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6-4
Indicator CountermeasuresMeaningDisplayIndicator CountermeasuresMeaning
StatusColor
WD
Green Flashing The CPU Unit of the Card is operating nor-
mally.
---
Red Lit The CPU Unit of the Card is not ready or
the CPU Unit has malfunctioned.
Check the Option Card con-
nector and turn ON the Invert-
er power supply.
Replace the Option Card.
--- Not lit Power is not being supplied from the In-
verter.
The Card is not connected properly and
power is not being to supplied to it.
Check the Option Card con-
nector and turn ON the Invert-
er power supply.
Replace the Option Card.
Note 1. When both of the baud rate setting pins DR0 and DR1 are set to ON, both the MS and NS will
be lit in red.
Note 2. For communications line problems, detailed error codes will be displayed on the indicators of
the Master Unit. Check the error code and take appropriate countermeasures according to
the descriptions in Chapter 15 Troubleshooting and Maintenance of CompoBus/D (Device-
Net) Operation Manual (W267).
Communications Errors Chapter 6