Spectrum Controls 1756-CTR8 - Page 51

Owner’s Guide 0300199-01 Rev. D
Chapter 7
Troubleshooting
The count module has indicators which provide indication of module status.
ControlLogix modules use the following:
LED
This display:
Means
Take this action:
OK Steady Green Light
The inputs are being
multicast
None
OK Flashing Green Light
The module has passed
internal diagnostics but
is not currently
performing connected
communication
None
OK
Flashing Green Light
The module has passed
internal diagnostics but
is not currently
performing connected
communication
None
OK Flashing Red Light
Previously established
communication has
timed out.
Check controller
OK
Steady Red Light
It is likely the module
should be replaced
See below
Under fault conditions the CTR8 will communicate a particular error via a LED
blink code. A description of the fault conditions and LED blink codes is listed
below:
OK LED
SYS LED
Fault Status
RED 1 Blink EEPROM seed completed.
RED 2 Blinks EEPROM seed failed.
RED 3 Blinks EEPROM CRC failed.
RED 4 Blinks Invalid serial number.
RED 5 Blinks Boot code CRC failed.
RED 6 Blinks App CRC failed.
RED
7 Blinks
FPGA configuration fail.