Desigo™ DXP Primary automation station, BACnet MS/TP, 24 V DXP2.M18 Automation station for control of single zone, variable air and constant air, rooftop units. ● ● ● ● ● ● ● ● ● A6V12153309_en--_c 2022-02-18 Compact, configurable primary automation stations for RTU applications. Operating temperature suitable for rooftop installation. Communication BACnet MS/TP (BTL certified). KNX PL-Link bus to power and connect sensors, actuators, and operator units (including bus power). USB interface.
Features ● ● ● ● ● Built for rooftop unit control. Operating temperature suitable for installing in rooftop unit enclosures. Applications cover a wide array of single zone, constant and variable air options. Fully programmable Operational modes (Comfort, Standby, Economy, Protection, etc.). Functions The selected application and its parameters as well as input and output configuration determine the primary automation station’s functionality.
Technical design Power supply The power supply provides controlled voltages for inputs and outputs. The primary automation stations also supply DC 24 V (max. 100 mA) field supply. The supply is located in the device to simplify wiring and diagnostics. The processor controls the power supply. This ensures clean conditions for field devices connected to the I/Os during startup, shutdown, and undervoltage. Bus power supply The primary automation station includes the bus power for KNX PL-Link.
Mounting The primary automation stations can be snapped onto standard rails or screwed onto a flat surface. Mounting position Ambient temperature -40...70 °C (-40...
9205J01 Terminal cover Break off the cable inlets to insert the cables to the room automation station. To take off the terminal cover: Disposal The device is considered an electronic device for disposal in accordance with the European Guidelines and may not be disposed of as domestic garbage. ● Dispose of the device through channels provided for this purpose. ● Comply with all local and currently applicable laws and regulations.
Power supply NEC Class 2 Transformer with secondary current limitation of max. 4 A or external secondary current fuse Non-renewable fuse Circuit breakers Max. 4A slow-blow Max. 4A, characteristic B, C, D as per EN60898 Transformer secondary neutral connected to approved building ground. Apparent power (VA) for transformer design Load Power Base load including I/O without load by field devices Max. output load Triac at 250 mA each 6 VA 8 x 6 = 48 VA Max. load KNX PL-Link at 50 mA 4 VA Max.
Digital input (inputs X... or D...) Contact query voltage Universal input: 18 V Digital input: 21 V Contact query current Universal input: 1.2 mA, 7.4 mA initial current Digital input: 1.6 mA; 9.4 mA initial current Contact resistance for closed contacts Max. 100 Ω Contact resistance for open contacts Min. 50 kΩ Outputs The outputs are protected against short circuiting and incorrect wiring AC 24 V. Analog (outputs Y10...Y40) Type Range (over range) Resolution Output current AO 0-10 V 0...
Wiring connections Pluggable screw terminals Copper wire or copper stranded wire with connector sleeves 1 x 0.6 mm ø to 2.5 mm2 (22 to 14 AWG) or 2 x 0.6 mm ø to 1 mm2 (22 to 18 AWG) Copper stranded wire without connector sleeves 1 x 0.6 mm ø to 2.5 mm2 (22 to 14 AWG) or 2 x 0.6 mm ø to 1.5 mm2 (22 to 16 AWG) Stripping length 6...7.5 mm (0.24...0.29 in) Slotted screws Size 1, tightening torque 0.6 Nm (0.
Standards, directives and approvals Environmental compatibility 1) The product environmental declaration 1) contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal). Quality ISO 9001 (Quality) 1) Documents can be downloaded at http://siemens.com/bt/download.
DXP0002R1 Connection terminals DXP2.M18-110BR DXP2.M18 Terminal Symbol 21...23 MS/TP , +, - Module Channel MS/TP connection 11, 12 KNX +, - KNX connection 31...41 inputs D1, D2 Digital input 1 1, 2 X1...X4 Universal input 1 5...8 ⏊ System zero V+ Field supply DC 24 V for active sensors 11 1...8 21 1...4 USB 51...52 power 24 V~ 61...
Dimensions All dimensions in mm and inches Without terminal cover 4,2 mm (0.16 in) 165 mm (6.5 in) 9205M01 59,5 mm (2.34 in) 4,5 mm (0.18 in) 104,5 mm (4.11 in) 35,5 mm (1.4 in) 97,6 mm (3.84 in) 6 180 mm (7.09 in) 59,5 mm (2.34 in) Siemens Smart Infrastructure 137,3 mm (5.4 in) 35,5 mm (1.
Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.com/buildingtechnologies Document ID A6V12153309_en--_c Edition 2022-02-18 © Siemens Switzerland Ltd, 2021 Technical specifications and availability subject to change without notice.