Omron J1000 User Manual page 126

6.4 Fault Detection
LED Operator Display
Cause
Control circuit is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
An external fault was received from the PLC
with other than H5-04 = 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
-
LED Operator Display
Cause
The motor has been damaged due to
overheating or the motor insulation is
damaged.
One of the motor cables has shorted out or
there is a grounding problem.
The load is too heavy.
124
A/D Conversion Fault
CPF22
A/D conversion error.
• Cycle power to the drive.
• If the problem continues, replace the drive.
PWM Feedback Fault
CPF23
PWM feedback error.
Replace the drive.
Drive Capacity Signal Fault
CPF24
Entered a capacity that does not exist. (Checked when the drive is powered up.)
Replace the drive.
MEMOBUS/Modbus Communication 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.
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- = 20 to 2F).
• Reconnect the signal line.
• Check if the unused terminals set for H1- = 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.
Overcurrent
oC
Drive sensors have detected an output current greater than the specified overcurrent level.
• Check the insulation resistance.
• Replace the motor.
• Check the motor cables.
• Remove the short circuit and power the drive back up.
• Check the resistance between the motor cables and the ground terminal .
• Replace damaged cables.
• Measure the current flowing into the motor.
• Replace the drive with a larger capacity unit if the current value exceeds the rated current of the
drive.
• Determine if there is sudden fluctuation in the current level.
• Reduce the load to avoid sudden changes in the current level or switch to a larger drive.
Fault Name
Possible Solution
Refer to Diagnosing and Resetting Faults on page
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
Fault Name
Possible Solution
SIEP C710606 33A OYMC AC Drive – J1000 User Manual
133.
133.