Automated Logic U253 Technische instructies - Pagina 4

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Service Pack 1. There is no cost for Eikon

3.0a.

Start-Up Checklist

1. Use the appropriate version of Eikon for

WebCTRL or Eikon 3.0a or later to create

GFBs for U-Line modules. Be sure to

enable the Zone GFB option in Eikon for

WebCTRL or Eikon. Refer to "Writing GFBs

for the U253" on page 9 for more

information.

2. Use the appropriate module driver. (See

"Job Start-Up" on page 3.)

3. Connect the U-Line modules to the Unet

and the UNI.

4. Transfer the U-Line modules' GFBs to the

UNI.

Mounting

Screw the U253 into an enclosed panel using

the mounting holes provided on the cover

plate. Be sure to leave about 2 inches (5

centimeters) on each side for wiring.

Addressing

The U253 has dual rotary switches for

assigning the board address. The top switch

corresponds to the tens digit and the bottom

switch corresponds to the ones digit (see

Figure 2). The U253's address must be the

same as its FB number in the UNI.

For example, if the module's FB number is

nine, set the tens switch to zero and the ones

switch to nine.

Figure 2. Dual Rotary Address Switches

The U253's BACnet Device Instance number

can be assigned by the UNI or individually

Revised 8/14/02 • U253

specified. This number is shown on the UNI

Properties page in WebCTRL or on the UNI

Status page in SuperVision.

Power Wiring

The Unet follows the same specifications as a

legacy CMnet. Refer to the Technical

Handbook for details on legacy CMnets. Also

refer to the Technical Handbook for detailed

information on daisy-chain, star, and hybrid

wiring configurations.

There is a special wire available that contains

a pair of 14AWG wires for power and a pair of

22AWG wires for communication. This wire is

available from:

Magnum Cable Corporation

Cleveland, OH 44110-0500

(800) 421-0820

Product number A3U-LINE

CAUTION The U253 modules are Class 2

devices (less than 30VAC, 100VA maximum).

Take appropriate isolation measures when

mounting a U253 module in a control panel

where Non-Class 2 devices (120V and

greater) or wiring are present.

You can power several modules from the

same transformer by daisy-chaining the

power from one U-Line module to the next.

You must maintain the same polarity.

Do not exceed 100VA or 500 feet (152.4

meters) total of 14AWG wire. The maximum

number of modules on one transformer can

be figured by dividing the VA of the

transformer by the sum of the VA of the

module plus the VA of any accessories. For

example, if the module's power is 9VA,

accessories per module equal 6VA, and the

transformer is 100VA, you could have up to 6

modules on the network. See the formula in

Figure 3 and the example in Figure 4 on page