EXCEL 12 MODULES
Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative:
Automation and Control Solutions
Honeywell GmbH
Böblinger Stra
β
e 17
D-71101 Schönaich
Phone: (49) 7031 63701
Fax: (49) 7031 637493
http://europe.hbc.honeywell.com
Subject to change without notice. Printed in Germany
EN1B-0201GE51 R0905C
Table 3. L
ON
W
ORKS
Service LED Behaviors and Meanings
LED Flashing Pattern
Meaning
1
LED remains OFF after power-up.
Defective device hardware. Suspect power supply
problems, clock problems, or a defective Neuron Chip.
2
LED is ON continuously after first power-up.
Defective hardware.
3
LED flashes at power-up, goes OFF, then comes ON
solid.
Node is applicationless.
4
LED flashes briefly once every second.
This device is probably experiencing continuous
watchdog resets, or the external memory or EEPROM is
corrupt.
5
LED flashes ON and OFF at 0.5 Hz.
Node is unconfigured but has an application.
6a
OFF duration
≈
10 sec. Afterwards, the service LED
turns ON and remains ON, indicating completion of the
blanking process.
Using EEBLANK on a Neuron 3150 Chip-based custom
node.
6b
OFF duration
≈
1 sec. Afterwards, the service LED turns
ON and remains ON.
First power-up with a new PROM on a Neuron 3150
Chip-based custom node. Application less firmware
state exported.
6c
OFF duration is 1...15 sec, depending on the application
size and the system clock. Afterwards, the service LED
begins flashing ON and OFF at 0.5 Hz.
First power-up with a new PROM on a Neuron 3150
Chip-based custom node. Unconfigured firmware state
exported.
6d
OFF duration is indefinite (1...15 sec to load internal
EEPROM; remains OFF).
First power-up with a new PROM on a Neuron 3150
Chip-based custom node. Configured firmware state
exported.
7
LED remains OFF after a short ON duration.
Node is configured and running normally.
8
LED flashes ON for one second and OFF for one
second five times in succession and then remains OFF
for five seconds, after which the pattern is repeated.
Module has received a WINK command from the
network. Other physical outputs are unaffected.
9
LED flashes ON for one second and OFF for one
second four times in succession and then remains OFF
for five seconds, after which the pattern is repeated.
There are two possible causes:
1. Coprocessor
identification. After reset (power-up),
the Neuron Chip waits for the coprocessor's ID
message (sent periodically until acknowledged).
While waiting, the application remains OFF. This wait
status will remain if the hardware ID fails e.g.
because the Neuron application does not match the
hardware.
2. NEC/Neuron communication failure. If a NEC failure
(e.g. NEC application too big, sensor break, etc.) is
detected, the service LED flashes as described at
left, and continues doing so as long as the NEC
failure is recognized.