Consilium Salwico CS4000, Руководство по установке

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Installation Manual
Chapter 3: Verification
Salwico CS4000
17
Trouble shooting
Polarity fault
One or more loop units are not correctly installed if the measured
voltage is much less then 30 VDC. Proceed as follows to locate the loop
units with polarity fault:
1. Divide the cable in two halves.
2. Locate the polarity fault on one of the halves.
3. Divide this half of the cable again into two halves. Continue to
divide the cable into halves until you have found the polarity
fault.
All the section units are correctly installed when the measured voltage is
around 30 VDC.
•
Restart the loop.
•
Continue with the verification, return to
Loops
, step 5.
Wrong number of loop units (only for addressable loops on LB).
If a limited number of loop units do not answer, the problem may
depend on one of the causes listed below. When the correct number of
loop units is installed, return to
Loops
, point 6
.
Cause Remedy
Less loop units found than
configured. Install the missing loop units.
More loop units found than
configured. Compare the found loop units
with the configuration program.
Wrong address for the loop
unit. Set the correct address.
Two or more loop units with
the same address. See
Address error
paragraph
below.
Loop unit is broken. Replace the loop unit.
Note!
Restart the loop by pressing the reset button on the LB3 loop
board after each time you have changed an address. You have to wait
for some minutes after restart to give the loop time to re-boot.
Address error
Use
menu/ 6 Service menu/5 Loops
, choose the relevant loop and then
press
2=Loops Units
to list all found units on the loop. Compare the
found loop units with the ones configured. However, there is a
possibility that two or more loop units with the same address will
answer, which is reported as bad communication, an abnormal
condition.