4-1
4.Fault display and troubleshooting
4.1 General
The MA7200 have the protective and warning self-diagnostic functions. If fault
occurs, the fault code is displayed on the digital operator. The fault contact output
(RA-RB-RC or R1A-R1B-R1C, DO1, DO2 or R2A-R2C) operates, and the inverter
shut off to stop the motor. If warning occurs, the digital operator will display the
warning code. However, the fault-contact output does not operate. (Except some
certain cases, see page on ‘Warning and Self-Diagnosis Functions’). The digital
operator will return to its previous status when the above warning is clear.
•
When a fault has occurred, refer to the following table to identify and to clear the
cause of the fault.
•
Use one of the following methods to reset the fault after restarting the inverter.
1.
Stop the inverter.
2.
Switch the fault reset input at terminal
f
signal or press the RESET key on the
digital operator.
3.
Turn off the main circuit power supply and turn on again.