Andover Controls ACC EMX 170 Installation Guide

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Order No. 30-3001-442

ACC EMX 170
Industrial Unit

Your warranty is effective for 18 months starting on the
date the system is shipped.

You can connect one or more EMX modules to most Infi-
net controllers that have an expansion port. If you are not
sure which controller to attach modules to, refer to the
ACC EMX Modules Configuration Guide.

Warning

This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. 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.

Version A

Before You Begin

You can install only one EMX Industrial Unit on a con­troller. Before you install this module, be sure you are not
exceeding the number of inputs allowed on any particular
controller. Refer to the ACC EMX Modules Configuration
Guide (also enclosed with this product) for details.

Dimensions

As shown in Figure 1, each EMX Industrial Unit Sensor
module is approximately 3.62

As shown in Figure 4, each EMX Industrial Unit Buffer Board
is approximately 6.12

The units operate in the same environment as any Infinet
controller. The EMX Industrial Unit is designed for flush

panel mounting ( DIN).

Figure 1. Dimensions of the of the EMX Industrial
Unit

× 2.25 × 1.56 in.

1

--­4

× 3.62 × 3.25 in.

3.62

Warning

Be sure wiring and installations comply with local, state,
and national electrical codes.

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 limites applicables aux
appareils numériques de la class A prescrites dans le
Règlement sur le brouillage radioélectrique édicté par le
ministère des Communications du Canada.

3.62

Power Requirements

The EMX Industrial Unit consumes up to 15 mA at 24 to
26 VDC.

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Wire Requirements

You wire the sensor with six-conductor, 24-gauge wire
with overall shield and 12 pF/ft capacitance between con­ductors and 22 pF/ft capacitance between one conductor
and others connected to the shield, Anixter 9I2408501
plenum or Anixter 9D240850 non-plenum. You may ex­tend up to 180 ft of wire from the sensor to the Infinet
controller.

Install the EMX Industrial Unit

1. Unpack

Do not damage the packaging material while unpacking.
You should have the following parts:

• EMX Industrial Unit Sensor Module

• EMX Industrial Unit Buffer Board (where required)

• Shielded wire with 6 or 8 conductors (not included)

• Wire for External Thermistor (optional)

• Infinet twisted pair cable (optional)

• Wire for electro-static discharge protection (not
included)

3. Wire the Sensor

Wire the EMX Industrial Unit Sensor Module to the EMX
Industrial Unit Buffer Board or to the built-in buffer
board port on the controller itself, if applicable (see the
installation guide for the controller):

1. Insert one wire under each of the following terminals on
the board and tighten the screws down on them: 1, 2, 3,
4, 5, 6.

Figure 2 shows the location of the terminals on the EMX
Industrial Unit.

Figure 2. EMX Industrial Unit Terminal Block

Negative ( )

(+)Positive

6-Conductor

Wire

1234 5 6 7 8 9 10 11

–

Shield (SHLD)

External Thermistor

Certain controllers include a built-in EMX Industrial Unit
buffer board. In these cases, the port location is shown in
the controller’s installation guide.

2. Connect Buffer Board to the Infinet
Controller (if Required)

Caution

Be sure you disconnect the Infinet controller’s AC power
source before you connect any modules.

Check the installation guide that accompanies the control­ler to see if a buffer board is required to connect to the
controller. If it is required, connect the buffer board to the
Infinet controller as follows (otherwise proceed to wire
the sensor as described in the next section):

1.Look on the bottom of your Infinet controller for an ex­pansion port in approximately the center of the panel.

2. If you plan to use the Service Tool in the EMX Industrial
Unit Service Port, you can connect the module to the
Infinet, as described in the next section. Refer to the
controller installation guide for information regarding
Infinet cables.

3. Insert the two external thermistor wires under terminals
10 and 11. Tighten the screws down on the wires.

4. Attach a minimum 14 AWG ground wire, maximum
3 ft long, to the electro-static discharge screw.

Figure 3 shows the location of the electro-static discharge
screw.

5. Attach the other end of the electro-static discharge wire
to solid earth ground.

2.Look at the EMX Industrial Unit buffer board. Notice
that it has a connector on the top. Plug the connector
into the Infinet controller.

This protects the EMX Industrial Unit from electro­static discharge, which could permanently damage the
unit or severely shorten its life.