Yaskawa EtherNet/IP User Manual Page 12

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Option LED Display
The option has four LEDs.
Bi-color Status LEDs:
Module status (MS) red/green
Network status (NS) red/green
Ethernet LEDs:
Network speed - 10/100 (MS) green
Link status and network activity - LINK/ACT (NS) red/green
The operational states of the option LEDs after completion of the power-up diagnostic LED
sequence are described in Table 3. Wait at least 2 seconds for the power-up diagnostic process
to complete before verifying LED states.
Table 3 Option LED States
Name
Display
Operating Status Remarks
Color Status
MS
OFF Power supply OFF Power is not being supplied to the drive.
Green ON Normal operation
The option is operating normally and
initialization is complete.
Green Flashing Standby/Initializing
The option is in process of configuring or
waiting for configuration information.
Red Flashing Non-fatal error occurred
The option has detected a recoverable
minor fault such as incomplete
configuration.
Red ON Fatal error occurred
The option has detected an unrecoverable
major fault.
Green/Red Flashing Option self-test The option is in self-test mode.
NS
OFF Power supply OFF
Green ON
Online communications
established
The option is online and has established
connections.
Green Flashing Not connected
The option is online without an established
connection.
Red Flashing Minor fault A minor recoverable fault has occurred.
Red ON Major fault The option detected a duplicate IP address.
Green/Red Flashing Option self-test The option is in self-test mode.
4 Option Components
12
YASKAWA TOEP YAICOM 16A 1000-Series Option Dual-Port EtherNet/IP SI-EN3D Installation Manual
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