Result Not Available; Earth Fault Search Example - Simplex 4100ES Installation Manual

• The fault is on an auxiliary output that was excluded from the search.
The problem may have to be found manually and then corrected in some of the above scenarios.
17.3.4 No Fault
If the message in the lower right corner of the LCD reads NO FAULT, it means the IDNet channel search could not locate any earth faults on
that channel.
17.3.5

Result Not Available

If the message in the lower right corner of the LCD reads RESULT NOT AVAILABLE, it means there is no result to view. This message comes
up only when you have selected "Last Search Result" on the menu.
17.4

Earth Fault Search Example

The illustration below shows a MINIPLEX system with one transponder that has three earth faults:
• SPS NAC on the SPS in the Main Panel
• RPS AUXPWR output on the RPS in Transponder 1
• IDNet channel in Transponder 1
The panel reports two earth faults, one for each power supply. The third fault is as yet unreported.
The example below shows the progression of events in finding and repairing the three faults. They are presented as instructions to a
technician who does not yet know about the third fault.
A. Find and repair the fault in the main panel.
1. After opening the Earth Fault Search diagnostic menu option, select Location Search.
2. Select the SPS located in the Main Panel (this selects the Main Panel as the location for the search).
3. When prompted, select exclusion of AUXPWR circuits.
4. Start the search. (The panel turns on the earth fault search trouble pseudo-point and the keypad inactivity utility pseudo-point to
disable timeout during the search).
5. The search completes. The panel indicates that NAC 2 on the SPS has the earth fault. All cards are reset (and the panel turns off
the earth fault search trouble pseudo-point).
6. Repair the earth fault on NAC 2.
When this is done, the trouble from the SPS clears but the trouble from the RPS is still indicated.
B. Find and repair the indicated fault on Transponder 1.
1. Select Location Search.
page 139
Figure 85: Earth Fault Example
4100ES Fire Alarm System Installation Guide
574-848 Rev. BQ