YASKAWA V1000 Technical Manual page 256

6.4 Fault Detection
Acceleration and deceleration times are set
too short.
The load is locked up.
Parameters are not set appropriately.
Motor brake engaged.
LED Operator Display
Cause
Fault output by DriveWorksEZ
LED Operator Display
Cause
Data has not been received from the PLC,
triggering the watchdog timer.
LED Operator Display
Cause
An external fault was received from the PLC
with other than F6-03 = 3 "alarm only" (the
drive continued to run after external fault).
Problem with the PLC program.
LED Operator Display
Cause
An external device has tripped an alarm
function.
Wiring is incorrect.
Incorrect setting of multi-function contact
inputs.
LED Operator Display
Cause
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Increase the acceleration and deceleration times (C1-01 through C1-08).
Check the machine.
Check the settings of parameters F1-10 and F1-11.
Ensure the motor brake releases properly.
dWFL DriveWorksEZ Fault
dWAL DriveWorksEZ Program Error Output
Correct the cause of the fault.
MECHATROLINK Watchdog Timer Error
E5
The watchdog timed out.
Execute DISCONNECT or ALM_CLR, then issue a CONNECT command or SYNC_SET command
and proceed to phase 3.
Option Card External Fault
EF0
An external fault condition is present.
• Remove the cause of the external fault.
• Remove the external fault input from the PLC.
Check the PLC program and correct problems.
External Fault (input terminal S1)
EF1
External fault at multi-function input terminal S1.
External Fault (input terminal S2)
EF2
External fault at multi-function input terminal S2.
External Fault (input terminal S3)
EF3
External fault at multi-function input terminal S3.
External Fault (input terminal S4)
EF4
External fault at multi-function input terminal S4.
External Fault (input terminal S5)
EF5
External fault at multi-function input terminal S5.
External Fault (input terminal S6)
EF6
External fault at multi-function input terminal S6.
External Fault (input terminal S7)
EF7
External fault at multi-function input terminal S7
Remove the cause of the external fault and reset the fault.
• 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.
• Check if the unused terminals set for H1-oo = 20 to 2F (External Fault).
• Change the terminal settings.
EEPROM Write Error
Err
Data does not match the EEPROM being written to.
•
Press the
• Correct the parameter settings.
• Cycle power to the drive.
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
button.
Refer to Diagnosing and Resetting Faults on page
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
279.