Product Overview

The SRS/SRM50 is a high-resolution motor feedback system designed for precise rotary position sensing in industrial automation applications. As part of SICK’s rotary HIPERFACE® family, it delivers accurate angular position data using sine/cosine signals with 0.3 angular second interpolation resolution when processed with 12-bit analog inputs. The system features a compact design and is ideal for use in high-performance motion control systems where precise feedback is critical. With support for tapered shaft resolver mounting via spring plate, the SRS/SRM50 ensures reliable mechanical alignment and long-term stability under dynamic operating conditions. Its robust construction and proven performance make it suitable for demanding environments requiring consistent positional accuracy across a wide temperature range.

Key Features and Technology

The SRS/SRM50 leverages advanced resolver technology to provide high-resolution angular feedback with 0.3 angular second interpolation capability, enabling precise position sensing even at high rotational speeds up to 6,000 rpm. The system uses a precise metal code for identification and is compatible with the HIPerface® electrical interface standard, ensuring seamless integration into existing control systems. Sine/cosine signals are delivered as differential analog outputs (SIn, refSIn, coS, refcoS) with a frequency range of 0 kHz to 200 kHz, allowing for accurate signal processing and minimal noise interference. The system supports both single and dual channel configurations depending on the motor type, identified by the label on the motor itself. This technology ensures reliable performance in motion control applications where precision and repeatability are essential.

Technical Characteristics

The SRS/SRM50 operates within a supply voltage range of 7 V DC to 12 V DC, ensuring compatibility with standard industrial power supplies. Output signals for sine/cosine functions are provided as differential analog signals (SIn, refSIn, coS, refcoS) and operate at frequencies between 0 kHz and 200 kHz. The system achieves a resolution of 0.3 angular seconds through interpolation of the sine/cosine signals using 12-bit processing. It features an 8-pin male connector with an 8-wire radial cable of 1.5 m length, facilitating easy installation and wiring. The mounting is supported via spring plate and tapered shaft resolver support, ensuring secure mechanical attachment to motors. All technical specifications are designed for consistent performance under varying operational conditions.

Configuration and Integration

The SRS/SRM50 integrates directly into motion control systems using the HIPerface® electrical interface standard. The system is identified by a label on the motor itself, which specifies the correct type (e.g., type Id Single SrS: 22h). Connection is made via an 8-pin male connector with an 8-wire radial cable of 1.5 m length. The differential analog signals (SIn, refSIn, coS, refcoS) are compatible with standard position encoders and motion controllers that support HIPerface® interface protocols. Proper mounting requires the use of a spring plate with tapered shaft resolver support to ensure mechanical stability and alignment. Integration is straightforward due to standardized signal outputs and clear labeling on both the motor and feedback system.

Operating Environment

The SRS/SRM50 is designed for operation in harsh industrial environments, with a working temperature range of –30°C to +115°C. This wide temperature tolerance ensures reliable performance across diverse operating conditions, from cold storage facilities to high-temperature manufacturing lines. The system is rated IP 40 when the mating plug is connected and IP 65 when fully enclosed, providing protection against dust and limited water exposure. It operates reliably within a supply voltage range of 7 V DC to 12 V DC, making it compatible with common industrial power sources. These environmental ratings ensure durability and long-term functionality in demanding applications where exposure to temperature extremes or contaminants is expected.

Industrial Applications

The SRS/SRM50 motor feedback system is ideal for use in precision motion control systems such as robotic arms, CNC machines, and automated assembly lines. Its high-resolution output and robust design make it suitable for applications requiring accurate position feedback at speeds up to 6,000 rpm. The system’s compatibility with HIPerface® interface standards enables integration into a wide range of industrial automation platforms. It is particularly effective in environments where mechanical stability and signal integrity are critical. Applications include packaging machinery, material handling systems, and high-speed positioning equipment where reliable feedback ensures consistent performance and repeatability over time.