YASKAWA GA50U Series - Page 93

13 Troubleshooting
YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation 93
Code Name Causes Possible Solutions
The wiring is incorrect. Correctly connect the signal line to MFDI
terminal S1.
External Fault [H1-01 = 20 to 2B]
is set to MFDI terminal S1, but the
terminal is not in use.
Correctly set the MFDI.
EF2
External Fault
(Terminal S2)
MFDI terminal S2 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 S2.
External Fault [H1-02 = 20 to 2B]
is set to MFDI terminal S2, but the
terminal is not in use.
Correctly set the MFDI.
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.
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.
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.
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.