205
Determining Errors from Indicators
Section 8-2
8-2
Determining Errors from Indicators
The following table shows indicator status, possible error causes, and coun-
termeasures.
With a version
TC4/TC2, when No. 6 of SW2 is turned ON, the opera-
tion indicator will display the output status. Always turn OFF No. 6 of SW2 for
confirmation.
In addition to the above, the status of the following indicators can be used to
determine the cause of and countermeasures for errors.
TC4/TC2
V1.2
Status
Possible causes
Countermeasure
PWR
RUN
ERR
ALM
Not lit
Not lit
Not lit
Not lit
There is no power supply.
Check to see if the Units are linked properly.
The power supply voltage is out-
side the allowable range.
Adjust the voltage to within the range.
The Unit is malfunctioning.
Replace the Unit.
PWR
RUN
ERR
ALM
Green, flashing 0.5 s
---
Red, lit
---
The Unit is malfunctioning.
Cycle the power supply. If the problem persists,
replace the Unit.
PWR
RUN
ERR
ALM
Green, flashing 1 s
Not lit
Red, lit
---
The settings data is corrupted.
Send the Parameter Initialization operation com-
mand to initialize the parameters and then set
them again.
The Unit configuration informa-
tion is corrupted (Basic Units
only).
Send the Register Unit Configuration: Reset
operation command and then cycle the EJ1
power supply.
The Unit is malfunctioning.
Replace the Unit.
PWR
RUN
ERR
ALM
Green, lit
Not lit
Red, lit
Not lit
A Unit is not connected correctly. Check Unit models and the order of connection.
The registered Unit configura-
tion does not match the actual
Unit configuration (Basic Units
only).
Restore the registered Unit configuration or re-
register the configuration.
The same unit number is set for
more than one connected G3ZA
(Basic Units only).
Correct the G3ZA unit number settings and then
cycle the power supply.
There is an error in a connected
G3ZA (Basic Units only).
Refer to the
G3ZA User’s Manual
(Cat. No.
Z200) and take the required countermeasures.
Status
Possible causes
Countermeasure
RUN
Green, flashing
There is an error in a channel
that is currently running.
Read status to determine the channel that has
an error and then determine the cause from the
status of the ERR and ALM indicators.
Summary of Contents for EJ1 EtherCAT
Page 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Page 3: ...iv ...
Page 19: ...xx ...
Page 213: ...188 Detailed Description of Services Section 6 4 ...
Page 227: ...202 Detailed Description of Services Section 7 5 ...
Page 303: ...278 Index ...
Page 305: ......