Yaskawa R1000 Series Power Regenerative Unit - Manual (Page 104)

5.4 Alarm Detection
104 YASKAWA ELECTRIC TOEP C710656 08B YASKAWA Power Regenerative Unit - R1000 Instruction Manual
Digital Operator
Display
Minor Fault Name Detail
Alarm Output
(H2-†† = 10)
CoF Current Offset Fault
A fault occurred in adjustment of the automatic current offset when the power
supply was turned on.
YES
Cause Possible Solutions
A fault occurred in the current detection circuit.
Cycle the power supply and check operation.
If the fault occurs again, replace the board or regenerative unit. For information on board
replacement, consult with your Yaskawa representative or the nearest Yaskawa sales office.
Digital Operator
Display
Minor Fault Name Detail
Alarm Output
(H2-†† = 10)
CrST Cannot Reset A fault reset command was entered while the Run command was still present. YES
Cause Possible Solutions
Fault reset was being executed when a Run
command was entered.
• Ensure that a Run command cannot be entered from the external terminals or option during
fault reset.
• Turn off the Run command.
Digital Operator
Display
Minor Fault Name Detail
Alarm Output
(H2-†† = 10)
CyC
MECHATROLINK
Communications Cycle
Setting Error
The MECHATROLINK option card is not set correctly. YES
Cause Possible Solutions
The communications cycle of the
MECHATROLINK option card is out of range.
Correct the setting.
Digital Operator
Display
Minor Fault Name Detail
Alarm Output
(H2-†† = 10)
E5
MECHATROLINK
Watchdog Timer Error
A Watchdog Timer Error was detected. YES
Cause Possible Solutions
There is no continuity in the watchdog timer in
the data that is sent by the host controller. Execute the DISCONNECT or ALM_CLR command, and then move to phase 3 again with the
CONNECT or SYNC_SET command.
Digital Operator
Display
Minor Fault Name Detail
Alarm Output
(H2-†† = 10)
EF0
Option Card External
Fault
An external fault condition is present. YES
Cause Possible Solutions
An external fault was received from the PLC
with F6-03 set to 3, which allows the
regenerative unit to continue running after an
external fault occurs.
• Remove the cause of the external fault.
• Remove the external fault input from the PLC.
There is a problem with the PLC program. Check the PLC program and correct problems.
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