Yaskawa Modbus TCP/IP Installation - Manual (Page 12)

4 Option Components
12 YASKAWA ELECTRIC TOBP C730600 57B 1000-Series Option SI-EM3 Installation Manual
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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
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 the power-up diagnostic LED sequence is
completed are described in Table 4 . Wait at least 2 seconds for the power-up diagnostic
process to complete before verifying the states of the LEDs.
Table 4 Option LED States
Name
<1> Remove the drive front cover to check the status of the LED. Be careful not to touch the main circuit terminals or
the control board in the drive.
Indication
Operating Status Remarks
Color Status
MS
– OFF Power supply OFF Power is not being supplied 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 has detected a fatal
(unrecoverable) error
Red Flashing Non-fatal error occurred
The option has detected a non-fatal
(recoverable) error
NS
– OFF Offline or power supply OFF –
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
<1>
Green OFF 10 Mbps is established
–
Green ON 100 Mbps is established
LINK/ACT
<1>
Green OFF Link is not established
Green ON Link is established
Green Flashing
Link is established and there is
network activity
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