Siemens BACnet User manual

125-5093
Building Technologies
2015
-10-14
BACnet Fume Hood Controller
Vertical Sash with Damper or
Venturi Air Valve and 2-Position
Constant Volume with Damper
Owner's Manual

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Siemens Industry, Inc. Owner's Manual 125-5093
Building Technologies 2015-10-14
Table of contents
How To Use This Manual ..................................................................................................4
Chapter 1 – Product Overview .........................................................................................6
Hardware Inputs ..................................................................................................................6
Hardware Outputs................................................................................................................7
Ordering Notes ....................................................................................................................7
Power Wiring .......................................................................................................................8
Communication Wiring.........................................................................................................8
Controller LED Indicators.....................................................................................................9
Actuators..............................................................................................................................9
Related Equipment..............................................................................................................9
Chapter 2 – Applications.................................................................................................10
Basic Operation .................................................................................................................10
Application 6740 Fume Hood Controller 2-Position Constant Volume..............................10
Application 6741 Fume Hood Controller Vertical Sash Configuration with Damper .........11
Application 6742 Fume Hood Controller Vertical Sash Configuration with Venturi Air
Valve..................................................................................................................12
Application 6700 Slave Mode............................................................................................13
Chapter 3 – Point Database............................................................................................14
Chapter 4 – Basic Service and Maintenance ................................................................21
Basic Service Information..................................................................................................21
Preventive Maintenance ....................................................................................................21
Safety Features .................................................................................................................22
Glossary............................................................................................................................23
Index ............................................................................................................................27

How To Use This Manual
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Siemens Industry, Inc. Owner's Manual 125-5093
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How To Use This Manual
This manual is written for the owner and user of the BACnet Fume Hood Controller. It
is designed to help you become familiar with the Siemens BACnet Fume Hood
Controller and its applications.
This section covers manual organization, manual conventions, symbols used in the
manual, and other information that will help you use this manual.
Manual Organization
This manual contains the following chapters:
 Chapter 1 - Hardware, describes the hardware components and the accessories
that are used with the BACnet Fume Hood Controller.
 Chapter 2 - Applications, describes the control applications available in the model
of the BACnet Fume Hood Controller includes a terminal block for wireable
input/output connections.
 Chapter 3 - Point Database, defines the point database descriptors and includes
address and applications.
 Chapter 4 – Basic Service and Maintenance, describes basic corrective measures
you can take should you encounter a problem when using the BACnet Fume Hood
Controller. For issues not covered in this chapter, consult your local Siemens
Industry representative.
The Glossary describes the terms and acronyms used in this manual.
The Index helps you locate information presented in this manual.
Manual Conventions
The following table lists conventions to help you use this manual in a quick and
efficient manner.
Convention
Examples
Numbered Lists (1, 2, 3…) indicate a
procedure with sequential steps.
1. Turn OFF power to the field panel.
2. Turn ON power to the field panel.
3. Contact the local Siemens Industry
representative.
Conditions that must be completed or
met before beginning a task are
designated with a
⊳
.
Intermediate results (what will happen
following the execution of a step), are
designated with a
⇨.
Results, which inform the user that a task
was completed successfully, are
designated with a
⇨.
⊳Composer software is properly installed.
⊳A Valid license is available.
1. Select
Start
>
Programs
>
Siemens
>
GMS
>
Composer
.
⇨
The Project Management window displays.
2. Open an existing project or create a new one.
⇨
The project window displays.
Actions that should be performed are
specified in boldface font.
Type
F
for Field panels.
Click
OK
to save changes and close the dialog box.
Error and system messages are
displayed in Courier New font.
The message Report Definition
successfully renamed displays in the status
bar.
New terms appearing for the first tim
e are
italicized.
The field panel continuously executes a user-
defined set of instructions called the
control
program
.

How To Use This Manual
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Siemens Industry, Inc. Owner's Manual 125-5093
Building Technologies 2015-10-14
Convention
Examples
This symbol signifies Notes. Notes provide
additional information or helpful hints.
Cross references to other information are
indicated with an arrow and the page
number, enclosed in brackets: [→92]
For more information on creating flowcharts, see
Flowcharts [→92].
Placeholders indicate text that can vary
based on your selection. Placeholders
are specified by italicized letters, and
enclosed with brackets [ ].
Type
A C D H
[ username ] [ field panel #] .
The following table lists the safety symbols used in this manual to draw attention to
important information.
Symbol
Meaning
Description
NOTICE
CAUTION Equipment damage may occur if a procedure or instruction is not
followed as specified. (For online documentation, the NOTICE displays
in white with a blue background.)
CAUTION Minor or moderate injury may occur if a procedure or instruction is not
followed as specified.
WARNING Personal injury or property damage may occur if a procedure or
instruction is not followed as specified.
DANGER Electric shock, death, or severe property damage may occur if a
procedure or instruction is not followed as specified.
Your feedback is important to us. If you have comments about this manual, please
submit them to [e-mail]

Chapter 1 – Product Overview
Hardware Inputs
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Siemens Industry, Inc. Owner's Manual 125-5093
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Chapter 1 – Product Overview
The Fume Hood Controller is a multi-application equipment controller designed to
provide Direct Digital Control (DDC) for various types of Variable Air Volume (VAV)
and 2-position fume hoods.
The controller can operate as an independent, stand-alone, DDC room controller or
it can be networked with a field panel.
The controller provides all termination, input/output, system and local
communication connections.
The controller hardware consists of the controller with cover and mounting bracket
(see Figure BACnet Fume Hood Controller).
The controller board is the central computing/controlling component of the system.
The following applications are covered:
Vertical Sash
Vertical Sash with Damper (Application 6741)
Vertical Sash with Venturi (Application 6742)
2-Position CV with Damper
2-Position with a Constant Volume (Application 6740)
Slave Mode (Application 6700)
Hardware Inputs
Analog
Air velocity sensor(s) – (second sensor
available for field use)
Application 6740
Application 6741
Application 6742
(Optional) Differential pressure
transmitter/Linear Flow input (Vortex Shedder)
Application 6740
Application 6741
Application 6742
External face area Application 6741
Application 6742
Vertical sash sensor(s) Application 6741
Application 6742

Chapter 1 – Product Overview
Hardware Outputs
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Siemens Industry, Inc. Owner's Manual 125-5093
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Digital
ATTN.UNATTN (through DI 2) Application 6741
Application 6742
OCC.UNOCC (through DI 2) Application 6741
Application 6742
(Optional) High/Low select (through DI 2) Application 6740
OCC Face Velocity Setpoint (through ODP –
optional)
Application 6741
Application 6742
(Optional) Startup Mode (through DI 4) Application 6740
(Optional) Remote Emergency Purge (through
DI 6)
Application 6741
Application 6742
Hardware Outputs
Analog
AO 3 Analog Actuation Application 6742
Operator Display Panel (ODP) Application 6740
Application 6741
Application 6742
AO 2 (flow signal, 1 to 10 Vdc) Application 6740
Application 6741
Application 6742
Digital
Autozero Solenoid in Offboard Air Module (DO
8)
Application 6740
Application 6741
Application 6742
(Optional) Alarm (DO 7) Application 6740
Application 6741
Application 6742
(Optional) OFF Mode (DO 6) Application 6740
Application 6741
Application 6742
HI/LO Indication (DO 5) Application 6740
Exhaust damper (DO 1 and DO 2, Floating
Control Actuation)
Application 6740
Application 6741
Ordering Notes
BACnet Fume Hood Controller - Vertical Sash Configuration with
Damper or Venturi Air Valve, 2 Position CV with Damper
570-00701, 570-
00701PA

Chapter 1 – Product Overview
Power Wiring
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Generic Controller I/O Layout. See
Wiring Diagram for application specific details.
Power Wiring
Communication Wiring
The controller connects to the field panel by means of a Floor Level Network (FLN)
trunk. Communication wiring connects to the three screw terminals on the controller
labeled “+” (positive), “-“ (negative), and “ ” (reference).

Chapter 1 – Product Overview
Controller LED Indicators
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Controller LED Indicators
The controller has eleven Light Emitting Diode (LED) indicators (see Figure BACnet
Fume Hood Controller). Table
Controller LEDs lists the type, the abbreviation on the
controller, and the indication of each LED.
Controller LEDs.
LED Type
Label
(if present)*
LED
Number
Indication
DO DO1 - DO8 1 – 8 Indicates the ON/OFF status of the DO
associated with it. A glowing LED indicates that
the DO is energized.
Receive RX 9 Indicates, when flashing, that the controller is
receiving information from the field panel.
Transmit TX 10 Indicates, when flashing, that the controller is
transmitting information to the field panel.
BST
”Basic Sanity
Test”
BST 11 Indicates, w
hen flashing ON and OFF once per
second, that the controller is functioning
properly.
Actuators
Actuators used with the BACnet Fume Hood Controller include electronic damper
motor. This actuator is controlled by the controller to position the damper or air valve.
Related Equipment
Operator Display Panel (ODP)
Sash sensors
Laboratory Exhaust Air Terminal
Differential Pressure Transmitter
Venturi air valves
Air flow sensors
Contact your local Siemens Industry representative for product numbers and more
information.

Chapter 2 – Applications
Basic Operation
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Siemens Industry, Inc. Owner's Manual 125-5093
Building Technologies 2015-10-14
Chapter 2 – Applications
Basic Operation
The BACnet Fume Hood controller provides Direct Digital Control (DDC) technology for
pressure independent Variable Air Volume (VAV) and Constant Volume (CV)
laboratory fume hood applications.
Application 6740 Fume Hood Controller 2-Position
Constant Volume
This application is designed for use with a constant volume or two-position fume hood
in a manifold fume hood exhaust system. Two-position fume hoods have an individual
exhaust damper connected to a central fan. The application modulates the exhaust
flow control device to maintain a high or low flow setpoint based on inputs from the
ODP (Operator’s Display Panel), digital input, an exhaust airflow sensor, and the
controller setpoints.
Application 6740 Control Diagram.