Simplex 4100ES Installation Manual page 243

Earth Fault Search Example (continued)
Earth Fault
B. Find and repair the indicated fault on Transponder 1.
Search Example 1. Select Location Search.
2. Select the RPS located in Transponder 1 (this selects Transponder 1 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 FAULT NOT FOUND because the fault is on the
excluded AUXPWR circuit. All slaves in Transponder 1 are reset (and the panel turns off the
earth fault search trouble pseudo-point).
6. Repeat the search but include the AUXPWR circuit this time.
7. The search completes. The panel indicates a fault on the AUXPWR point on the RPS. All
slaves in Transponder 1 are reset (and the panel turns off the earth fault search trouble
pseudo-point).
8. Repair the earth fault on AUXPWR.
Even though you have fixed the fault, the trouble from the RPS is still not clearing. Remember
that the only two faults you could see at first were from the SPS and RPS. It is time to find and
clear the next fault.
C. Find and repair the next indicated fault on Transponder 1.
1. Select Location Search.
2. Select the RPS located in Transponder 1.
3. When prompted, select exclusion of AUXPWR circuits.
4. .Start the search.
5. The search completes. The panel indicates a fault on IDNet Channel M2.
6. Start another search, this time an IDNet Channel Search on Channel M2.
7. When prompted, select exclusion of AUXPWR circuits.
8. The search completes. The panel indicates a fault on the IDNet channel between isolators 1
and 2.
9. Repair the earth fault. The trouble from the RPS is cleared.
G-9
Appendix G