Consilium Salwico CS4000, Installation Manual

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Installation Manual
Chapter 3: Verification
Salwico CS4000
18
Cable break
No loop units are answering.
- The cable is broken before the first loop unit if no answer is received
on a single fed loop.
- The cable is broken before the first loop unit and after the last loop
unit if the loop is a double fed loop.
Loop units are answering.
Look for the last loop units answering on each side of the loop. The
cable break is situated after or between the answering units.
See
Chapter 2: Test the cable, test 1
for more information.
Earth fault
The CS4000 control unit will inform about which loop or central that
has an earth fault.
Examine the faulty loop to locate the earth fault.
See
Chapter 2: Test the cable, test 3
for more details.
If the earth fault still remains after these steps, examine the cables to all
other devices connected to the fire alarm system.
Short circuit
No loop units answers
Search for the short circuits between the central unit and the first short
circuit isolator.
If only some loop units answer
The CS4000 control unit will report which short circuit isolators that
have been activated. Search for the short circuit between the fault
reported short circuit isolators to find the exact location of the fault.
See
Chapter 2: Test the cable, test 2
for more details.