Automated Logic U551 Technical Instructions Download Page 4

Revised 8/14/02 • U551

4

© 2002 Automated Logic Corporation

• U-Line  Zone  GFBs

If you have InterOp Tools version 3.0, you 
must install Eikon 3.0a or the InterOp Tools 
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 U551” 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 U551 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 U551 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 U551’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.

The U551’s BACnet Device Instance number 
can be assigned by the UNI or individually 
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 U551 modules are Class 2 

devices (less than 30VAC, 100VA maximum). 
Take appropriate isolation measures when 
mounting a U551 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.  

 Figure 2. Dual Rotary Address Switches

Summary of Contents for U551

Page 1: ...ed trademark of ASHRAE All other brand and product names are trademarked by their respective companies Technical Instructions U55 1 Using the U551 2 Specifications 2 Job Start Up 3 Job Start Up for WebCTRL 3 Job Start Up for SuperVision 3 Start Up Checklist 4 Mounting 4 Addressing 4 Power Wiring 4 Communications Wiring 5 Communicating Through the LogiStat Port 6 Input Wiring 7 Using the LogiStat 7...

Page 2: ...kon User s Guide for more information NOTE To operate this module based on a schedule the UNI must be networked with a gateway module U551 modules have been designed to meet low end high volume terminal control applications As a result time critical applications such as short time delays and trend intervals of less than one minute should not be used with these modules ALC recommends that all time ...

Page 3: ...need these items to properly start up and support U cards UNI 16 with the U1M module driver UNI 30 with the U3M module driver UNI 32 with the UNM module driver or UNI 59 with the U5M module driver Eikon 3 0a or later Figure 1 U551 Layout and Dimensions Ones Tens Gnd Temp Sw LS5v L o g i S t a t Tx Enclosed Energy 88FO E143900 TYPE 000553 Management Equipment R Run n c Gnd AO 1 DO 5 DO 4 DO 3 DO 2 ...

Page 4: ...fied 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...

Page 5: ...is unshielded Shielded cable is not required for the Unet In most circumstances you should have a PROT485 within 250 feet of any U line module on the Unet for surge protection However depending on the frequency of electrical surges in your area the 250 foot recommendation may vary For example if you have frequent electrical storms in your area you may want to use more PROT485s if you have few elec...

Page 6: ...hat it can provide power to the APT If the LED is not on you can provide power to the APT using the Supplemental Power 5V dc connection see Figure 6 on page 7 and the special power cable to a laptop keyboard jack or an external supply such as a 5V dc transformer 3 Define the connection type In SuperVision v3 0 define the connection as Access Port In SuperVision v2 6 define the connection as Direct...

Page 7: ...behind the input port You must remove the cover to access the pull up jumpers The output impedance of a 0 to 5VDC source must not exceed 10kohms The input impedance of the U551 is approximately 1Mohm Dry Contact A 5VDC wetting voltage is used to detect contact position This results in a 0 5mA maximum sense current when the contacts are closed No pulse accumulation inputs are allowed in U551 FBs ex...

Page 8: ...le Be sure the U551 s power is off before wiring any inputs or outputs Connect the output wiring to the screw terminals on the module To verify each output s operation lock the output to a known condition on the Function Block s Properties page in WebCTRL or the Parameter page in SuperVision then make sure the equipment operates as specified Using Flow Sensors The U551 controls air flow in the zon...

Page 9: ...ge in WebCTRL or Parameter page in SuperVision Refer to the Eikon for WebCTRL Microblock Reference Guide or the Eikon Microblock Reference Guide for more information NOTE When installing the UDF be sure to permanently remove the W4 jumper as shown in Figure 12 prior to performing test and balance Writing GFBs for the U55 1 Depending on whether you are using a WebCTRL or a SuperVision system you mu...

Page 10: ...ence Guide You do not need to use BACnet microblocks when writing the GFB unless you have a BACview Keypad Display connected to the UNI You must then use BACnet point microblocks to access U551 points through the keypad Point Identifiers A point can be identified in WebCTRL by its point number and point type in SuperVision a point is identified by its channel number On both systems expander number...

Page 11: ...gital 21 IN 2 Thermistor 32 17 to 213 F 27 to 100 6 C 0 00 0 00 15 88 15 69 Volts 32 0 to 5V Digital 22 Sw Thermistor A3 17 to 213 F 27 to 100 6 C 0 00 0 00 15 88 15 69 Digital B3 LogiStat Temp Thermistor A1 or A2 45 to 100 F 7 22 to 37 8 C 0 00 0 00 15 88 15 69 LogiStat Thermistor 33 17 to 213 F 27 to 100 6 C 0 00 0 00 15 88 15 69 IN 3 or UDF 2 Volts 33 0 to 5V Digital 23 UDF 2 Flow CFM Flow inpu...

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