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Digital Operator Display
Fault Name
Cause
Possible Solution
Data has not been received from the PLC
Execute DISCONNECT or ALM_CLR, then issue a CONNECT command or SYNC_SET command and
proceed to phase 3. Refer to the SI-T3 Option Technical Manual for more details on troubleshooting.
Digital Operator Display
Fault Name
EF0
Option Card External Fault
An external fault condition is present.
Cause
Possible Solution
An external fault was received from the PLC
and F6-03 is set to a value other than 3.
• Remove the cause of the external fault.
• Remove the external fault input from the PLC.
Problem with the PLC program
Check the PLC program and correct problems.
Digital Operator Display
Fault Name
EF1
External Fault (input terminal S1)
External fault at multi-function input terminal S1.
EF2
External Fault (input terminal S2)
External fault at multi-function input terminal S2.
EF3
External Fault (input terminal S3)
External fault at multi-function input terminal S3.
EF4
External Fault (input terminal S4)
External fault at multi-function input terminal S4.
EF5
External Fault (input terminal S5)
External fault at multi-function input terminal S5.
EF6
External Fault (input terminal S6)
External fault at multi-function input terminal S6.
EF7
External Fault (input terminal S7)
External fault at multi-function input terminal S7.
EF8
External Fault (input terminal S8)
External fault at multi-function input terminal S8.
Cause
Possible Solution
An external device tripped an alarm function Remove the cause of the external fault and reset the fault.
Wiring is incorrect
• Properly connect the signal lines to the terminals assigned for external fault detection
(H1-
oo
= 20 to 2B).
• Reconnect the signal line.
Multi-function contact input setting is
incorrect
• Check for unused terminals set for H1-
oo
= 20 to 2B (External Fault).
• Change the terminal settings.
Digital Operator Display
Fault Name
Err
EEPROM Write Error
Data cannot be written to the EEPROM
Cause
Possible Solution
Noise has corrupted data while writing to the
EEPROM
• Press “ENTER” on the digital operator.
• Correct the parameter setting.
• Cycle power to the drive.
• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a Yaskawa
representative for instructions on replacing the control board.
Hardware problem
If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a Yaskawa
representative for instructions on replacing the control board.
Digital Operator Display
Fault Name
FAn
Fan fault
Fan failure
Cause
Possible Solution
6.4 Fault Detection
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
371
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Troubleshooting
Содержание U1000 iQpump Drive
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