EMERSON VE4005S2B1 Standard I/O Termination Block
Overview
VE4005S2B1 is the Standard I/O Termination Block for Emerson DeltaV M‑series Traditional I/O subsystem. This termination block serves as field wiring interface for 8‑channel 4‑20 mA HART analog output AO cards, establishing physical connection between HART field actuators and DeltaV I/O interface carrier. VE4005S2B1 adopts mechanical key‑locking design for anti‑mis‑insertion. It supports hot‑swap maintenance without removing field cables. Widely deployed in process DCS system for control valves and HART positioners. VE4005S2B1 applies for simplex non‑redundant setup. For 1:1 redundant I/O architecture, VE4035S2B1 redundant termination block shall be selected instead of VE4005S2B1.
Product Parameters & Physical Specifications
Model: VE4005S2B1
Product Type: Standard I/O Termination Block
Supported Channels: 8‑channel for 4‑20 mA HART analog output signal
Card Key Position: A4
Mounting: M‑series Horizontal / VerticalPlus I/O interface carrier, DIN rail mount
Operating Temperature: -40℃ ~ +70℃
Storage Temperature: -40℃ ~ +85℃
Relative Humidity: 5‑95%, non‑condensing
Ingress Protection: IP20
Airborne Contaminants: ISA‑S71.04‑1985 Class G3
Shock: 10 g half‑sine, 11 ms duration
Vibration: 1 mm peak‑to‑peak (5‑16 Hz), 0.5 g (16‑150 Hz)
Dimensions: H 10.7 cm × W 4.1 cm × D 10.5 cm
Field Connection: Screw clamp terminals
Minimum DeltaV Software Version: v10.3.1 or later release
Core Advantages
Mechanical key‑lock mechanism of VE4005S2B1 prevents wrong I/O card insertion physically, reducing human‑induced faults during commissioning and maintenance.
Hot‑swap friendly design. Field wiring stays fixed on VE4005S2B1 while AO card can be replaced directly, no cable disassembly required. It minimizes process system downtime.
Integrated 24 VDC bussed field power circuit inside termination block, reducing external intermediate terminals inside control cabinet.
Full HART signal pass‑through without signal attenuation, supporting AMS Device Manager for HART actuator configuration and diagnostics.
Robust environmental performance, G3 coating standard for corrosive cabinet environment in petrochemical and oil‑gas plant.
Product Features
Screw‑clamp terminals accept solid and stranded industrial control cables, anti‑vibration for cabinet installation.
Optional 2 A fuse solution, upgrade to fused termination block VE4005S2B2 when channel overcurrent protection is required.
VE4005S2B1 only works for simplex configuration. Redundant I/O card pair will not be recognized by DeltaV system on VE4005S2B1.
Field instrument wiring can be finished prior to inserting AO I/O card, enabling phased site installation.
This termination block is passive hardware without electronic circuit; channel galvanic isolation is implemented on AO I/O card.
Compatible exclusively with M‑series I/O carrier, cannot be mounted on S‑series carrier hardware.
Application Scenarios
Petrochemical DCS system, wiring for control valve and HART valve positioner 4‑20 mA output loop.
Chemical plant automation, analog output signal interface for reactor and distillation unit actuators.
Oil & gas gathering station, field‑mounted Traditional I/O cabinet solution.
Pharmaceutical and water treatment DeltaV M‑series DCS control cabinet.
Power plant BMS auxiliary control system for smart HART actuator analog output circuits.
Brand Product Comparison
VE4005S2B1, Standard I/O Termination Block, simplex only, no built‑in fuse, for general non‑redundant 8‑ch AO‑HART control loop, baseline project selection.
VE4035S2B1, Redundant Standard I/O Termination Block, supports 1:1 dual card redundancy, no built‑in fuse, for critical control loop with automatic I/O card switch‑over.
VE4005S2B2, Fused I/O Termination Block, simplex only, equipped with optional 2A fuse, for channel‑level short‑circuit protection for field wiring.
VE4005S2B3, 16‑Pin Mass Termination Block, simplex only, no built‑in fuse, for bulk wiring with third‑party interface or intrinsic safety barrier cabinet.
Compatible Part Numbers
Matching I/O card: M‑series Traditional I/O 8‑channel AO 4‑20 mA HART card. I/O carrier hardware: M‑series 4‑wide /8‑wide I/O interface carrier. Redundant replacement base: VE4035S2B1. Fused termination base: VE4005S2B2. Mass termination block: VE4005S2B3. Spare fuse: KJ4010X1‑BC1 (250V,2A, box of 20). Module hold‑down screw: KJ4010X1‑BP2. Controller hardware: MQ, MX, PK DeltaV controller family.
Procurement & Selection Guide
Matching I/O card: M‑series Traditional I/O 8‑channel AO 4‑20 mA HART card.
I/O carrier hardware: M‑series 4‑wide /8‑wide I/O interface carrier.
Redundant replacement base: VE4035S2B1.
Fused termination base: VE4005S2B2.
Mass termination block: VE4005S2B3.
Spare fuse: KJ4010X1‑BC1 (250V,2A, box of 20).
Module hold‑down screw: KJ4010X1‑BP2.
Controller hardware: MQ, MX, PK DeltaV controller family.
Common Pitfalls & After‑sales Notes
Pitfalls
1. VE4005S2B1 is passive wiring base, AO I/O card must be ordered separately. Many purchase orders miss I/O card quantity.
2. M‑series and S‑series carrier are not interchangeable, physical assembly will fail if mixed.
3. VE4005S2B1 cannot enable I/O redundancy, even two AO cards are plugged into this simplex termination block.
4. Set mechanical key position to A4 correctly, otherwise I/O card cannot seat completely.
5. HART communication failure seldom comes from VE4005S2B1 termination block. Troubleshooting shall start with cable shield grounding, field instrument and AO hardware.
After‑sales
1. VE4005S2B1 contains no electronic components. Most failures are caused by loose terminal screw connection.
2. Replace whole termination block when terminal screw thread is damaged. Do not attempt local repair.
3. If card insertion is stiff, inspect key‑post position. Never force push I/O module.
FAQ
Q：Does VE4005S2B1 include AO analog output I/O card?
A： VE4005S2B1 is purely wiring termination base. AO I/O card must be ordered separately to build a complete I/O interface unit.
Q：Can VE4005S2B1 support 1:1 redundant I/O card pair?
A： No. Redundant termination base VE4035S2B1 is required for redundant setup. VE4005S2B1 runs in simplex mode only.
Q：Can VE4005S2B1 be installed into S‑series DeltaV carrier rack?
A： No. VE4005S2B1 belongs to M‑series Traditional I/O family, mechanical dimension mismatch for S‑series carrier.
Q：Can VE4005S2B1 work under DeltaV v9.3 software revision?
A： Not supported. Minimum software requirement for VE4005S2B1 is v10.3.1. Use KJ3221X1‑BA2 for older software release.
Q：Is channel fuse pre‑installed inside VE4005S2B1?
A： VE4005S2B1 has no built‑in fuse. Order VE4005S2B2 when channel fuse protection is needed.
Q：Can VE4005S2B1 accept RTD or thermocouple I/O card?
A： Not allowed. Key setting A4 only matches 8‑channel AO‑HART card. Physical key lock blocks insertion of other card types.
Q：Will hot‑swap AO card break field output signal with field cables kept on VE4005S2B1?
A： Field cables remain connected on termination block. But for simplex VE4005S2B1 setup, analog output will drop when active AO card is pulled out.
Q：HART communication is unstable, is VE4005S2B1 termination block defective?
A： VE4005S2B1 is passive hardware and rarely causes HART failure. Check cable shield grounding, field instrument and AO card hardware first.
Recommended Emerson Series Part Numbers
VE4005S2B1,Standard I/O Termination Block
VE4035S2B1,Redundant Standard I/O Termination Block
VE4005S2B2,Fused I/O Termination Block
VE4005S2B3,16‑Pin Mass Termination Block
VE4003S2B1,8‑Channel AI Standard I/O Termination Block
VE4001S2T2B1,8‑Channel DI Dry Contact Standard Termination Block
VE4002S1T2B1,8‑Channel DO High‑Side Standard Termination Block
VE4003S5B1,CJC Cold Junction Compensated Termination Block
VE4003S6B1,RTD Resistance Temperature Device Termination Block
VE4005S2B4,16‑Channel AO Plus Terminal Block
VE4035S2B4,Redundant 16‑Channel AO Plus Terminal Block
KJ4010X1‑BC1,250V 2A Fuse for Fused Terminal Block
Important Notes
Confirm I/O carrier is M‑series Horizontal / VerticalPlus hardware before VE4005S2B1 installation.
Adjust mechanical key‑post setting to position A4. Wrong key setting will prevent full seating of I/O card.
Observe torque value from DeltaV hardware installation manual for terminal screws. Over‑torque will damage termination housing.
Control cabinet ambient condition must maintain 5‑95% relative humidity non‑condensing to avoid terminal corrosion.
For hazardous area installation, strictly follow DeltaV M‑series Zone2 installation instruction documents.
Product Tags (comma‑separated)
VE4005S2B1,Standard I/O Termination Block,DeltaV M‑series Traditional I/O,Emerson termination block,8‑channel AO HART terminal block,DeltaV DCS I/O base,M‑series I/O wiring base,HART instrument wiring termination block,simplex AO termination base,DeltaV analog output wiring unit
