The SICK EKM36-0KF0A018A is a Servo drives for industrial control and automation applications.

SICK EKM36-0KF0A018A is a multiturn motor feedback system from the EKS/EKM36 series (part no. 1053849) that pairs an 18 bit resolution per revolution with a HIPERFACE DSL® communication interface. Its 7 V to 12 V supply voltage range and −20 °C to +115 °C operating temperature make it a rugged, field-proven choice for mission-critical servo applications in oil and gas environments.

How does the EKM36-0KF0A018A reduce total cost of ownership?

Every specification on this feedback system carries a direct cost or efficiency implication. The 18 bit resolution per revolution and 262,144 measuring steps per revolution allow precise motion control, which reduces scrap and rework in high-value machining or positioning tasks. With 4,096 absolute ascertainable revolutions, the system retains position data without battery backup, eliminating battery replacement costs and the downtime associated with backup failures.

The HIPERFACE DSL® interface uses a single cable for both power and data, which simplifies wiring and lowers installation cost. A maximum initialization time of 500 ms from reaching a permitted operating voltage means the drive is ready quickly after power-up, reducing idle time. The operating current is capped at 150 mA, so the feedback system draws minimal power from the drive's supply, contributing to lower overall energy consumption.

Key specifications that drive reliability

• Supply voltage range: 7 V ... 12 V, compatible with common drive supplies.
• Operating temperature: −20 °C ... +115 °C, with internal sensor temperature not exceeding 125 °C.
• Operating current: Max. 150 mA, minimizing load on the drive's power supply.
• Resolution per revolution: 18 bit, with 262,144 measuring steps per revolution.
• Absolute revolutions: 4,096, enabling multiturn position tracking without backup power.
• Communication interface: HIPERFACE DSL®, a digital protocol for servo feedback.
• Operating speed: 12,000 min⁻¹, supporting highly dynamic servo drives.
• Protection rating: IP50 with mating connector inserted and closed cover (EN 60529-1).
• Shock resistance: 100 g, 6 ms (EN 60068-2-27); vibration resistance: 50 g, 10 Hz ... 2,000 Hz (EN 60068-2-6).
• Weight: 0.1 kg, reducing mechanical load on the motor shaft.

The tapered shaft with stator coupling ensures a secure mechanical connection, while the low moment of inertia of the rotor (4.5 gcm²) and operating torque of 0.2 Ncm contribute to responsive control and reduced wear. The ball bearing life of 3.6 × 10⁹ revolutions supports long service intervals, lowering maintenance costs over the system's life.

Where does this feedback system deliver the most value?

In oil and gas operations, servo-driven valves, pumps and compressors demand feedback that survives vibration, shock and temperature swings. This unit meets these demands with its wide operating temperature range and robust shock and vibration ratings. For example, on a drilling rig's top drive, precise speed and position feedback help avoid costly downtime from misalignment or stalling. The HIPERFACE DSL® interface simplifies integration with modern drives, and the multiturn capability removes the need for homing routines after power cycles, saving setup time during maintenance turnarounds.

Installation and integration notes

Mounting This unit requires attention to the tapered shaft and stator coupling. The permissible shaft movement is ± 0.1 mm radial static and ± 0.05 mm dynamic, and ± 0.1 mm axial static and dynamic, so alignment must be within these limits to avoid premature bearing wear. The 4-pin connector must be mated with a compatible connector to achieve the IP50 protection rating.

For HIPERFACE DSL® integration, follow the drive manufacturer's wiring guidelines. The EMC performance (EN 61000-6-2, EN 61000-6-4 and IEC 61326-3) is achieved when the encoder is mounted in an electrically conductive housing with a screened cable. This shielding practice prevents electromagnetic interference that could cause position errors and unplanned stoppages.

Frequently asked questions

What is the supply voltage for the SICK unit?

The SICK unit operates on a supply voltage range of 7 V ... 12 V, with a maximum warm-up voltage ramp of 180 ms between 0 and 7.0 V.

How does This unit handle high temperatures?

The SICK unit has an operating temperature range of −20 °C ... +115 °C, and its internal sensor temperature may not exceed 125 °C. This makes it suitable for demanding oil and gas environments where heat is a concern.

What is the resolution of This unit?

The SICK unit offers 18 bit resolution per revolution, with 262,144 measuring steps per revolution and 4,096 absolute ascertainable revolutions.

Can This unit be used in high-vibration applications?

Yes, the SICK unit is rated for shock resistance of 100 g for 6 ms (EN 60068-2-27) and vibration resistance of 50 g across 10 Hz ... 2,000 Hz (EN 60068-2-6), making it dependable in rugged conditions.

Contact PetroPartsOnline for parts suited to your application's requirements.

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