Andover Controls ACC EMX 160 Installation Guide

Copyright © 1992 Andover Controls Corporation, 300 Brickstone Square, Andover, MA 01810 All Rights Reserved.Subject to change without notice.
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Order No. 30-3001-199
ACC EMX 160 Installation Guide
Your warranty is effective for 18 months starting on the date the system is shipped.
Before You Begin
Warning
Be sure wiring and installations comply with local, state, and national electrical codes.
Version B
Power Requirements
The first two modules receive power from the Infinet con­troller on-board power supply and operate on 24 to 26 VDC. You can add additional EMX modules other than an EMX
160. Usually, one or two more modules may operate on in­ternal power; then you must add an external power supply source of 24 VDC and properly connect the modules to it. (See the ACC EMX Modules Configuration Guide.)
The EMX 160 consumes up to 11 mA at 24 VDC.
Environmental Requirements
The EMX 160 operates in the same environment that any Infinet controller operates in.
Input Characteristics
Digital inputs have the following requirements:
Figure 1 shows the EMX 160 module.
Figure 1. The EMX 160 Module
EMX 160
EXTERNAL
POWER
RET IN1 IN2 RET IN3 IN4 RET IN5 IN6 RET IN7 IN8
BOARD
1 2
Dimensions
• Input Impedance—24K
referenced to 5 V
Counter inputs have the following requirements:
• Input Impedance—24K
referenced to 5 V
• Filtering—Corner Frequency at 106 Hz –20 db/decade
Install the EMX 160
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 outlined in the steps that follow.
Caution
Each EMX 160 module is approximately 6.13 × 5.72 × 1.52 in.
Be sure you disconnect the Infinet controller’s AC power source before you connect any modules.
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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 160 module. Notice that it has a connector on the top and on the bottom. Plug the top connector into the Infinet controller.
3.If you are connecting more than one module to your Infinet controller, connect the second one to the bottom of the first.
4.Set the BOARD switch to 1 on the first EMX 160 on the controller, and the BOARD switch to 2 on the second
EMX 160. If you do not plan to connect more than one EMX 160 module, the BOARD switch can be set to
either 1 or 2.
Never set two modules of the same model number to the same board number.
3. Connect the External Power Supply
Figure 3 shows the jumper in the two possible positions, one for the internal power supply, the other for the external. Each is set to the internal position when you receive it.
Figure 3. Jumper Positions for Internal and External Power Supplies
Jumper Position, Internal Power Supply
Jumper Position, External Power Supply
Note
You need to change the jumper position only on the mod­ule(s) actually connected to an external power supply, not on any other modules. Never change the jumper position of other modules.
Wire the Inputs
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 160.
Figure 2. Location of External Power Connection
EMX160
Power Supply Jumper
EXTERNAL
POWER
RET IN1 IN2 RET IN3 IN4 RET IN5 IN6 RET IN7 IN8
BOARD
1 2
Connect External Power Supply Here
Caution
Do not remotely ground any part of the sensor wiring. Re­mote grounds connected to a return terminal could make the controller operate incorrectly or damage the equip­ment. The signal return is not a true earth ground. It is an electronic reference point necessary to interpret the sen­sor properly. Do not externally ground sensor or switch terminals that return to the module or controller.
Caution
Although inputs usually function properly with unshield­ed sensor wire, you may need shielded wire if you run the wire as follows:
• In the same conduit with other noise-generating conductors such as 60 Hz AC power.
• In long runs close to large power-consuming or power­generating equipment that can produce 60 Hz noise.
4. Reposition Jumper on One Module
The Berg type connector to the left of the external power supply connection has a jumper that you reposition to in­dicate you are using external power.
We recommend you run input wiring in a conduit separate from AC power or output wiring and avoid long wiring runs.
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Caution
Follow the rules below when wiring inputs:
• Bundle excess wires toward the back of the controller cabinet to avoid any contact with circuit boards.
• Wires should never be within 1 in. of any component on the printed circuit board.
• Be careful when stripping wire not to drop small pieces of wire inside the module.
If you violate any of these rules, the controller could mal­function.
Notice that the inputs are to the right on the module. They are labeled RET, 1, 2, RET, 3, 4, and so on. The RET screw goes to the two input points that follow it.
You wire the inputs as follows:
1.Slip the first wire for the first sensor under the input point screw for input 1 and tighten the screw down on it.
2.Slip the first wire for the second sensor under the input point screw for input 2 and tighten the screw down on it.
3. Slip the ground wires from both the first and second sensors under the RET screw above input point 1 and tighten the screw down on them.
4. Slip the ground wires from both the first and second sensors under the RET screw above input point 1 and tighten the screw down on them.
5. Repeat the steps for each pair of inputs. Figure 4 shows how a counter or digital input is wired.
Figure 4. Wiring Diagram for Counter/Digital Input
1 (input point 1)
RET (return)
Troubleshoot
If you have problems with Infinet controller after installing the module, see the Andover Controls Infinet Controller Troubleshooting Guide.This manual also contains informa­tion on how to test your inputs.Refer to the EnergyNet and Infinet Configuration Guide to troubleshoot network and power supply problems.
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.
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.
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