A Map Fault is caused by a mismatch between the expected circuit database and the actual devices or wiring conditions found on the Signature loop (Page 316) [1].
This typically occurs when a device is replaced with a different model, a module type is changed, or wiring issues like excessive resistance or T-taps are present (Page 291, 298) [1].
Accept the parameters of the new device at the panel if the device count is correct (Page 291) [1].
Use the System Definition Utility (SDU) to define the new module type and download the updated database (Page 295) [1].
Verify circuit integrity and resolve any shorts, opens, or excessive T-taps (Page 304) [1].
Ensure all devices are returned to their original locations to allow the map supervision function to recognize them (Page 291) [1].
