YASKAWA 1000 Series Technical Manual page 10

4 Option Components
Option LED Display
The option has two bicolor, red/green LEDs: one for Module Status (MS) and one for Network Status (NS).
The operational states of the LEDs after completion of the DeviceNet power-up diagnostic LED sequence 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.
Display
Name
Color Status
– OFF
Green
Green Flashing
MS
Red
Red Flashing
Green/Red Flashing
– OFF
Green
Green Flashing
Red
NS
Red Flashing
Green/Red Flashing
Power-Up Diagnostics
An LED test is performed each time the drive is powered up. The initial boot sequence may take several seconds. The
option is successfully initialized when the LEDs complete the diagnostic LED sequence. The LEDs then assume
operational conditions shown in
Sequence
1
2
3
4
5
10
Table 3 Option LED States
Operating Status
Power supply OFF
ON Option operating
Option initializing
ON Fatal error occurred
Non-fatal error occurred
Device self-test
Offline or Power supply OFF
ON Online communications established
Online communications not
established
ON Communications error
Communications time-out
Communication faulted
Table 3.
Table 4 Power-Up Diagnostic LED Sequence
Module Status (MS)
Green
Red
Green
Green
Green
Power is not being supplied to the drive.
The option is operating normally.
There is an incorrect baud rate setting or there is a MAC ID.
A fatal (irrecoverable) error occurred in the option.
A non-fatal (recoverable) error occurred.
Device in self-test mode.
Device is on-line and has connections in the established state.
Device is on-line but has no connections in the established state.
Duplicate MAC ID test has been passed and is on-line but has no
open connections to other nodes.
An error occurred disabling DeviceNet communications.
• MAC ID duplication
• Bus off detected
A communications time-out occurred with the master.
Specific communication faulted device.
• The device has detected a network access error and is in the
communications faulted state.
• The device has then received and accepted an Identify
communication fault request-long protocol message.
Network Status (NS)
OFF
OFF
Green
Red
OFF
YASKAWA ELECTRIC SIEP C730600 43B 1000-Series Option SI-N3 Technical Manual
Remarks
–
Time (ms)
250
250
250
250
-