Yaskawa Modbus TCP/IP SI-EM3D - Manual (Page 12)

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.
NS
– OFF
Power supply OFF or no
network connection
established.
–
Green ON
Online communications
established
The option is online and has established
connections.
Green Flashing
Control communications
established
The option is online with a control
connection.
Red ON Major fault
The option detected a duplicate IP address
or the control connection timed out.
4 Option Components
12 YASKAWA TOEP YAICOM 18A 1000-Series Option Dual-Port Modbus TCP/IP SI-EM3D Installation Manual