug design allows hot wiring without dismantling the base body, convenient for field maintenance and circuit troubleshooting.
- High-strength engineering plastic housing with ESD and surge protection meets industrial EMC grade 3 anti-interference requirements.
- Unified physical size and bus definition are fully compatible with all standard SD series I/O modules for one-to-one direct replacement.
- Strict factory aging screening ensures long-term stable operation under harsh industrial working conditions such as high temperature and dampness.
Matched Equipment & Typical Application Scenarios
Matching accessories: ABB SD series I/O modules, HN800 backplane, system power supply unit, field signal cablesApplicable industries: Thermal power generation units, oil & gas pipeline stations, chemical processing plants, fertilizer production lines
Supply & Delivery Instructions
We supply brand-new original bases and fully inspected refurbished units. Each product passes 48-hour powered aging test, terminal conduction test and bus communication matching verification before delivery. Goods are packed with ESD anti-static vacuum bag, customized shockproof foam and thickened export cartons to prevent structural deformation and pin damage during cross-border transportation. A 12-month warranty covers inherent hardware defects under rated operating conditions.
FAQ
- Will replacing VBS01-FPN affect the original DCS signal acquisition?All logic configuration is stored in the upper Symphony Plus controller. After replacing the mounting base, only simple signal channel testing is required, no modification to system programs is needed.
- Meaning of FPN suffixFPN = Field Power Neutral, representing field power supply with neutral line switching mode for field sensor power distribution.
- Delivery lead time for stocked goodsProducts are stored in domestic warehouse, all shipment documents and delivery procedures can be completed within 3 working days after payment confirmation.
- WhatsApp: +86 13313703791
- Email: seren@ymgkplc.com
- Phone: +86 13313703791
- Wechat: +86 13313703791
- Website: www.xiongbaparts.com


+86 13313703791
+86 13313703791
seren@ymgkplc.com

