6 GRT1-ECT Troubleshooting
6 - 2
GRT1-series EtherCAT Communication Unit - Operation Manual
6-1 Troubleshooting with LED indicators
The figure below shows the available LED indicators on the EtherCAT Communication Unit and on the
SmartSlice I/O system attached to it. The GRT1-ECT and the SmartSlice I/O Units are operating
normally when all of the LED indicators are lit green.
Reference
Not shown in the figure above is a Turnback Unit. The Turnback Unit also provides I/O PWR,
UNIT PWR and TS LED Indicators.
The LED indicators can be used to determine the following categories of errors
• Power errors
• Startup errors
• SmartSlice I/O Unit errors
• EtherCAT errors
Errors in the Power supply of the Unit or the external I/O are indicated by the UNIT PWR and I/O PWR
LED Indicators.
Troubleshooting UNIT Power
The UNIT PWR LED Indicator shows whether or not sufficient power is supplied to the EtherCAT
Communication Unit and the SmartSlice I/O Units in order for them to startup and operate properly.
A UNIT PWR LED Indicator is provided on the following Units:
• GRT1-ECT EtherCAT Communication Unit
• GRT1-TBL Left Turnback Unit
The table below shows the LED Indicator options.
6-1-1 Power Supply Errors
RUN LED: Indicates the status of the EtherCAT Communication Unit.
ERR LED: Indicates the status of EtherCAT Communication Unit.
TS LED: Indicates the status of the SmartSlice I/O System.
UNIT PWR: Indicates the status of the Unit power supply.
I/O PWR: Indicates the status of the I/O power supply.
TS LEDs: Indicate the status of each SmartSlice I/O Unit.
0 0
2
3
4
5
6
7
8
9
1
0
2
3
4
5
6
7
8
9
1
ON
ON
+V
+V
-
V
+V
+V
-V
-V
UNIT
UNIT
I/O
DC24V
DC24V
INPUT
INPUT
REGS
REGS
NC
NC
ADR
ADR
BACK
BACK
1
2
3
4
RUN
RUN
ERR
ERR
TS
TS
UNIT PWR
UNIT PWR
I/O PWR
I/O PWR
OMRON
GRT1-ECT
x10
x10
x1
x1
IN
ADR
OUT
L/A
L/A
FG
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 ...