Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 200)

Troubleshoot with LED's
Chapter 11
11-3
The following table shows the meaning of the QDC module’s LEDs. The
QDC module monitors its own operation and reports detected conditions
by illuminating its LED’s in the following combinations:
Table 11.A
LED Indicator Conditions
ACTIVE FAULT COMM Condition: We recommend that you:
Flashing Off Off PowerĆup. The QDC module has completed its powerĆup diagnosĆ
tics, the QDC module hardware and firmware are OK, and the QDC
module is awaiting download of the MCC block.
Download the MCC. ProĆSet 600 downloads the
MCC when you switch your PLC from program
mode to run mode.
Flashing Red Yellow Software Error. The QDC hardware and firmware are OK, the last
BTW received by the QDC module had a recognizable Block ID, but
the last MCC received by the QDC module contained a programĆ
ming error.
Use the MCC download procedure in chapter 3 to
correct any MCC programming errors.
Flashing Red Off Software Error. The QDC hardware and firmware are OK, but the
last BTW received by the QDC module did not have a recognizable
Block ID, and the last MCC received by the QDC module contained
a programming error.
1) Use the MCC download procedure in chapter 3
to correct any MCC programming errors.
2) Verify Block ID's in your PLC BTW data files.
Flashing Flashing Flashing You put the Run/Calibrate jumper (E1) in the Calibrate position. Put jumper E1 in the Run position (chapter 2).
Green Off Yellow Normal operation. The QDC hardware and firmware are OK, no
programming errors exist, and the last command data block
received by the QDC module had a recognizable Block ID.
Nothing.
Green Off Off Software Error. The QDC hardware and firmware are OK, no proĆ
gramming errors exist, but the last command data block received by
the QDC module did not have a recognizable Block ID.
Verify Block ID's in your PLC Block transfer write
data files.
Green Red Yellow Limited operation. The QDC hardware and firmware are OK, the
last command data block received by the QDC module had a recĆ
ognizable Block ID, but a programming error(s) exists.
Use the download procedure outlined in chapter 4
to determine and correct programming errors.
Green Red Off Software Error. The QDC hardware and firmware are OK, but a
programming error(s) exists, and the last command data block
received by the QDC module did not have a recognizable Block ID.
1) Use the download procedure in chapter 4 to
determine and correct programming errors.
2) Verify Block ID's in your PLC Block transfer
write data files.
Off Off Flashing Communications Error. The QDC hardware and firmware are OK,
but the module is not completing continuous transmission of status
data blocks to the host PLC processor. The QDC module is inoperĆ
able until continuous BTR communication is reĆestablished with the
host PLC processor.
1) Verify your PLC is in run mode.
2) Reseat your QDC module in the I/O chassis.
3) Check for PLC ladder programming problems.
Off Red Yellow
or Off
Hardware fault. The QDC module is inoperable. 1) Cycle power to the QDC module.
2) Replace the QDC module and return it for
factory repair.
The QDC module was calibrated at the factory before shipment. We
recommend that you re-calibrated it every two years. Use the calibration
procedure in the Reference Manual, publication 1771-6.5.88 dated
November 1992, or return it to the factory with this order number:
1771-QDC/(Rev Letter) – CAL.
Module Calibration