5.5 Fault Detection
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07) 207
Troubleshooting
5
Cause Possible Solution
An external fault was received from
the PLC with F6-03 = 3 “alarm
only” (causing the drive to continue
running when an external fault
occurs).
• 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.
LED 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.
Cause Possible Solution
An external device has tripped an
alarm function.
Remove the cause of the external fault and reset the fault.
Wiring is incorrect.
• Ensure the signal lines have been connected properly to the terminals
assigned for external fault detection (H1- = 20 to 2F).
• Reconnect the signal line.
Multi-function contact inputs are set
incorrectly.
• Check if the unused terminals have been set for H1- = 20 to 2F
• (External Fault).
• Change the terminal settings.
LED Operator Display Fault Name
Err
EEPROM Write Error
Data does not match the EEPROM being written to.
Cause Possible Solution
-
• Press the button.
• Correct the parameter settings.
• Cycle power to the drive. Refer to Using Fault Trace Monitors on page 245.
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