EMERSON VE4050S2K1C0 8‑Wide I/O Interface Carrier English Version
Overview
VE4050S2K1C0 is an 8‑slot horizontal I/O carrier for Emerson DeltaV M‑series distributed control system. VE4050S2K1C0 comes with integrated carrier shield bar, supporting up to eight M‑series I/O cards and corresponding terminal blocks. It handles local bus communication between DeltaV controller and field I/O modules. Mounted on T‑type DIN rail, VE4050S2K1C0 supports online hot‑swap expansion. Integrated power bus reduces external field wiring. One I/O subsystem can support maximum 64 I/O interfaces when combined with power‑controller carrier and extender accessories.

Product Parameters & Physical Specifications
Mechanical Dimension
Height:16.5 cm (6.5 inch)
Width:33.6 cm (13.2 inch)
Depth:3.1 cm (1.2 inch)
Electrical Rating
Backplane max current:8 A for I/O cards
Bussed field power:6.5 A max per two I/O card slots
Capacity:8 I/O cards plus eight terminal blocks
Environmental Rating
Operating temperature:‑40℃ ~ 70℃
Storage temperature:‑40℃ ~ 85℃
Relative humidity:5‑95% non‑condensing
Conformal coating:ISA‑S71.04‑1985 G3
Shock:10 g half‑sine wave,11 ms
Vibration:1 mm peak‑to‑peak 5‑16 Hz;0.5 g 16‑150 Hz
Certifications & Hazardous Area
CE, FM3600, FM3611, CSA, ATEX, IACS E10, ABS, DNV
Installation rating:Class I Division 2 Groups A,B,C,D T4; II3G Ex nA IIC T4 Gc

Core Advantages
- Plug‑and‑play modular architecture, VE4050S2K1C0 connects directly to power‑controller carrier without extra cabling for system power and local bus signal.
- Online expansion capability, add I/O carriers without system shutdown for cabinet retrofitting.
- Built‑in integrated shield ground bar, suppress EMI field noise interference for DCS signal loop.
- T‑type DIN rail mounting for fast cabinet assembly, easy field maintenance for I/O cards.
- Wide‑temperature G3 conformal coating, stable performance in harsh industrial cabinet environment.
- Compatible with carrier extenders to support multi‑row I/O layout for complex cabinet arrangement.
Product Features
VE4050S2K1C0 shares field power between every pair of I/O slots, it does NOT offer per‑slot individual field power supply. Side connector allows cascading extra I/O carriers. It requires VE3051C0 2‑Wide power/controller carrier for 12V local bus power supply. One single controller supports maximum eight I/O carriers, up to 64 I/O cards. Standard M‑series controller cannot distinguish between 4‑wide carrier and VE4050S2K1C0, slot number offset will occur after 4‑wide carrier. PK controller can detect carrier width to avoid slot offset. Physical interconnection with S‑series controller carrier is impossible without DeltaV SIS adapter. Top terminals are provided for bulk 24 VDC field instrument power feed.
Application Scenarios
DCS cabinet I/O hardware for oil & petrochemical plant
Continuous chemical process automation local I/O base
Power plant and water treatment DeltaV M‑series control system
Control room cabinet installation under Class I Div2 hazardous location
DeltaV system modernization and I/O point capacity upgrade
Marine offshore automation cabinet meeting IACS marine certification
Non‑safety I/O subsystem paired with DeltaV SIS (with dual carrier extender)
Comparison with related Emerson carriers
| Model | Carrier Size | Field Power Scheme | Max Backplane Current | Target Use Case |
|---|---|---|---|---|
| VE4050S2K1C0 | 8‑Wide Horizontal | Shared per two slots | 8A | General‑purpose I/O cabinet, cost‑optimized group field power |
| VE4050S2K1C2 | 8‑Wide Horizontal | Individual per slot | 8A | Redundant I/O cards requiring separate field power circuit |
| VE4040E0C0 | 4‑Wide Horizontal | Individual per slot | 8A | Space‑restricted cabinet with small I/O quantity |
VE4050S2K1C0 delivers higher aggregated field power for paired slots, comparing with per‑card power carrier. It holds more I/O cards than 4‑wide variant. Not suitable if redundant I/O cards need electrically separated field power feed.
Compatible Part Numbers
VE3051C0 power‑controller carrier VE5109 DC‑DC system power supply VE5056 2‑Wide power injection carrier VE6101 carrier blank cap VE4050E1C0 / VE4050E2C0 carrier extender cable 0.8m,1.2m,1.5m black & white SISNet coax extender cables M‑series analog / discrete I/O cards and corresponding terminal blocks
Sourcing & Selection Guide
Check controller hardware revision: standard M‑series controller generates slot offset after 4‑wide carrier; PK controller avoids this offset. If redundant I/O cards require separate field power circuit, select VE4050S2K1C2 instead of VE4050S2K1C0. Complete power budget calculation, ensure total I/O load within power supply output limit. Confirm cabinet DIN rail type must be T‑form DIN rail. Order carrier extender cables for multi‑row or cross‑cabinet I/O arrangement. Verify hazardous area certificate matches site classification for explosive environment installation.
Pitfall Reminder & After‑sales
Pitfall: VE4050S2K1C0 cannot directly mate S‑series carrier without SIS adapter, forced assembly causes hardware damage. Slot number jump happens when cascading 4‑wide carrier before VE4050S2K1C0, cross‑check slot index in control configuration. Continuous full‑load running near 70℃ ambient shortens hardware service life. Always route field shielding to carrier built‑in ground bar instead of random cabinet ground points. After‑sales note: VE4050S2K1C0 is passive backplane. Most communication faults come from power unit, extender cable or I/O module failure. Do NOT hot‑swap the carrier base itself; hot‑swap operation is limited to I/O cards only. Power‑off before removing or installing VE4050S2K1C0.
FAQ 8 Questions
Q: Does VE4050S2K1C0 support separate individual field power for redundant I/O cards?
A: VE4050S2K1C0 uses shared field power for two adjacent slots, per‑card independent field power is unavailable. Select VE4050S2K1C2 for redundant I/O cards requiring separate field power circuit.
Q: Can VE4050S2K1C0 connect to S‑series controller carrier directly?
A: Physical compatibility is not available without DeltaV SIS adapter. Hardware assembly and local bus communication will fail.
Q: How many VE4050S2K1C0 carriers can one single controller support?
A: Controller maximum capacity is eight I/O carriers. All eight can be VE4050S2K1C0 for up to 64 I/O cards, subject to power budget validation.
Q: What slot‑number behavior occurs when 4‑wide carrier is placed before VE4050S2K1C0 under standard M‑series controller?
A: Slot offset appears. The 4‑wide carrier occupies slot1‑4, then VE4050S2K1C0 starts from slot 9. PK controller will not produce such offset.
Q: Do I need to buy separate grounding accessories for VE4050S2K1C0?
A: Integrated shield ground bar is included within VE4050S2K1C0 unit. No extra grounding hardware purchase required, connect ground bar to cabinet protective earth properly.
Q: Is hot‑swap allowed for VE4050S2K1C0 carrier itself?
A: Hot‑swap for carrier base is forbidden. Only I/O cards support hot‑swap. Power must be cut off before removing or installing VE4050S2K1C0 carrier.
Q: Are I/O cards and terminal blocks included when ordering VE4050S2K1C0?
A: VE4050S2K1C0 is I/O carrier base only. I/O cards, terminal blocks and power supply modules need separate ordering.
Q: Can VE4050S2K1C0 host DeltaV SIS safety logic solver modules?
A: VE4050S2K1C0 cannot mount safety logic solver directly. With dual carrier extender cables, it can serve as non‑safety auxiliary I/O carrier for DeltaV SIS system. VerticalPLUS carrier series is required for safety logic solver hardware.
Recommended Emerson Series Part List
VE4050E1C0,VE4050E1C2,VE4050E2C0,VE4050E2C2,VE4040E0C0,VE4050S2K1C2,VE4050K1C0,VE3051C0,VE3051C2,VE3051C3,VE6101,VE5056,VE5109,VE4050K1C2,VE4050K2C0
Important Notes
- Perform system power budget calculation. Total I/O load shall not exceed rated output of system power supply.
- Maintain cabinet ventilation under high ambient temperature to slow hardware aging.
- Both A and B extender connectors are parallel for general setup. Deploy dual‑cable configuration for DeltaV SIS fault‑tolerant requirement.
- Follow installation document 12P1293 and 12P2046 for hazardous area deployment.
- Keep storage environment dry, avoid condensation damaging conformal coating.
Product Tags
VE4050S2K1C0,Emerson DeltaV M‑series,I/O Interface Carrier,8‑Wide horizontal carrier,DCS I/O base plate,DeltaV rack base,M‑series I/O carrier,DeltaV DCS hardware









