YASKAWA HV600 Technical Reference page 501

Code Name
Note:
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name
EF7 External Fault (Terminal S7)
Note:
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name
EOF Emergency Override FWD
Note:
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name
EOR Emergency Override REV
Note:
If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
Code Name
EP24v External Power 24V Supply
Note:
• Set o2-26 [Ext. Power 24V Supply Display] to enable or disable EP24v detection.
• The drive will not output an alarm signal for this alarm.
Code Name
FDBKL Feedback Loss Wire Break
Note:
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• If the drive detects this error, it will operate the motor as specified by the settings of b5-82.
• Parameter L5-42 [Feedback Loss Fault Retry Select] sets the Auto Restart function of this error.
Code Name
FLGT Feedback Loss, Go To Freq b5-83
Note:
• If the drive detects this error, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Selection = Alarm] will activate.
• If the drive detects this error, it will operate the motor at the speed set in b5-83 [Feedback Loss Goto Frequency] as specified by the setting of b5-82.
Code Name
FIRE_ST Fire Stat Open
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Causes
External Fault [H1-06 = 2C to 2F] is set to MFDI
terminal S6, but the terminal is not in use.
Causes
MFDI terminal S7 caused an external fault through an
external device.
The wiring is incorrect.
External Fault [H1-07 = 2C to 2F] is set to MFDI
terminal S7, but the terminal is not in use.
Causes
The digital input terminal set to H1-xx = AF [MFDI
Function Selection = Emergency Override FWD]
activated.
Causes
The digital input terminal set to H1-xx = B0 [MFDI
Function Selection = Emergency Override REV]
activated.
Causes
The voltage of the main circuit power supply
decreased, and the 24 V power supply is supplying
power to the drive.
Causes
The analog input from the terminal set to H3-xx = B
[MFAI Function Selection = PID Feedback ] is more
than 21 mA or less than 3 mA for longer than 1 s in
these conditions:
• b5-82 = 1 [Feedback Loss 4～20mA Detect Sel =
Alarm Only]
• b5-01 ≠ 0 [PID Mode Setting ≠ Disabled]
• H3-01 or H3-09 = 2 [Terminal A1/A2 Signal Level
Selection = 4 to 20 mA]
Causes
The analog input from the terminal set to H3-xx = B
[MFAI Function Selection = PID Feedback ] is more
than 21 mA or less than 3 mA for longer than 1 s in
these conditions:
• b5-82 = 3 [Feedback Loss 4～20mA Detect Sel =
Run At b5-83]
• b5-01 ≠ 0 [PID Mode Setting ≠ Disabled]
• H3-01 or H3-09 = 2 [Terminal A1/A2 Signal Level
Selection = 4 to 20 mA]
Causes
The bypass detected a Fire Stat condition.
6.6 Minor Faults/Alarms
Possible Solutions
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 S7.
Correctly set the MFDI.
Possible Solutions
When the emergency condition is gone, deactivate the digital input
set to Emergency Override FWD.
Possible Solutions
When the emergency condition is gone, deactivate the digital input
set to Emergency Override REV.
Possible Solutions
• Examine the main circuit power supply.
• Turn ON the main circuit power supply to run the drive.
Possible Solutions
Make sure that you install the PID feedback source and it operates
correctly.
Possible Solutions
Make sure that you install the PID feedback source and it operates
correctly.
Possible Solutions
• Check the digital input programmed for Fire Stat Switch (Z2-0x
= 38).
• Check the connected device for continuity.
• Check Bypass Digital Input Invert Settings in Z2-09 to Z2-16.
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