Automated Logic UNI/59 Technische instructies - Pagina 7

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page; refer to the U5I Module Driver document

for details.

Setting the flow sensor's zero point

(T-Line modules)

1. Turn off the Air Handling Unit serving the

VAV box you are calibrating.

2. In SuperVision, view the UNI module

driver Status page (FB#15).

3. On the Flow Calibration table, subtract the

FB's Current Value from the 0.00 Value.

For example, if the Current Value is 128

and the 0.00 Value is 130, the result is 2

(130 - 128 = 2).

4. On the module driver's Parameter page,

enter this result in the Flow Zero Offset

parameter.

5. Check the module driver's Status page

again. If the Adjusted Value on the

Calibration table matches the 0.00 Value,

calibration is complete. If not, repeat steps

3 through 5.

Troubleshooting

If there is a problem and you are not receiving

correct values from the equipment, use the

Diag Port to troubleshoot the problem (see

Figure 2 on page 3).

1. On the module driver Parameter page, in

the Diagnostic Port Setup section, enter

the connection information you will be

using.

2. Connect a DC95 or DC99 cable between

the Diag Port and a computer that is

running a communications program like

HyperTerminal or Terminal. To make your

own cable, use the diagrams in Figure 8.

3. Set up your communications program

with the correct COM port and baud rate

settings to display the diagnostic

information output by the UNI/59. The

diagnostic messages have been written to

Revised 1/3/01 • UNI/59

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Figure 8. Diag Port wiring diagrams

help you understand what is happening;

see Figure 9 on page 8.

4. Refer to "Troubleshooting Tips" for

possible solutions. If you are unable to

solve the problem, save the diagnostic

capture to a file and contact Technical

Support at (770) 429-3002.

Understanding the Diagnostic

Capture

Different levels of detail are provided by the

five diagnostic levels. Level 4 contains the

most detail and is shown in the example in

Figure 9 on page 8. The diagnostic level is

determined by the Diagnostic Port Setup

section on the Parameter page.

Troubleshooting Tips

If you are having trouble communicating with

the UNI/59, check these items before

contacting Technical Support.

• Make sure the serial cable is connected

at both ends. In more complex systems,

make sure that all cables involved are

attached correctly.

• Make sure the UNI/59 and the T-Line or

U-Line modules have power and are

turned on. In more complex systems,

make sure all equipment has power and

is turned on. Some devices, especially

communication devices, receive power

from a source other than a power cable

or adapter (for example, some devices

receive power through communication

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# '" (

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