SAUTER AKM115SA: Smart Actuator for ball valve

AKM 115SA: Smart Actuator for ball valve

How energy efficiency is improved

Ball valve actuator with integrated, freely programmable controller and cloud connection in one

device. Can be integrated into a local building automation system via BACnet or into the

SAUTER Cloud via MQTT. Communicates via WLAN and Bluetooth. Automatic adaptation to the ball

valve, precise activation and high energy efficiency with minimal operating noise and smart functions

Features

• Smart Actuator as an intelligent IoT solution for autonomous control of heating and air-conditioning

applications in smart buildings

• Ready-made HVAC standard applications enable efficient installation and commissioning of small

systems

• Applications are selected from the library via smartphone app and installed on the Smart Actuator

• BACnet, Bluetooth LE and WLAN interface for flexible system integration

• Commissioning, parameterisation and remote access to the system are conveniently carried out via

a smartphone app

• As an IoT device, the cloud connection for remote access takes place via MQTT using TLS

encryption

• Extensive diagnostic data from the actuator enables predictive maintenance of installations

• Enables creation of Smart Actuator networks with distributed intelligence

• Optionally, the Smart Actuator can be used flexibly in BA networks due to free programmability via

CASE Suite

• Real-time clock for calendar functions and time programmes

• Two universal I/Os for connecting external sensors and actuators

• Direct connection of a room operating unit

• Flexibly expandable with up to two Smart Actuator SAIO 100 I/O modules for comprehensive

control tasks

• Pre-assembled cables, with colour- and mechanically-coded connectors, allow fast and error-free

wiring

• Fitting without tools using a bayonet ring made of glass-fibre reinforced plastic

• BLDC motor technology enables extensive diagnostic functions

• Intelligent angle of rotation adaptation and detection incl. feedback signal

• Electronic, torque-dependent cut-off

• Gear unit can be disengaged for manual adjustment

• For operating the 2- and 3-way ball valves VKR, VKRA, BKR, BKRA, VKAI, VKAA, BKLI, BKTI and

BKTA, as well as 6-way ball valve B2KL

Technical data

Power supply

Power supply

24 VAC, −10%/+20%, 50…60 Hz

24 VDC, −10%/+20%

Parameters

Surge-voltage resistance

500 V (EN 60730)

Rotational torque

Holding torque1)

Angle of rotation

8 Nm

8 Nm

90°

Response time

200 ms

Running time for 90°

35/60/120 sec.

Characteristic

Linear, (inverse) equal percentage,

(inverse) quadratic, free characteristic

Operating noise (unloaded)

< 30 dB (A)

Ambient conditions

Media temperature2)

Ambient temperature

Max. 100 °C

−10…55 °C

Description of operation

The AKM 115SA Smart Actuator is an integrated combination of a freely programmable automation

station (AS) and a ball valve actuator. Without additional controllers, it enables self-sufficient, energy

optimised control to be set up in primary systems or individual rooms. Together with an ecoUnit room

operating unit and up to two additional SAIO 100 I/O modules, even complex HVAC systems or room

controls can be implemented.

For system integration and programming, the Smart Actuator can be accessed via the communication

interfaces Bluetooth LE, WLAN and RS-485 with BACnet MS/TP.

The application programming is performed with SAUTER CASE Suite. Finished applications can be

stored in the SAUTER Cloud and loaded onto the Smart Actuator from there. Commissioning, access

to application visualisation, and documentation are carried out using SAUTER CASE Suite tools via a

mobile app or via the web interface in the SAUTER Cloud. As an IoT device, the Smart Actuator

connects to the SAUTER Cloud IoT hub via the integrated WLAN interface. The data transmission,

encrypted using TLS, is performed via the MQTT protocol. The Smart Actuator can be integrated into

a building automation network via BACnet MS/TP as an application-specific controller (B-ASC).

The Smart Actuator can be combined with 2-, 3- and 6-way ball valves. It is fitted without force by

means of a bayonet connector. Manual adjustment is performed by disengaging the gears (push

button on the actuator housing) and turning the lever. After the release button is let go, the actuator

remains at the current position and is in “local priority operation” mode (the LED alternately flashes

green and orange rapidly). After the button on the actuator is pressed for more than 5 seconds, the

actuator returns to normal operation and moves to the current position setpoint. The actuator position

is measured via the electromechanical travel measurement system and can be read out via the