YASKAWA GA800 Series Technical Reference page 340

7.5 Minor Faults/Alarms
Code Name
FWD/REV Run Command Input
EF
Error
Note:
• If the drive detects EF, the motor will ramp to stop.
• If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name
EF0 Option Card External Fault
Note:
• The drive detects this error if the alarm function on the external device side is operating.
• If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
• Set the stopping method for this fault in F6-03 [Comm External Fault (EF0) Select].
Code Name
EF1 External Fault (Terminal S1)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name
EF2 External Fault (Terminal S2)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name
EF3 External Fault (Terminal S3)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name
EF4 External Fault (Terminal S4)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
Code Name
EF5 External Fault (Terminal S5)
Note:
If the drive detects this error, the terminal assigned to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will be ON.
340
Causes
A forward command and a reverse command were
input at the same time for longer than 0.5 s.
Causes
The communication option card received an external
fault from the controller.
Programming error occurred on the controller side.
Causes
MFDI terminal S1 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-01 = 2C to 2F] is set to MFDI
terminal S1, but the terminal is not in use.
Causes
MFDI terminal S2 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-02 = 2C to 2F] is set to MFDI
terminal S2, but the terminal is not in use.
Causes
MFDI terminal S3 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-03 = 2C to 2F] is set to MFDI
terminal S3, but the terminal is not in use.
Causes
MFDI terminal S4 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-04 = 2C to 2F] is set to MFDI
terminal S4, but the terminal is not in use.
Causes
MFDI terminal S5 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-05 = 2C to 2F] is set to MFDI
terminal S5, but the terminal is not in use.
Possible Solutions
Examine the forward and reverse command sequence and correct
the problem.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input from the controller.
Examine the operation of the controller program.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S1.
Correctly set the MFDI.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S2.
Correctly set the MFDI.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S3.
Correctly set the MFDI.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S4.
Correctly set the MFDI.
Possible Solutions
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Correctly connect the signal line to MFDI terminal S5.
Correctly set the MFDI.
YASKAWA SIEPC71061737B GA800 Drive Technical Reference