Honeywell Excel 50 Installation Instructions Manual page 23

behavior
1 Power-up of the controller
2 Power-up of the controller
Power-up / reset of the
3
controller
4 Anytime
5 Anytime
First power-up, Applicationless
6a
firmware state exported
First power-up, Unconfigured
6b
firmware state exported
First power-up, Configured
6c
firmware state exported
7 Anytime
Table 22. L W
ON ORKS
context
Controller hardware is defective.
Controller hardware is defective.
The controller is applicationless. May be caused by the Neuron chip firmware
when a mismatch occurs on application checksums.
Possible corrupt EEPROM. Use a newly programmed PROM, or EEBLANK and
follow bring-up procedure.
The controller is unconfigured.
The OFF duration is approx. 1 second. Service LED should then turn ON and
stay ON, indicating an applicationless state. The controller is defective – return
to factory.
The OFF duration is 1...15 seconds depending on the application size and
system clock. Service LED should then begin flashing as in behavior 5,
indicating an unconfigured state.
The OFF duration is indefinite (1...15 seconds to load internal EEPROM; stays
OFF, indicating configured state.) The controller is configured and running
normally.
The controller is configured and running normally.
EXCEL 50 INSTALLATION INSTRUCTIONS
Service LED behavior descriptions
likely explanation
23 EN1B-0101GE51 R1105D