FACP Manuals Logo
FACPManuals
Ask AI
Ask AI
INVREP
trouble

Notifier NFS2-640

94 views·0 field notes

What This Code Means

The device has returned a response to the panel that the panel did not expect.

Common Causes

  • 1Device functionality issues
  • 2Incorrect addressing
  • 3Wiring issues

Resolution Steps

Check the device for functionality, addressing and wiring.

Manual References(2)

Field Notes

Loading field notes...
Sign in to share a field note

Related Codes

LO VALThe detector chamber reading is too low, or the detector is not operating properly. In CLIP mode, this may also indicate a failure of the thermistors, CO element, or infra-red element, or a freeze warning.INST ON L1No devices are installed on the system.PREALMThe control panel activates a Pre-Alarm Warning when a detector exceeds its programmed Pre-Alarm Alert or Action level, providing an early warning of incipient or potential fire conditions.TROUBLThe system enters System Trouble mode when the control panel detects an electrical fault or a trouble condition on a supervised circuit or module.STYLE 6 POS. LOOP xThere is an open circuit on the positive side of loop x.

Related Questions

What is the maximum device capacity on the NFS2-640 in FlashScan mode vs. CLIP mode, and can you mix protocols on the same SLC loop?How do I troubleshoot a ground fault on the NFS2-640 SLC loop?What are the NAC circuit specifications for the NFS2-640, and when do I need an external NAC booster panel?
All NFS2-640 trouble codesNFS2-640 panel page