Toshiba PA912 - Page 88

Chapter 5 Troubleshooting
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If the state display LED of the product displays anything different from the
normal display as described in "Table 1-3 Display details on the TC-net I/O loop
state display LED" on page 10, or if any error is detected in the human
interface station, stop using it immediately and contact one of Toshiba's
service representatives.
Fault diagnosis method for PA912 module
Check the LED status of the module on the front of PA912 module.
Perform diagnosis by referring to the following table.
Table 5-1 Diagnosis of the PA912 using LED (1)
State
name
LED display
State Remedy
RUN ERR
Normal
operation
ON OFF Normal
－
Abnormal
operation
OFF ON Module
error
Replace the module.
Contact one of
Toshiba's service
representatives.
Fault diagnosis of the TC-net I/O loop
Check the LED status of the TC-net I/O loop on the front of PA912 module.
Perform diagnosis by referring to the following table.
Table 5-2 Diagnosis of the PA912 using LED (2)
State
name
State display
Ｌ
ＬＬ
Ｌ
ED Transmission loop connector LED
State Remedy
LP SCAN LNK1 ACT1 LNK2 ACT2
Normal
operation
ON ON ON Blinking ON Blinking Normal
－
Abnormal
operation
OFF OFF OFF Other
than the
above
OFF Other
than the
above
I/O loop
transmission
error
Contact one of Toshiba's
service representatives.
Fault diagnosis of the PROFIBUS transmission
Check the LED status of the FROFIBUS transmission on the front of PA912
module. Perform diagnosis by referring to the following table.
Table 5-3 Diagnosis of FROFIBUS using LED
State name
State display
Ｌ
ＬＬ
Ｌ
ED
State Remedy
CFG COM MODE TOK
Normal
operation
On
(green)
On
(green)
On
(green)
On
(green)
Normal
－
Abnormal
operation
Other
than the
above
Other
than the
above
Other
than the
above
Off
Error Refer to the Table 1-4 (on
page 11)