VFD for Compressors: Selection Guide
How to select and size a VFD for screw, reciprocating and centrifugal compressors, covering overload rating, turndown limits and energy savings.
- Part number
- VW3A3423
AltivarSchneider Electric VW3A3423 Altivar Resolver Interface Module VFD Accessory
Resolver interface module connects resolver feedback to Altivar ATV340/900 drives.
Description
About the VW3A3423
About the VW3A3423
The Schneider Electric VW3A3423 is a resolver interface module that connects a resolver feedback device to Altivar Process ATV900, Altivar Process Modular and Altivar Machine ATV340 drives for closed-loop position and speed control. Feedback is wired through a female SUB-D9 connector, with ratio options of 1, 3/4, 1/2 or 3/10 and a maximum operating frequency of 12 kHz.
Selection Notes
Specify the VW3A3423 when the motor's feedback device is a resolver rather than a digital or analog encoder. The module supports four transformation ratios (1, 3/4, 1/2, 3/10) to match whichever resolver is installed on the motor, and its 12 kHz maximum operating frequency is the lowest of the encoder interface modules in this range, reflecting the resolver's lower signal bandwidth versus RS422 or HTL encoders.
Specification
Full specification
Main 4
| Range of Product | Altivar |
|---|---|
| Product or Component Type | Encoder interface module |
| Range Compatibility | Altivar Process ATV900, Altivar Process Modular, Altivar Machine ATV340 |
| Encoder type | Resolver |
Complementary 9
| Maximum supply current | 0.05 A |
|---|---|
| Protection Type | Overload protection, Short-circuit protection |
| Maximum cable distance between devices | 328.08 ft (100 m) |
| Maximum operating frequency | 12 kHz |
| Input signal | Sin+, Sin-, Cos+, Cos-, Temp+, Temp- |
| Output signal | Ref+, Ref- |
| Ratio | 3/10, 1/2, 3/4, 1 |
| Connector type | 1 female SUB-D 9 |
| Net Weight | 0.33 lb(US) (0.15 kg) |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Show all 26 specifications ↓ Show less ↑12 more values in Identification, Logistics.
Identification 7
| Part number | VW3A3423 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606485441276 |
Logistics 5
| Country of origin | ID |
|---|---|
| Shipping weight | 0.15 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for VW3A3423
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Quick answers
Questions about the VW3A3423
What is the HS code of VW3A3423 for customs?
The tariff (HS) code on file for VW3A3423 is 850490.
What is the EAN of VW3A3423?
The EAN (GTIN) of VW3A3423 is 3606485441276.
Where does VW3A3423 ship from, and how fast?
VW3A3423 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Schneider Electric Altivar
- Brand
- Schneider Electric
- Series
- Altivar
