Andover Controls ACC EMX 155 Installation Guide
Copyright © 1992 Andover Controls Corporation, 300 Brickstone Square, Andover, MA 01810 All Rights Reserved.
Click for EMX Menu
Order No. 30-3001-201
ACC EMX 155
Installation Guide
Your warranty is effective for 18 months starting on the
date the system is shipped.
Before You Begin
You can connect one or more EMX modules to most Infinet
controllers that have an expansion port. The particular controllers are covered in the ACC EMX Modules Configuration
Guide (also enclosed with this product).The configuration
guide also tells how many inputs and outputs are allowed for
any particular controller. Before you proceed, be sure the
controller allows modules and the number and type of modules you plan to use.
Warning
Be sure wiring and installations comply with local, state,
and national electrical codes.
Version 1.2
For power requirements when installing multiple modules
see the ACC EMX Modules Configuration Guide.
Environmental Requirements
The EMX 155 operates in the same environment that any
Infinet controller operates in.
Output Characteristics
The two outputs are Form C (SPDT); they also have pulse
width modulation (PWM). PWM allows you to modulate
valves and dampers to 0.1 sec resolution.
All outputs may be programmed or set with manual override switches.
The Form C outputs are rated for 5 A at 24 VAC.
Install the EMX 155
Figure 1 shows the EMX 155 module.
Figure 1. The EMX 155 Module
BOARD
1
2
EMX155
OVERRIDE
AUTOBOFF ON
A
EXTERNAL
POWER
OUTPUT
OUTPUT B
A
NC
NO
NC
NO
C
C
Dimensions
Each EMX 155 module is approximately 6.13 × 4.88 × 1.82 in.
Power Requirements
1. Unpack
Be careful when unpacking the unit or units to not damage
the packaging material—you must reuse it if you ship the
product back for repair.
2. Connect to the Infinet Controller
Connect the module to the Infinet controller as follows:
Caution
Be sure you disconnect the Infinet controller’s AC power
source before you connect any modules.
1. Look at the bottom panel of your Infinet controller. On
that panel is an expansion port in approximately the
center of the panel.
2. Look at the EMX 155 module. Notice that it has a
connector on the top and on the bottom. Plug the top
connector into the Infinet controller.
The EMX 155 consumes up to 42 mA at 24 VDC.
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3. If you are connecting more than one EMX 155 module
to your Infinet controller, connect the second one to the
bottom of the first.
Click for EMX Menu
4.Set the BOARD switch (upper right) to 1 on the first
EMX 155, and the BOARD switch to 2 on the second
EMX 155. If you do not plan to connect more than one
EMX 155 module, set the BOARD switch to 1.
Never set two modules of the same model number to the
same board number.
3. Connect the External Power Supply
(if necessary)
If you are installing multiple modules, you may need an
external power supply. To determine what you need, refer
to the ACC EMX Modules Configuration Guide.
Figure 2 shows where you connect the external power supply
to the 2-pin Berg type connector on the EMX 155.
4. Reposition Jumper of One Module
The Berg type connector immediately to the left of the external power supply connection has a jumper that you
reposition to indicate you are using external power.
Note
You need to change the jumper position only on the module(s) actually connected to an external power supply. Never
change the jumper position of other modules.
Figure 3. Jumper Positions for Internal and External
Power Supplies
Jumper Position,
Internal Power
Supply
Jumper Position,
External Power
Supply
Each is set to the internal position when you receive it.
As shown in Figure 4, you change the jumper position on
the module connected to the external power supply.
Wire the Outputs
You wire the outputs as follows:
Figure 2. Location of External Power Connection
and External Power Supply Jumper
BOARD
1
2
EMX155
OVERRIDE
AUTOBOFF ON
Override
Switches
A
External
Jumper
EXTERNAL
Move
Power
POWER
OUTPUT A
OUTPUT B
NC
NO
NC
NO
C
C
Connect
External
Power
Supply
Here
Figure 3 shows the jumper in the two possible positions, one
for the internal power supply, the other for the external.Move
the jumper to the external power supply position.
You change the jumper position only on the module or modules connected to the external power supply, not on any other
modules.
1. Slip the appropriate wire under the NC screw and
tighten the screw down on it.
2. Slip the appropriate wire under the C screw and tighten
the screw down on it.
3. Slip the appropriate wire under the NO screw and
tighten the screw down on it.
Figure 5 illustrates the wiring for Form C outputs.
Figure 4. Wiring Diagram for Form C Outputs
NC
C
NO
Troubleshoot
If you have problems with the Infinet controller after installing the module, see the Andover Controls Infinet
Controller Troubleshooting Guide.
Refer to the EnergyNet and Infinet Configuration Guide
for information on how to troubleshoot network and power supply problems.
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