Rotary Encoders: Absolute Control of Speed and Position

Modern industrial automation is impossible without precise feedback. To position the working parts of CNC machines, control robotic complexes, and monitor the speed of conveyors and elevators, you need devices capable of reading rotation with micron accuracy. Rotary encoders (angle sensors) handle this task flawlessly.

In the « Dniprovskyi Electrotechnical Plant » online store, you can buy industrial encoders from the world's leading manufacturers. We offer solutions for any application: from basic motor speed monitoring to high-precision positioning in harsh operating conditions.

Incremental vs. Absolute Encoders: Which to Choose?

Depending on the signal processing principle, rotary encoders are divided into two main categories. It is crucial to choose the right type for your control system:

• Incremental encoders: Generate pulses only while the shaft is rotating. The control system counts these pulses to determine speed and the angle of rotation relative to a zero (start) mark. Disadvantage: In the event of a power outage, the current position is lost, and the mechanism must return to its home position. Advantage: Affordable price and easy integration.
• Absolute encoders: Output a unique digital code for each shaft position. The system always "knows" the exact position of the mechanism, even if the sensor was rotated while the power was off. They are indispensable in robotics, cranes, and systems where calibration (homing) is impossible or dangerous.

Key Parameters When Choosing an Encoder

To ensure the sensor integrates correctly into your system and operates without failure, pay attention to the following when purchasing:

1. Resolution (PPR or bits): Determines how accurately the sensor can measure movement.
2. Shaft type: Solid shaft (connected via a coupling), hollow, or blind hollow shaft (mounted directly onto the motor shaft).
3. Electrical interface: HTL (Push-Pull), TTL (RS422), SSI, CANopen, Profibus — the output signal must match the inputs of your PLC or frequency converter.
4. Enclosure protection (IP): For dusty and humid workshops, choose models with a protection rating of at least IP65.

Why Order Rotary Encoders from « Dniprovskyi Electrotechnical Plant »?

A mistake in choosing an encoder can lead to incorrect machine operation and damaged workpieces. Trust the selection to professionals:

• Engineering support: We will help you find a suitable replacement for a failed sensor based on its nameplate or technical specifications.
• Wide assortment: Optical and magnetic encoders in various form factors are available in stock.
• Quality guarantee: We supply only certified equipment with an official warranty.

Provide your equipment with micron precision! Explore our catalog of rotary encoders or contact our managers for a quick consultation and to place an order with delivery across Ukraine.