EF0
Option Card External Fault
An external fault condition is present.
Cause
Possible Solution
An external fault was received from
the PLC with other than F6-03 = 3
“alarm only” (the drive continued
to run after external fault).
• 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.
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-
oo
= 20 to 2F).
• Reconnect the signal line.
Incorrect setting of multi-function
contact inputs.
• Check if the unused terminals set for H1-
oo
= 20 to 2F (External Fault).
• Change the terminal settings.
Err
EEPROM Write Error
Data does not match the EEPROM being written to.
FbH
Excessive PID Feedback
PID feedback input is greater than the level set b5-36 for longer than the time set
to b5-37. To enable fault detection, set b5-12 = “2” or “5”.
FbL
PID Feedback Loss
This fault occurs when PID Feedback Loss Detection is programmed to fault
(b5-12 = 2) and the PID Feedback < PID Feedback Loss Detection Level (b5-13)
for the PID Feedback Loss Detection Time (b5-14).
5.2 Fault Detection
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YASKAWA ELECTRIC TOEP C710606 47A YASKAWA AC Drive – V1000 Quick Start Guide
