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YASKAWA
TOEP C730600 91B Modbus TCP/IP Installation Manual
15
Wait 2 seconds minimum for the power-up diagnostic process to complete before you
verify the LED states. The
shows the operating status of the option LEDs after
the power-up diagnostic LED sequence is complete.
Table 4.2 Option LED States
LED
Name
Indication
Operating State
Description
Color
Display
MS
-
OFF
Power supply off
There is no power to the drive.
Green
ON
Option operating
The option is operating normally.
Green
Flashing
Option initializing
The option is configuring an IP address.
Red
ON
Fatal error occurred
The option detected a fatal (unrecoverable)
error.
Red
Flashing
Non-fatal error occurred
The option detected a non-fatal
(recoverable) error.
NS
-
OFF
Power supply OFF or Offline
-
Green
ON
Online communications
established
The option is online and has established
connections.
Green
Flashing
Control connection active
The option is online and has an established
and active control connection.
Red
ON
Communications error (fatal)
The option detected a duplicate IP address.
10/100
Green
OFF
10 Mbps is established
-
Green
ON
100 Mbps is established
LINK/
ACT
Green
OFF
Link is not established
Green
ON
Link is established
Green
Flashing
Link is established and there is
network activity
*1
To verify LED states, you must remove the drive front cover. Do not touch the drive main circuit terminal
or circuit boards when you remove the drive front cover.