Troubleshooting
6
6.4 Faults
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 343
Code Name Causes Possible Solutions
External Fault [H1-02 = 20 to 2B] is set
to MFDI terminal S2, but the terminal is
not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF3 External Fault (Terminal
S3)
MFDI terminal S3 caused an external
fault through an external device.
1. Find the device that caused the external fault
and remove the cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal
S3.
External Fault [H1-03 = 20 to 2B] is set
to MFDI terminal S3, but the terminal is
not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF4 External Fault (Terminal
S4)
MFDI terminal S4 caused an external
fault through an external device.
1. Find the device that caused the external fault
and remove the cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal
S4.
External Fault [H1-04 = 20 to 2B] is set
to MFDI terminal S4, but the terminal is
not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF5 External Fault (Terminal
S5)
MFDI terminal S5 caused an external
fault through an external device.
1. Find the device that caused the external fault
and remove the cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal
S5.
External Fault [H1-05 = 20 to 2B] is set
to MFDI terminal S5, but the terminal is
not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF6 External Fault (Terminal
S6)
MFDI terminal S6 caused an external
fault through an external device.
1. Find the device that caused the external fault
and remove the cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal
S6.
External Fault [H1-06 = 20 to 2B] is set
to MFDI terminal S6, but the terminal is
not in use.
Correctly set the MFDI.
Note:
Do a Fault Reset to clear the fault.
Code Name Causes Possible Solutions
EF7 External Fault (Terminal
S7)
MFDI terminal S7 caused an external
fault through an external device.
1. Find the device that caused the external fault
and remove the cause.
2. Clear the external fault input in the MFDI.
The wiring is incorrect. Correctly connect the signal line to MFDI terminal
S7.
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