Rockwell Automation WebPak 3000 DC Drives Hardware Reference, Installation and Troubleshooting - Manual (Page 44)

4-2 WebPak 3000 DC Drive Hardware Reference
4.4 Verifying Optional Kits
Verify that each optional kit has been installed correctly according the appropriate instructions.
Refer to the appropriate instruction manuals. See section 1.5 and 1.6.
4.5 Checking the Regulator Led Status
Two LEDs are located on the Regulator board to indicate the operating status of the Regulator
board. The cover on the OIM must be removed to observe these LEDs. Check and observe
these LEDs when the OIM is not communicating with the regulator. Typically, there will be no
fault indication on the display when the OIM is not communicating with the regulator board.
If a fault can be displayed, the fault would be OIM COMMUNICATIONS TIMEOUT (F00011).
The two LEDs are labeled CPU OK and OIM COMM OK. CPU OK will be on whenever the inputs
and outputs are being scanned (I/O is not scanned during power-up diagnostics and following
certain faults).
OIM COMM OK will be on whenever the regulator board and the OIM are commu-
nicating properly. The following table summarizes the possible states of the two LED indicators.
CPU OK LED OIM COMM OK LED Indication(s) and Action(s)
Off Off • No power - verify that the drive power is on. Check for 24 volt at
the regulator board terminals 1 and 15 (COM).
• LED failure - cycle power and verify that both LED's illuminate
briefly (lamp test).
• Power-up diagnostics failed - replace the Regulator board.
On • Combination not used.
Blink • Combination not used.
On Off • I/O is being scanned, regulator is not communicating with the
OIM - check OIM cable, check voltages at the OIM.
On • I/O is being scanned, the regulator is communicating with the
OIM, no faults - this is a normal condition, no action is required.
• I/O is being scanned, the regulator is communicating with the
OIM, - diagnose/correct the fault condition and reset the fault
from the selected control source fault reset.
• Power-up diagnostics in progress (lamp test).
Blink • Combination not used.
Blink Off • I/O is not being scanned, Regulator board is not communicating
with the OIM,
- initialize card: set P.010, P.306, P.307 and
execute MEMORY SAVE,
- press the OIM fault reset key
- check the OIM cable or cycle power.
On • I/O is not being scanned, the regulator board is communicating
with the OIM,
- initialize card: set P.010, P.306, P.307 and
execute MEMORY SAVE,
- press OIM fault reset key,- record information on the fault.
Blink • I/O is not being scanned, regulator board is not communicating
with the OIM,
- initialize card: set P.010, P.306, P.307 and execute M. S.
- press the OIM fault reset key
- record any information about the fault and cycle power.