Troubleshooting - YASKAWA MECHATROLINK-II SI-T3 Technical Manual

9 Troubleshooting

9 Troubleshooting
Fault Detection Processing
Faults can be detected by two methods: Drive fault detection and SI-T3 fault detection.
The SI-T3 is notified of drive faults by the internal interface, and the SI-T3 sends the response data, ALARM or
STATUS.
The SI-T3 notifies drive of SI-T3 faults by the internal interface, and the faults are simultaneously sent the response data,
ALARM or STATUS.
The following four types of faults can be detected. The subsequent operation varies depending on the type of fault.
Fault Type
Drive alarm
Alarm
Communications alarm
Drive warning
Warning
Communications warning
Fault Type
Drive alarm
Communications alarm
Drive warning
Communications warning
<1> Refer to Drive Fault Notification on page 32
Note:The meanings of each symbol are as follows.
− : No change
←: Fault notification from Drive
When consecutive alarms occur, the SI-T3 provides notification of the most recent alarm with a MECHATROLINK
response data. If warnings occur simultaneously, notification priority is given to the warning with the lowest warning
code. If alarms and warnings are mixed together, the SI-T3 gives notification priority to alarms.
The Table 21 shows the response data when consecutive alarms or warnings occurs.
Fault Detection
Previous Value Most Recent Value
Alarm
Alarm
Warning
Warning
30
Location
Drive
SI-T3
Drive
SI-T3
Table 20 Fault Type and SI-T3 Processing
SI-T3 Processing
MECHATROLINK Response
STATUS
ALARM
WARNG ALM
−
−
CODE
<1>
1
1
for detail.
Table 21 Response Data for Consecutive Alarms and/or Warnings
Alarm
Warning
Alarm
Warning Warning with the smaller warning code
YASKAWA ELECTRIC SIEP C730600 50A YASKAWA AC Drive-Option Card MECHATROLINK-II Technical Manual
Table 19 Fault Type
Fault that causes damage to the drive or machinery
Interference related to MECHATROLINK-II communications
Illegal operation or minor fault not posing any immediate danger
MECHATROLINK-II communications fault warning
LED
Processing
(ERR)
1 −
No special processing
1
ON Notification to drive
− −
No special processing
− −
No special processing
MECHATROLINK-II Response Data Contents
Alarm
Most recent alarm code
Most recent alarm code
Most recent alarm code
Description
Direction of
Communications
←
←
←
None
STATUS
WARNG
0
1
1
1
Reset
Required
Required
Required
Not required
ALM
1
1
1
0