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Schneider Electric VW3A3E304 — Motor Control Accessories

Schneider Electric VW3A3E304 Interbus Communication Card, 9-

MPNVW3A3E304
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Schneider Electric VW3A3E304 Interbus communication card, Altivar series, 9-way male and female SUB-D connectors, LED status indicators.

Schneider Electric VW3A3E304 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

VW3A3E304 — Identification
ParameterValue
Product / component typeCommunication card

Cable & Connector

VW3A3E304 — Cable & Connector
ParameterValue
Connector type9-way female SUB-D connector 9-way male SUB-D connector

Other specifications

VW3A3E304 — Other specifications
ParameterValue
SupplyBy drive but necessary to use an external supply if the inverter is not powered
Display type1 LED for BA (periodic data) 1 LED for RC (bus input) 1 LED for Rd (bus output) 1 LED for TR (messaging) 1 LED for U (power supply) Graphic display terminal for control word received Graphic display terminal for reference received
Communication serviceCommunication monitoring I/O data Abort communication relationship Communication and drive status Identification of the card Initialize communication relationship Profile 21 Read object description Read parameter Write parameter
Communication port protocolInterbus

Product details

The Schneider Electric VW3A3E304 is an Interbus communication card for Altivar drives, providing a fieldbus interface via dual 9-way SUB-D connectors — one male, one female — for daisy-chain wiring on the Interbus network.

Power supply note

The card draws power from the drive when the inverter is powered. If the drive is off, an external 24 V supply is needed to keep the bus interface alive — this matters during commissioning or when the drive is isolated but the network must stay up.

Status indicators

Five LEDs on the card face give at-a-glance status: BA for periodic data traffic, RC for bus input, Rd for bus output, TR for messaging, and U for power supply. A graphic display terminal also shows control word and reference word received — useful for fault isolation without a laptop.

Frequently asked questions

Where can I buy VW3A3E304 and how do I get a price?

The VW3A3E304 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is VW3A3E304's listed supply requirement?

The card is powered by the drive when the inverter is on; if the inverter is not powered, an external supply must be used.

What status indicators does the VW3A3E304 have?

Five LEDs indicate BA (periodic data), RC (bus input), Rd (bus output), TR (messaging), and U (power supply). A graphic display terminal also shows control word and reference word received.

MPN
VW3A3E304