Commissioning control panel with collective detector lines
Troubleshooting procedure
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16.3.1 'Line Fault' error message
If the error message 'Line fault' is displayed for collective detector lines once the
↑ 'Station' has started, the cause may be a change in line resistance.
● Greater resistance, e.g. due to corrosion of the base connections or faulty end-
of-line element
● Less resistance e.g. due to a defective 'Detector' or a faulty end-of-line element
See also
1 Reference measurement with EOL 4k7 and 3k3 [➙ 59]
1 Checking line resistance [➙ 61]
16.4 Troubleshooting procedure
You will find additional information about
the individual steps on the specified
pages.
1. Test the ↑ collective detector line. Link [➙ 60]
2. Test the line resistance. Link [➙ 61]
3. Test the line continuity. Link [➙ 61]
4. Measure the insulation values. Link [➙ 62]
5. Commission the collective detector line step-by-step. Link [➙ 63]
16.4.1 Checking the collective detector line
When testing collective detector lines on the ↑ line card (collective) FCL2002, you
must observe the following points:
● Detectors must not be triggered too soon after each other.
● The total time required to check a collective detector is 50 s.
● Once a detector has been triggered, the internal ↑ alarm indicator flashes for
15 s and the line is automatically reset.
● The length of time after which the line is ready for the next detector to be
triggered varies depending on the line type.
Type Total time required
Transzorb 45 s
EOL22Ex 40 s
EOL 4k7 50 s
EOl 3k3 50 s
Table 3: Total time required to check a collective detector
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