Rockwell Automation 1746-NO8V SLC 500 8-Point Analog Output Module/ User Manual - Manual (Page 55)

Publication 1746-UM026A-EN-P - September 2003
Module Diagnostics and Troubleshooting 6-3
Interpreting the LED
Indicators The module has 9 LEDs:
•
8 channel status LEDs (for Channels 0 through 7)
•
1 module status LED
Figure 6.1 Module LEDs
Use the following table to interpret the LEDs:
OUTPUT
CHANNEL
STATUS
MODULE
ANALOG
0
1
2
3
4
5
6
7
Table 6.1 1746-NO8 LED Indications
Module LED Status Channel LED Status Indicates
On solid On solid The channel is enabled.
On solid On flashing, 1-flash sequence Open circuit.
On solid On flashing, 2-flash sequence Unused configuration word bits are set
On solid On flashing, 3-flash sequence Illegal range
On solid On flashing, 4-flash sequence Illegal format
On solid On flashing, 5-flash sequence Illegal parameter ID
On solid On flashing, 6-flash sequence User range error (e.g. User_min > User_max)
On solid On flashing, 7-flash sequence Clamp range error
On solid On flashing, 8-flash sequence Illegal fault action
On solid On flashing, 9-flash sequence illegal ramp value
On solid On flashing, 10-flash sequence Illegal limit range
On solid On flashing, 11-flash sequence Illegal preset
On solid On flashing, 12-flash sequence Illegal optional features
On solid Off Module is powering up or the channel is disabled.
On flashing, 1-flash sequence n/a 24V power fail or J4 jumper is missing
On flashing, 2-flash sequence n/a Configuration error
On flashing, 3-flash sequence n/a EEPROM fault
On flashing, 4-flash sequence n/a RAM fault
On flashing, 5-flash sequence n/a Input access error
On flashing, 6-flash sequence n/a Output access error
On flashing, 7-flash sequence n/a ROM CRC failed
Off n/a Module fault condition