OpenAir™ VAV compact controller BACnet MS/TP G..B181..BA VAV compact controllers 5 / 10 Nm with BACnet MS/TP communication • • • • • A6V10631834_en--_f 2021-10-20 GDB181..BA with 5 Nm nominal torque GLB181..
Functions Function Description Communication BACnet MS/TP (RS-485), galvanically separated Functions - Setpoint 0..100% - Actual values for volume flow, position and differential pressure - Volume flow or position control - Override control Open / Close / Min / Max / Stop - Setpoint monitoring and backup mode Supported baud rates 9.6, 19.2, 38.4, 57.6, 78.4, 115.
Product documentation Title Topic Document ID VAV compact controllers BACnet MS/TP Detailed information about the VAV compact controllers with BACnet MS/TP communication A6V10631864 Installation Instruction VAV Modbus / BACnet Mounting / installation instruction A6V10523083 BACnet PICS BACnet Protocol Implementation Conformance Statement A6V10644636 Related documents such as environmental declarations, CE declarations, etc., can be downloaded at the following Internet address: http://siemens.
Push-button addressing Display current address (digits in reverse order) The BACnet address can be set without a separate tool by using the push-button and LED. To display the current address, press button <1s. Colors 1-digits: red 10-digits: green 100-digits: orange Example for address 124: LED Note The address is entered and shown in reverse order. Set new address (digits in reverse order) 1. Enter addressing mode: press button > 1s until LED shines red, then release button (before LED gets dark). 2.
Settings and operating mode Parameterization The OEM generally provides the basic configuration to VAV compact controllers, especially the parameter Vn and the opening direction. The setting of all other parameters depends on the actual application and can be obtained from the ventilation planner or similar. The following parameters must be checked or set prior to commissioning: Parameter Range Description Factory setting Operating mode VAV (flow ctrl.) / POS (position ctrl.
Engineering and commissioning Engineering Engineering mainly consists of implementing the data model into a VAV application, especially sending the setpoint from the supervisory controller to the VAV compact controller and receiving the actual values (flow and position) for control and monitoring. System limitations of BACnet MS/TP apply, especially number of devices per segment and cable lengths depending on the baud rate.
Notes Safety Caution National safety regulations Failure to comply with national safety regulations may result in personal injury and property damage. • Observe national provisions and comply with the appropriate safety regulations. Mounting Mounting positions IP54 protection in following mounting positions 1) Accessory mounting holes 1) Not to be used for fixation of the actuator, use anti-rotation-bracket instead. Maintenance The VAV compact controllers are maintenance-free.
Technical data Power supply Operating voltage G..B181.. AC 24 V ± 20 % (SELV) or AC 24 V class 2 (US) Frequency Power consumption 50/60 Hz at 50 Hz Actuator holds 1 VA / 0.5 W Actuator rotates 3 VA / 2.5 W Function data Positioning time for nominal rotation angle G..B181.. Nominal torque GDB.. 5 Nm GLB.. 10 Nm GDB.. < 7 Nm GLB..
Environmental conditions Applicable standard Operation Transport Storage IEC 60721-3-x Climatic conditions Class 3K5 Mounting location Indoors Temperature general 0…50 °C Humidity (non condensing) 5…95 % r. F. Climatic conditions Class 2K3 Temperature -25…70 °C Humidity 5...95 % r. h. Climatic conditions Class 1K3 Temperature -5…45 °C Humidity 5...95 % r. h.
Diagrams Internal diagrams The VAV compact controller is supplied with two prewired connecting and communication cables. G..B181..
Dimensions G..B181.. 20 71 ø7 4.15 180 87 137 158 min. 100 61 41.3 5 min. 6 43 14 x 12 26.5 8 2 3547M01 9.6 min. 200 Ø 3...8 X= min. 80 X 8 - 16 mm 12.
Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a 6300 Zug Switzerland Tel. +41 58-724 24 24 www.siemens.com/buildingtechnologies Document ID A6V10631834_en--_f Issue 2021-10-20 © Siemens Switzerland Ltd, 2015 Technical specifications and availability subject to change without notice.
