Omron GRT1 - 27-11-2006, Operation Manual

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Troubleshooting using the LED Indicators
Section 4-2
4-2-2 Unit System Errors
If power supply to the Unit and the SmartSlice I/O Units is correct, the Unit will
start initialization at power up. During the Initialization process the RUN LED
indicator will remain OFF. Once the initialization has been completed cor-
rectly, the RUN LED indicator will be ON.
The table below indicates the states which can occur during startup and oper-
ation of the Unit.
4-2-3 SmartSlice I/O System Errors
If power supply to the Unit is correct and the Unit has initialized correctly,
problems in the SmartSlice I/O system can be determined using the TS LED
indicators on the PROFIBUS Communication Unit as well on the individual
SmartSlice I/O Units. When lit or flashing, the TS LED indicator can be either
Green or Red.
The tables below lists the TS LED indicator options.
Communication Unit
RUN ERR Probable cause Correction
Not Lit Not Lit Unit is initializing --
Flashing Unit has encountered a fatal system error during
initialization and is unable to continue. Replace the Unit.
Lit The Unit has been initialised, but encountered
fatal error during Operation. Restart the Unit. If the problem persists, replace
the Unit.
Lit Not Lit The Unit is Operational. No errors encountered.
Lit Not a valid combination.
TS Colour Probable cause Correction
Not Lit --- Power is not being supplied to the Unit. Refer to section
4-2-1 Power Supply Errors
.
Flashing
(1 Hz)
Green Joining SmartSlice I/O Units to network. Wait until the SmartSlice I/O Units have been
added to the network.
There is a possible break in the connection
between individual slices, or one of the Smart-
Slice sockets has not been connected properly
to its left neighboring connector.
The TS LED Indicator on all correctly connected
slices are flashing, whereas the TS LED Indica-
tors on the non-correct Units are Not Lit (OFF).
Check the connection between slices at the point
where the first Unit is located with its TS LED
Indicator OFF.
Ensure that all slices are connected correctly to
each other.
The End Unit is not (properly) attached. Smart-
Slice Communication does not start up.
The TS LED Indicator on all SmartSlice I/O Units
slices are flashing.
Check the End Unit connection and ensure that it
is correctly connected to the SmartSlice system.
Red SmartSlice bus communication error occurred. Check whether the SmartSlice I/O System’s
base block is connected properly.
When the registration table function is enabled,
the actual configuration does not match the reg-
istered configuration. Correct the configuration and turn the power ON
again.
The total number of I/O points in the SmartSlice
I/O Systems exceeds the maximum. Correct the Unit configuration and number of I/O
points and turn the power ON again.
Flashing
(2 Hz) Green Restore operation in progress Wait until the restore operation is completed.
Backup operation in progress Wait until the backup operation is completed.