Mitsubishi Electric FR-XC-18.5K-PWM Instruction Manual page 143

Causes and corrective actions
Converter indication
Name
Description
Check point
Corrective action
Converter indication
Name
Description
Check point
Corrective action
Converter indication
Name
Description
Check point
Corrective action
NOTE
• If faults other than the above appear, contact your sales representative.
142
PROTECTIVE FUNCTIONS
E. 1
Option fault
The converter output is shut off when a contact failure occurs between the converter and the communication
option.
Appears when the switch for manufacturer setting on the communication option is changed.
• Check that the communication option is plugged into the connector securely.
• Check for excess electrical noises generated around the converter.
• Check that the initial position of the switch for manufacturer setting was not changed.
• Connect the communication option securely.
• Take measures against noises if there are devices producing excess electrical noises around the converter.
• Set the switch for manufacturer setting on the communication option back to the initial position. (Refer to the
Instruction Manual of each option.)
• If the situation does not improve after taking the above measure, please contact your sales representative.
E.6
Main circuit power supply detection fault
Appears if power supply to the main circuit is not detected.
⎯
Contact your sales representative.
E.8
Input power supply fault 1
• When a fault is detected in the power supply frequency,
• When the phase detection cannot be performed for the normal power supply,
• When an overvoltage occurs during power failure or at an input phase loss,
• When the power supply amplitude changes suddenly,
• When the load changes suddenly,
• When the wiring in the phase detection terminals (terminals R, S, and T) is not correct, or
• When the converter with harmonic suppression enabled detects overcurrent during power failure,
it is regarded as a power supply fault, and the outputs of the converter and the inverter are stopped.
Check that the wiring from proper power source is performed correctly.
Correct the wiring.
FR-PU07
Fault 1
indication
FR-PU07
indication E.1
(Alarm Hist)
FR-DU08
E.1
indication
FR-PU07
Fault 16
indication
FR-PU07
indication E.16
(Alarm Hist)
FR-DU08
E.16
indication
FR-PU07
Fault 8
indication
FR-PU07
indication E.8
(Alarm Hist)
FR-DU08
E.8
indication