Andover Controls DCX 250 User manual

Andover Controls Corporation i
DCX 250
Installation Guide
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ii DCX 250 Installation Guide
Version F
Reproduction or distribution forbidden.
Copyright  1997 by Andover Controls.
Subject to change without notice.
Order No. 30-3001-196
Copyright 1997
Andover Controls Corporation
300 Brickstone Square
Andover, Massachusetts 01810
All Rights Reserved.
Published by the Engineering Department at Andover Controls Corporation.
IMPORTANT NOTICE
This product is subject to changewithout notice. This document does not con-
stitute any warranty, express or implied. Andover Controls Corporation re-
serves the right to alter capabilities, performance, and presentation of this
product at any time.
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Andover Controls Corporation iii
Preface
The DCX 250 Installation Guide presents instructions for installing
the DCX 250 on Infinet. It first presents site preparation information
and then step-by-step installation instructions.
This manual does not include programming information. For how to
program the DCX 250, see the Andover Controls Infinity CX
Programmer’s Guide.
We recommend you read the Infinity Network Configuration Guide to
plan your entire network before installing a single controller.
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iv DCX 250 Installation Guide
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Andover Controls Corporation v
Contents
Setting Up the DCX 250
Site/System Setup Requirements .............................................................2
Cabinet Dimensions and Weight ...................................................3
Power Requirements ......................................................................3
Cable Limitations ...........................................................................3
Lightning Protection ......................................................................4
Building Ground Requirements .....................................................4
Inspecting the Ground ....................................................................5
Environmental Requirements ........................................................5
Laying Out the Site Setup ..............................................................6
Installing the DCX 250 ............................................................................7
Unpacking ......................................................................................7
Parts Required ................................................................................7
Mounting ........................................................................................7
Connecting the AC Power Cable to the Power Supply ................. 9
Connecting the Infinet .................................................................11
Wiring the Infinet to the Infinity CX 9000 .................................. 13
Powering Up/Adjusting the Controller ..................................................14
Connecting the Battery ................................................................14
Powering Up ................................................................................14
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vi DCX 250 Installation Guide
Checking That Controller Is Operating .......................................15
Reset Button .................................................................................16
Adjusting the LCD View Angle ..................................................16
Connecting the Andover Controls Service Tool ..........................18
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Andover Controls Corporation vii
Figures
Figure 1. Tag That Identifies the Controller ...............................................6
Figure 2. Dimensions of DCX 250 Cabinet, Top View..............................7
Figure 3. Dimensions of DCX 250 Cabinet, Front View ........................8
Figure 4. Location of AC Power Connection, Inside DCX 250 Cabinet ...10
Figure 5. Metal Plate and Screw for Power Supply Wire .....................11
Figure 6. Location of Infinet Connection, Inside DCX 250 Cabinet .......12
Figure 7. Infinet Cable Wiring ..................................................................13
Figure 8. Location of Battery, Indicator Lights, and Reset Button,
Inside, on Back of DCX 250 Display .......................................15
Figure 9. Location of LCD View Angle Adjustment, Inside,
on Back of DCX 250 Display ...................................................17
Figure 10. Location of Service Port, Inside DCX 250 Cabinet .................18
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viii DCX 250 Installation Guide
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DCX 250 Installation Guide 1
Setting Up the DCX 250
This manual covers the following:
• Site/System Setup Requirements
• Installing the DCX 250
• Powering Up/Adjusting the Controller
This manual does not include programming information. For how to
program the DCX 250, see the Andover Controls Infinity Controller
Programmer’s Guide.
Warranty Registration
Your warranty is effectivefor 18 months starting on the date the system
is shipped.
Warning
Be sure wiring and installations comply with local, state, and national
electrical codes.
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Hardware Installation
2 DCX 250 Installation Guide
Site/System Setup Requirements
Before you proceed to install thesystem, you should map outwhere you
p l a n t o i n s t a l l e a c h c o n t r o l l e r , t e r m i n a l / w o r k s t a t i o n , a n d m o d e m . W h e n
planning the sites, be aware of any electrical interference that may oc-
cur. You also need to be aware of cabinet dimensions, power
requirements, cable limitations, and environmental requirements.
Warning
This equipment has been tested and found to comply with the limits for a
ClassA digital device, pursuanttoPart 15ofthe FCCRules. These limits
are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions in this manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Note
This digital apparatus does not exceed the Class A limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
Avis
Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limitesapplicables aux appareils numériques de la class A
prescrites dansle Règlement sur le brouillage radioélectrique édicté par
le ministère des Communications du Canada.
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Hardware Installation
DCX 250 Installation Guide 3
Cabinet Dimensions and Weight
Each DCX 250 cabinet (if it has a cabinet) is approximately 8.1 ×8.1 ×
3.5 in. and weighs 8.5 lbs.
Power Requirements
Caution
If the DCX 250 is in its own cabinet, it should receive power from its
own independent, unswitched circuit.
The DCX 250 operates on 24 VAC +/–20% 50 or 60 Hz (for smoke con-
trol applications, 24 VAC +10/–15%, 60 Hz). The DCX 250 consumes
up to 18 VA of power.
Cable Limitations
The maximum cable length for Infinet is 4,000 ft at 19,200 baud (up to
32 Infinet controllers). You can extend Infinet beyond 4,000 ft or put
more than 32 Infinet controllers on less than 4,000 ft by using the In-
fiLink 200 amplification module.
Cables that form Infinet are 24-gauge, single-twisted-pair, tinned,
shielded copper wire. Use the following cables1or their equivalents:
Note
You must use shielded cables for Infinet to ensure compliance with the
Class A FCC limits and to communicate reliably.
• Brand Rex # H 9002 (single-pair)
• Anixter # 9J2401021 (single-pair plenum cable)
The cable should have a nominal impedance of 100 Ohms and a
nominal velocity of propagation of 78%.
1. You can also use any cables you may already have in place for ACNET or LBUS.
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Hardware Installation
4 DCX 250 Installation Guide
Capacitance of Infinet cable should be nominal, below 12.5 pF/ft be-
tween conductors and below 22 pF/ft between the conductor connected
to ground and the next conductor.
Lightning Protection
Warning
When running cables between buildings you must install lightning
arresters for Infinet to prevent electromagnetic disturbances.
Use lightning arresters at each point where Infinet cable enters or exits
a building. Use the following arrester:
Two pair gas tube arrester, Andover Controls # 01-2100-299.
Building Ground Requirements
Warning
Be sure that all Infinity hardware products from Andover Controls
Corporation are grounded to true earth ground. This kind of ground
protects the equipment from voltage transients and other power surges
in the area. We cannot guarantee that the controller system will operate
as documented unless you properly ground all controllers.
Warning
Be sure to have your grounds inspected before you begin the
installation process to be sure your municipality follows the National
Electrical Code. Many municipalities do not and may havesubstandard
electrical grounds.
An example of a substandard ground is a galvanized steel cold water
pipe. As the pipe corrodes, it does not act as a true ground. The corro-
sion acts as an insulator, raising the potential of the pipe with respect to
the ground.
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Hardware Installation
DCX 250 Installation Guide 5
When lightning strikes in the area of the installation, it drastically
changes the potential of the earth. Since properly grounded Andover
Controls units respond to changes in potential more rapidly than poorly
grounded electrical systems, a poorly grounded building tries to reach
ground through the Andover Controls system. The surge of current can
destroy electronic components on the controller board.
Surgesof much lowerpotential than lightningalso impact the reliability
of Andover Controls equipment.
Inspecting the Ground
You can check your ground as follows:
1. Check your ground by first inspecting the building power
distribution panel for earth ground termination. If the ground
termination is any of the following, it is not adequate and must be
corrected:
• Does not exist.
• Is connected to a corroded or galvanized pipe.
• Is connected using a small gauge wire (less than 14 AWG).
2. Be sure your Andover Controls cabinet is connected to the ground
with a copper conductor that terminates at the distribution panel.
Environmental Requirements
The DCX 250 operates in rooms with temperatures ranging from 40 to
104°F and with humidity of between 30 and 85%, noncondensing.
The controller is designed to withstand the dust normally present in an
equipment room, without any additional enclosures or filtering.
The cabinet that Andover Controls Corporation encloses the DCX 250
in is an Underwriter Laboratories listed enclosure.
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Hardware Installation
6 DCX 250 Installation Guide
Laying Out the Site Setup
You may want to draw a map of where you plan to put each controller
and store it in a notebook.
Find the tag attached to each controller that gives the numberof the con-
troller. Before you remove any tags, be sure the tag has all of the
following information on it:
• Model number.
• Serial number.
• Location of the DCX 250 controller.
• Communications port theInfinet connectsto on the Infinity CX 9000.
(The DCX 250 installed inside the Infinity CX 9000 cabinet is
automatically on COMM2.)
Figure 1 shows what the tag looks like.
Thencollect the tags. You willneed to know where your controllers are
located when you later assign a name to each controller and each input
and output.
Figure 1. Tag That Identifies the Controller
Model DCX 250
S/N 09878
Volts 24 VAC 50/60 Hz
Amps .55 A
Output Contacts
Volts XXXXX
Amps XXXXX Date XXX
S/N 09878
Location Room 10
DCX 250 Comm Port 2
ANDOVER CONTROLS
Andover Controls Corp.
Andover, MA 01810 USA
Energy Management
Equipment
Tear
Here
U
L

You May
Add as
Reminders
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Hardware Installation
DCX 250 Installation Guide 7
Installing the DCX 250
Unpacking
Be careful when unpacking the unit to not damage the packaging
material—you must reuse it if you ship the product back for repair.
Parts Required
To install a single controller you start with the following parts:
•DCX 250 Controller (in its own cabinet)
• AC Power Cable and Infinet Cable
•Infinity CX 9000 Controller
Mounting
Figure 2 gives dimensions for mounting a DCX 250 any of these ways:
• Fitting entire cabinet in wall cutout so it is flush with wall
• Screwing backplate of cabinet to wall
Figure 2. Dimensions of DCX 250 Cabinet, Top View
2.40
3.70
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Hardware Installation
8 DCX 250 Installation Guide
Warning
Never drill holes in the DCX 250 cabinet or boards. A metal shaving
could easily short circuit the electronics.
Figure 3 shows more dimensions for mounting the DCX 250. You
should connect cables to the DCX 250 before you flush mount it.
Figure 3. Dimensions of DCX 250 Cabinet, Front View
Mounting Hardware Provided
for Conventional Wallboard
Mounting. Must Notch
Cutout for Hardware.
Mounting Holes For #8 Screws
4 Places , (Optional)
3.081.00
1.50
6.71
8.08
Min
Opening
1.50
5.08
8.08
Min Opening
.08
Typ
Mounting Holes
for #10 Screws
4 Places (Optional)
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Hardware Installation
DCX 250 Installation Guide 9
Connecting the AC Power Cable
to the Power Supply
If you ordered the DCX 250 in its own cabinet (to be placed on the In-
finet outside the Infinity CX 9000), the DCX 250 has its own power
supply. So you need to connect the AC power cable.
Warning
Be sure the AC power cable is not connected to an electrical power
source while you are wiring the controller, or you could receive an
electrical shock that is life-threatening.
Note
If the installation requires the secondary of the 24 V transformer to be
grounded, always connect the "neutral" to ground and only ground it at
the transformer.
To connect the AC power cable, proceed as follows:
1. Lift off the front display panel on the DCX 250.
Figure 4 shows the inside of the DCX 250 controller.
Notice the board now directly in front of you is the power supply.
Look to the upper left corner for the AC power connection. You
must wire the AC power to the three screws on the upper left side of
the power supply.
2. Thread the AC power cable through the cutout in the top of the
DCX 250 cabinet.
Caution
Be sure to connect all three wires, HOT, NEUTRAL, and GROUND.
Otherwise, the controller could malfunction.
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Hardware Installation
10 DCX 250 Installation Guide
3. The three screws are labeled GND NEUT HOT. The three wires at
the end of your AC cable are black, white, and green.
4. Place the green wire under the metal plate behind the left screw,
labeled GND.
Figure 4. Location of AC Power Connection,
Inside DCX 250 Cabinet
GND NEUT HOT
FRONT VIEW, CABINET OPEN
SIDE, TOP VIEW
AC Power
Connection
Power Supply
AC Power
Cable Enters
Here
Infinet
Cable
Enters Here
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Hardware Installation
DCX 250 Installation Guide 11
5. Tighten the screw with a flathead screw driver.
Figure 5shows the position of the plate, where to place the wire,and
how the screw fits on the plate. You can see how the screw holds
the plate in place once you tighten it.
Figure 5. Metal Plate and Screw for Power Supply Wire
6. Place the white wire under the metal plate behind the middle screw,
labeled NEUT.
7. Tighten the screw with a flathead screw driver.
8. Place the black wire under the metal plate behind the right screw,
labeled HOT.
9. Tighten the screw with a flathead screw driver.
Connecting the Infinet
You wire the Infinet to the controller using the following procedure:
1. Lift off the front display panel on the DCX 250 controller cabinet.
Look at the board now directly in front of you.
Figure 6 shows the Infinet connection, a block terminal connector in
the upper right corner. You must wire Infinet to that connector.
2. Thread the Infinet cable through the cutout in the top of the
controller.
Insert Wire Here
Metal Plate
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Hardware Installation
12 DCX 250 Installation Guide
Figure 6. Location of Infinet Connection,
Inside DCX 250 Cabinet
GND NEUT HOT
FRONT VIEW, CABINET OPEN
SIDE, TOP VIEW
Infinet
Connection
Power Supply
AC Power
Cable Enters
Here
Infinet
Cable
Enters Here
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