VW3A3407-3 VW3A3407-2 VW3A3407-1 VW3A3407-4

The Schneider VW3A3407 is a high-performance encoder interface card designed for Altivar 61, Altivar 71, and Lift series variable speed drives, enabling precise closed-loop motor control using 24 V push-pull encoder signals. It improves drive accuracy by processing real-time speed feedback, making it ideal for demanding applications such as lifting systems, high-dynamic motion control, and precision industrial automation.

This module is widely used where stable torque control and accurate speed regulation are required under variable load conditions.

Technical Specifications

Specification	Detail
Model	VW3A3407
Module Type	Encoder Interface Card
Compatible Drives	Altivar 61 / 61Q / Altivar 71 / 71Q / Lift
Encoder Type	24 V push-pull incremental encoder
Input Signals	A, B, /A, /B
Supply Voltage	24 V DC (20–30 V range)
Supply Current	≤ 0.175 A
Maximum Cable Length	Up to 500 m
Maximum Frequency	300 kHz
Input Impedance	1000 Ω
Protection Functions	Overload protection, short-circuit protection
Voltage Logic Levels	Logic 0 ≤ 1.5 V / Logic 1 > 11.5 V
Output Type	Push-pull differential encoder interface
Installation	Internal plug-in option card
Power Supply	Supplied via drive backplane
Dimensions (L×W×H)	160×90×40 mm
Weight	0.20 kg
Operating Temperature	0 °C to 50 °C
Storage Temperature	−25 °C to 70 °C
Protection Rating	Installed inside drive enclosure

Recommended Related Models

Model	Why It’s Recommended
VW3A3401	RS422 encoder interface card (alternative feedback type)
VW3A3307	Profibus DP communication card
VW3A3327	PROFINET communication card
Altivar 71	High-performance vector control drive platform

Popular Schneider Altivar Drives

Model	Key Strength
Altivar ATV61	Process control and HVAC optimization
Altivar ATV71	High-performance torque and motion control
Altivar ATV320	Compact machine automation drive
Altivar ATV900	Advanced industrial process control

Applications

Closed-loop vector control systems with encoder feedback
High-precision speed regulation for industrial motors
Crane, hoist, and lifting equipment control systems
Machine tools requiring accurate torque and position control
Heavy-duty industrial automation under variable load conditions

Advantages

High Precision Feedback: Enables accurate speed and torque control
Long Cable Support: Up to 500 m encoder cable distance
High-Speed Processing: Supports up to 300 kHz signal frequency
Robust Industrial Protection: Built-in overload and short-circuit protection
Stable Push-Pull Signal Handling: Reliable performance in noisy environments