YASKAWA CIMR-VU BA0001 Technical Manual page 271

Digital Operator Display
Cause
An external device has tripped an alarm
function.
Wiring is incorrect.
Incorrect setting of multi-function contact
inputs.
Digital Operator Display
Cause
-
Digital Operator Display
Cause
Parameters are not set appropriately.
Wiring for PID feedback is incorrect.
There is a problem with the feedback sensor.
Digital Operator Display
Cause
Parameters are not set appropriately.
Wiring for PID feedback is incorrect.
There is a problem with the feedback sensor. Check the sensor on the controller side. If damaged, replace the sensor.
Digital Operator Display
Cause
Motor insulation is damaged.
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
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 ENTER button.
• Correct the parameter settings.
• Cycle power to the drive.
Excessive PID Feedback
FbH
PID feedback input is greater than the level set b5-36 for longer than the time set to b5-37. Set b5-12 to
2 or 5 to enable fault detection.
Check the settings of parameters b5-36 and b5-37.
Correct the wiring.
• Check the sensor on the control side.
• Replace the sensor if damaged.
PID Feedback Loss
This fault occurs when PID Feedback Loss Detection is programmed to fault (b5-12 = 2) and the PID
FbL
Feedback < PID Feedback Loss Detection Level (b5-13) for the PID Feedback Loss Detection Time
(b5-14).
Check the settings of parameters b5-13 and b5-14.
Correct the wiring.
Ground Fault
GF
• Current shorted to ground exceeded 50% of rated current on output side of the drive.
• Setting L8-09 to 1 enables ground fault detection in models 2A0020 to 2A0069 and 4A0011 to 4A0038.
• Check the insulation resistance of the motor.
• Replace the motor.
Fault Name
Possible Solution
Fault Name
Possible Solution
Refer to Diagnosing and Resetting Faults on page
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
6.4 Fault Detection
298.
6
271