Product Overview

The SICK DBS36/50 is a robust incremental encoder designed for precise position feedback in industrial automation applications. It features a compact design with a 6 mm shaft and flat end, ideal for integration into rotating machinery where reliable motion sensing is required. Constructed from stainless steel shaft and aluminum housing and flange, the encoder offers excellent durability under demanding conditions. With an IP65 enclosure rating, it provides protection against dust and water jets, making it suitable for use in harsh environments. The device operates within a wide temperature range of –20 °C to +85 °C (–35 °C to +95 °C on request) and supports supply voltages from 7 to 30 V DC. Its universal 8-wire cable connection ensures easy integration into existing systems, while reverse polarity and short-circuit protection enhance operational safety.

Key Features and Technology

The DBS36/50 delivers incremental output signals via HTL/push-pull interface with a maximum output frequency of ≤ 300 kHz and a load current capacity of ≤ 30 mA. This technology ensures high-speed position detection while maintaining signal integrity under varying loads. The encoder includes reverse polarity protection, safeguarding against incorrect wiring, and short-circuit protection (only when Us and GND are correctly connected). It is designed as a standard product and does not qualify as a safety component under the Machinery Directive. However, all electronic failures are considered hazardous. Signal quality may decrease with prolonged operation or high speeds due to self-heating effects of up to 3.3 K per 1,000 rpm. The device is not intended for permanent continuous operation.

Technical Characteristics

The SICK DBS36/50 has a shaft diameter of 6 mm with flat end and is made from stainless steel. The housing and flange are constructed from aluminum, providing mechanical strength and thermal stability. The unit weighs +150 g (with cable), or 0.224 kg, making it lightweight yet durable. It features an 8-wire universal cable connection of 1.5 m length with PVC insulation. Permissible shaft loads are 40 N radial and 20 N axial. The supply voltage range is 7 to 30 V DC, with reverse polarity protection built-in. Output short-circuit protection applies only when Us and GND connections are correct. Maximum output frequency is ≤ 300 kHz, and load current is limited to ≤ 30 mA. The enclosure rating is IP65, and the permissible relative humidity is 90% (condensation not permitted).

Configuration and Integration

The DBS36/50 integrates seamlessly into automation systems through its standard HTL/push-pull incremental output interface. The universal 8-wire cable with a 1.5 m length simplifies installation across various machinery types. Connection is straightforward due to the standardized pinout and compatibility with common industrial signal processing equipment. The device supports operation from 7 to 30 V DC, allowing flexibility in power supply design. Reverse polarity protection ensures safe operation even during incorrect wiring. Short-circuit protection is effective only when Us and GND are correctly connected. For optimal performance, ensure the encoder is not operated continuously due to potential signal degradation over time. Designers should account for self-heating of up to 3.3 K per 1,000 rpm when determining system operating conditions.

Operating Environment

The DBS36/50 operates reliably in environments with temperatures ranging from –20 °C to +85 °C under standard conditions (–35 °C to +95 °C available on request). The permissible relative humidity is 90% (condensation not permitted), ensuring performance stability in humid settings. The device can be stored at temperatures between –40 °C and +100 °C without packaging, though it should not be operated continuously beyond its rated limits. Self-heating of up to 3.3 K per 1,000 rpm must be considered when defining the actual operating temperature range. The IP65 enclosure provides protection against dust ingress and water jets, making it suitable for use in industrial settings with exposure to dirt or splashing liquids. Operation outside specified conditions may lead to reduced performance or signal degradation.

Industrial Applications

The DBS36/50 is well-suited for applications requiring precise position feedback in rotating components such as conveyor systems, robotic joints, and machine tools. Its compact size, robust construction, and reliable incremental output make it ideal for use in automation equipment where motion monitoring is essential. The encoder’s ability to operate within a wide temperature range and its protection against dust and moisture enhances reliability in diverse industrial environments. It is commonly used in packaging, material handling, and manufacturing processes involving rotating shafts. Due to its standard product classification and non-safety component status under the Machinery Directive, it supports general-purpose motion control without requiring safety certification. However, all electronic failures are considered hazardous, and continuous operation should be avoided to prevent signal degradation.