SAUTER AKM115SAF332: Smart Actuator for ball valve, BACnet/IP
AKM115SAF332: Smart Actuator for ball valve, BACnet/IP
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 Ethernet, Wi-Fi 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 from SAUTER from the App Store allow efficient
installation and commissioning of small systems
• Applications are selected from the library via mobile app and installed on the Smart Actuator
• Ethernet switch, Wi-Fi interface and Bluetooth LE for flexible device communication and system
integration
• BACnet/IP communication (EN ISO 16484‑5) via Ethernet or Wi-Fi interface
• Convenient commissioning, parameterisation and remote access to the system via a mobile app or
with the SAUTER CASE engineering software
• As an IoT device, the cloud connection for remote access takes place via MQTT using TLS
encryption
• 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 up to two room operating units
• Flexibly expandable with up to four I/O modules for comprehensive control tasks
• Pre-assembled cables with mechanically and colour-coded connectors allow fast, error-free wiring
for Smart Actuator and SAIO 100 I/O modules
• 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 including feedback signal
• Electronic, torque-dependent cut-off
• Disengageable gear unit for manual adjustment and local priority operation
• 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
Ambient conditions
Media temperature2) Max. 100 °C
Ambient temperature-10…55 °C
Ambient humidity 5…85% rh, no condensation
Storage and transport temperature-20…70 °C
Inputs/Outputs
Number of universal I/O 2
Type of inputs Analogue input U 0…10 V (Ri = 100 kΩ, ±0.05 V)
Analogue input I 4...20 mA (with ext. resistor 500 Ω or
accessory 053060311**)
Digital input3) Closed: ≤ 1 VDC, 1 mA
Open: ≥ 4 VDC
Ni1000 −20…100 °C (DIN 43760)
Pt1000 −20…100 °C (IEC 751)
Resistor 200…3000 Ω
Type of output Analogue output U 0…10 V (±0.1 V)
Function
BACnet data point objects Max. 100
BACnet client links 16
Control 6 loops
Active COV Subscription 64
Dynamic objects Time programmes 4 (Schedule)
Calendars 3 (Calendar)
Architecture
Processor ARM Cortex-M7 (528 MHz)
RAM 9 MB
Flash 2 × 16 MB external, for data and sys
tem
Flash encryption 128-bit AES
Application data Via CASE Engine or mobile app
Operating system Zephyr
Cycle time 100 ms
Mobile app For commissioning and maintenance
Cloud Via MQTT to IoT hub
Real-time clock For time programmes and calendars
Interfaces, communication
Ethernet switch connection4) Communication protocol BACnet/IP, HTTPS, NTP, DHCP
Connection 2 × RJ45 connector switch (separa
ble)
RS-485 connection (SLC)5) Communication protocol SLC master (max. 4 slave users)
Use ecoLink I/O module, SAIO 100
ecoUnit 1. ecoUnit 3 operating devi
ces
User6) Max. 2 SAIO 100 modules
Max. 4 ecoLink modules
Max. 2 ecoUnit 1/3
Connection 5-pin connector, coded
Cable length Max. 120 m and max. 30 m between
users
Termination Internal, switchable via software
Bluetooth Version BLE 4.2
Range of transmission < 10 m
Radiation 4 mW
Wi-Fi Standard IEEE 802.11 b/g
Indicator LED indicator 2 status LEDs (green/red and blue)
2) At media temperatures < 5 °C or > 100 °C, appropriate accessory must be used
3) Switching thresholds: 2.28 V (0 to 1) and 2.69 V (1 to 0) or 2.19 kΩ (0 to 1) and 2.69 kΩ (1 to 0)
4) Ethernet interfaces up to 1.5 kV, galvanic isolation
5) Not electrically isolated
6) ecoLink modules: EY-EM510F001. EY-EM514F001. EY-EM522F001. EY-EM527F001

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