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6 GRT1-ECT Troubleshooting
GRT1-series EtherCAT Communication Unit - Operation Manual
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1-4 Other
E
rror
s -
SmartSlice I/O Communication
This section deals with troubleshooting the SmartSlice I/O communication on the network from a
behavior point of view. The column on the left describes the general perceived problem to the user. The
columns on the right list the possible causes and their remedies.
6-1-4 Other Errors - SmartSlice I/O Communication
Problem
Cause
Actions
The Communication Unit’s
Unit Power LED is flash-
ing.
The Unit power supply capacity is insuffi-
cient.
Check the entire SmartSlice I/O Sys-
tem’s power supply requirement and
replace the power supply with one that
has sufficient capacity.
The I/O Unit repeatedly
checks LEDs (TS LED
flashing green and red).
The Communication Unit’s
TS LED intermittently
flashes green. The TS
LED of the I/O Units in
front of the bad connec-
tion light green, while the
TS LED of the I/O Units
behind the bad connection
are OFF.
The slide connector on the left side of
the affected Unit is not connected prop-
erly.
Connect this slide connector properly
and turn the power ON again.
The Communication Unit’s
TS LED flashes green and
the I/O Unit’s TS LED is
ON.
The End Unit is not connected properly.
Connect the End Unit properly and turn
the power ON again.
Communications
Unit Indicator
I/O Unit Indicator
Bad connection
Not lit (OFF)
LED Indicator
Communications
Unit Indicator
I/O Unit Indicator
Bad connection
LED Indicators
Summary of Contents for GRT1-ECT SmartSlice
Page 3: ...GRT1 series EtherCAT Communication Unit Operation Manual Revised March 2012 ...
Page 18: ...15 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 30: ...1 EtherCAT Network 1 8 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 38: ...2 EtherCAT Communication details 2 8 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 52: ...4 GRT1 ECT Details 4 10 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 76: ...6 GRT1 ECT Troubleshooting 6 12 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 136: ...A4 Appendix Object Dictionary A4 16 GRT1 series EtherCAT Communication Unit Operation Manual ...
Page 140: ...Revision 2 GRT1 ECT series EtherCAT Slave Unit User s Manual ...