PYIS/PYMS Pro Series: Inductive Absolute Hollow‑Shaft Encoder

High-Precision Performance in Harsh Environments
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Inductive Encoders
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Hollow Shaft Absolute Inductive Encoder

  • Hollow shaft with large bore for rotary actuators
  • 21-bit resolution (006° accuracy), absolute position
  • Dust, water and oil resistant, stable in harsh environments
  • Tolerant to eccentricity and axial gap, no precision alignment
  • Lower total cost of ownership, cost-effective sensing

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Product Introduction

The PYIS/PYMS Pro series rotary encoder features a non-contact, high-precision, large-bore absolute design. Its robust suspended-rotor core eliminates mechanical wear, meeting stringent application demands. The encoder offers easy installation and enhanced reliability by minimizing failure modes. The PYMS Pro series encoders comply with rigorous environmental standards including moisture/salt/fungus resistance, aging, thermal shock, and vibration tests. Customizable options include an extended operating temperature range of -55°C to +125°C.

Specifications

WeightResolutionAccuracyMax. operational speedRotor inertia
8 g17-19 bit±0.015°6000 rpm0.042 kg·mm²
13 g17-19 bit±0.01°6000 rpm0.236 kg·mm²
40 g18-20 bit±0.008°8000 rpm0.684 kg·mm²
55 g18-20 bit±0.008°8000 rpm3.338 kg·mm²
70 g19-21 bit±0.006°6000 rpm8.723 kg·mm²
120 g19-21 bit±0.006°6000 rpm39.669 kg·mm²
CommunicationOperating temp.Protection
SSi, BiSS-C, RS-422-30°C ~ +100°CIP 67

Product Application

FAQ

What resolution does the PYIS/PYMS Pro encoder provide?

The PYIS/PYMS Pro series offers up to 21-bit resolution, providing high-resolution absolute angular position feedback for precision motion-control applications.

Does the encoder require precise mechanical alignment?

No. The encoder is tolerant to eccentricity and axial gap variations, reducing the need for precision alignment during installation.

What environmental conditions can the PYIS/PYMS Pro withstand?

The series is designed for demanding environments and offers resistance to dust, water, oil, vibration, moisture, salt, fungus, thermal shock, and aging. Selected configurations can support operating temperatures from -55°C to +125°C.

Why is the large-bore hollow shaft useful?

The large-bore hollow shaft allows the encoder to integrate directly with rotary actuators, shafts, and other rotating mechanisms while saving installation space and simplifying mechanical integration.

Is the PYIS/PYMS Pro suitable for OEM applications?

Yes. The series supports application-specific customization for mechanical integration, environmental conditions, temperature range, and other OEM requirements, making it suitable for specialized motion-control equipment.

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