STYLE 6 SHORT LOOP xtrouble

Notifier NFS2-640: STYLE 6 SHORT LOOP x

Notifier NFS2-640·0 views·0 field notes

What This Code Means

The control panel has detected a short circuit on the SLC loop configured for Style 6 or Style 7. The panel is driving both ends of the loop to maintain communication in an unsupervised method.

Common Causes

1Short circuit on the SLC loop wiring
2Faulty addressable device
3Incorrect wiring of ISO-X isolator modules

Resolution Steps

Locate and correct the short circuit condition on the SLC loop, then press the RESET button to clear the latching trouble. Ensure ISO-X isolator modules are used if the system is configured for Style 7.

Manual References(6)

1notifierNFS-640Operations2003Open

2notifierNFS2-640Operations2013p. 75Open

3notifierNFS2-640Datasheet2017Open

Field Notes

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Related Codes

INST ON L1No devices are installed on the system.Low Chamber valueA maintenance warning level indicating that the detector chamber reading is too low, which typically signifies a hardware malfunction.STYLE 6 POS. LOOP xThere is an open circuit on the positive side of loop x.INVREPThe device has returned a response to the panel that the panel did not expect.FREEZE WARNINGThe temperature read by a Heat+ or Acclimate Plus™ detector has dropped below the low-temperature threshold, typically 40°F (4.44°C).