EMERSON VE4026 – DeltaV S-series I/O/Interface Module for reliable plant control

The Emerson VE4026 sits in the DeltaV S‑series hardware family and is widely used as a plug‑in I/O/interface module in distributed control system cabinets. From my experience, it’s chosen as a straight replacement part or as an expansion piece when a plant is standardizing on DeltaV hardware and wants minimal risk during a turnaround. You might notice that some sites refer to suffixes (for example, VE4026S1K1) – those typically denote specific options or revisions, so we’ll help you match the exact variant to your cabinet and DeltaV software version.

Order Placement Process and Guarantees

Key Features

• DeltaV S‑series compatibility – Designed to plug into S‑series carriers/backplanes so cabinet layouts stay unchanged.
• Fast swap and commissioning – Typically hot‑swappable on powered carriers, reducing downtime during maintenance windows.
• Native diagnostics – Module health/status LEDs and DeltaV/AMS diagnostic visibility for quicker troubleshooting.
• Industrial build – Built for control cabinets in utility, chemicals, oil & gas, and pharma environments.
• Lifecycle flexibility – Often used as a drop‑in replacement to extend system life without re‑engineering wiring.

One thing I appreciate is how consistent the mechanical envelope is across S‑series modules; in many cases you can swap, validate on DeltaV Diagnostics, and be back to normal in minutes. A utilities customer told us a VE‑series swap took about 15 minutes including a quick loop check.

Technical Specifications

Note: Exact functional variant of VE4026 can differ by suffix. The entries below reflect typical S‑series module characteristics. We’ll confirm the exact option code before shipment.

Related or Supporting Products

• VE4025 – S‑series module in the same VE4xxx family; chosen depending on I/O type and channel count.
• VE4024 – Alternative S‑series module used in similar cabinets; function differs by suffix and option code.
• S‑series carriers/backplanes – Required mounting hardware for VE‑series modules; confirm your slot and carrier type.
• DeltaV system power supplies and controllers – Ensure firmware alignment so diagnostics and module identity register correctly.

If you’re replacing a failed unit, share the full part number string on the module label. It appears that different site inventories carry slightly different revisions, and matching the suffix usually avoids nuisance configuration prompts.

Installation & Maintenance

• Cabinet environment – Keep within DeltaV cabinet standards: clean, dry air; ambient typically 0–55°C; allow airflow around modules.
• Mounting – De‑energize field loops as required; insert the module straight into the S‑series carrier until fully seated; secure per site practice.
• Wiring – Field wiring stays on terminal blocks/landing points; the module engages the backplane only. Verify shield and grounding practices.
• ESD handling – Handle using an ESD strap and keep the protective bag until installation.
• Commissioning – After seating, check DeltaV Diagnostics; if the revision differs, follow your site’s firmware/charms mapping process.
• Routine care – Quarterly visual inspection for dust; gentle dry‑air cleaning. Keep firmware aligned with your DeltaV version when applicable.

Quality & Certifications

• Typically complies with CE and UL/CSA requirements for industrial control equipment.
• RoHS alignment in most regions; exact marking depends on the specific suffix/revision.
• Manufacturer policies apply for factory units; our warranty coverage is 365 days from delivery.

If you can share the VE4026 label photo or the full option code, we’ll cross‑check compatibility against your controller revision and ship the matching unit. That small step typically saves a site visit.