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.
The Schneider Electric VW3A3422 is an analog encoder interface module that connects a SinCos Hiperface or 1 Vpp encoder to Altivar Machine ATV340, Altivar Process ATV900 and Altivar Process Modular drives. It supplies 5 V, 12 V or 24 V DC to the encoder and reads position feedback through a female high-density SUB-D15 connector, up to a 100 kHz operating frequency.
Specify the VW3A3422 when the motor's feedback device is an analog SinCos Hiperface or 1 Vpp encoder rather than a digital RS422/EnDat type. Its lower 100 kHz maximum operating frequency reflects the analog signal path and suits standard servo feedback loops on ATV340 and ATV900 drives.
| Range of Product | Altivar |
|---|---|
| Product or Component Type | Analog encoder interface module |
| Range Compatibility | Altivar Machine ATV340, Altivar Process ATV900, Altivar Process Modular |
| Encoder type | SinCos Hiperface, 1 Vpp |
| [Us] rated supply voltage | 5 V DC 4.75…5.25 V), 12 V DC 11.4…12.6 V), 24 V DC 22.8…25.2 V) |
| Maximum supply current | 0.25 A 5 V DC, 0.1 A 12 V DC, 0.05 A 24 V DC |
|---|---|
| Protection Type | Overload protection, Short-circuit protection |
| Maximum cable distance between devices | 328.08 ft (100 m) |
| Maximum operating frequency | 100 kHz |
| Input signal | Data+, Data-, Sin, RefSin, Cos, RefCos, Temp+, Temp- |
| Output signal | Data+, Data- |
| Connector type | 1 female high density SUB-D 15 |
| Net Weight | 0.33 lb(US) (0.15 kg) |
| Warranty (in months) | 18 |
|---|
| Part number | VW3A3422 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606485441269 |
| Country of origin | ID |
|---|---|
| Shipping weight | 0.15 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for VW3A3422 is 850490.
The EAN (GTIN) of VW3A3422 is 3606485441269.
VW3A3422 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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