u
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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