YASKAWA
SIEPC71061737B GA800 Drive Technical Reference
341
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 = 2C to 2F]
is set to MFDI
terminal S6, but the terminal is not in use.
Correctly set the MFDI.
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
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.
External Fault [H1-07 = 2C to 2F]
is set to MFDI
terminal S7, but the terminal is not in use.
Correctly set the MFDI.
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
Causes
Possible Solutions
EF8
External Fault (Terminal S8)
MFDI terminal S8 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 S8.
External Fault [H1-08 = 2C to 2F]
is set to MFDI
terminal S8, but the terminal is not in use.
Correctly set the MFDI.
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
Causes
Possible Solutions
EP24v
External Power 24V Supply
The voltage of the main circuit power supply
decreased, and the 24 V power supply is supplying
power to the drive.
•
Examine the main circuit power supply.
•
Turn ON the main circuit power supply to run the drive.
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
Causes
Possible Solutions
FbH
Excessive PID Feedback
The
FbH
detection level is set incorrectly.
Adjust
b5-36 [PID High Feedback Detection Lvl]
and
b5-37 [PID
High Feedback Detection Time]
.
There is a problem with the PID feedback wiring.
Correct errors with the PID control wiring.
The feedback sensor is not operating correctly.
Examine the sensors on the control device side.
A fault occurred in the feedback input circuit of the
drive.
Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
Note:
•
The drive detects this fault if the PID feedback input is more than the level set in
b5-36
for longer than
b5-37
.
•
If detected, the terminal assigned to
H2-01 to H2-03 = 10 [MFDO Function Select = Alarm]
will be ON.
•
If the drive detects this fault, it will operate the motor as specified by the stop method set in
b5-12 [Feedback Loss Detection Select]
.
Code
Name
Causes
Possible Solutions
FbL
PID Feedback Loss
The
FbL
detection level is set incorrectly.
Adjust
b5-13 [PID Feedback Loss Detection Lvl]
and
b5-14 [PID
Feedback Loss Detection Time]
.
There is a problem with the PID feedback wiring.
Correct errors with the PID control wiring.
The feedback sensor is not operating correctly.
Examine the sensors on the control device side.
A fault occurred in the feedback input circuit of the
drive.
Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
Note:
•
The drive detects this error if the PID feedback input is lower than the level set in
b5-13
for longer than
b5-14
.
•
If the drive detects this error, the terminal assigned to
H2-01 to H2-03 = 10 [MFDO Function Select = Alarm]
will be ON.
•
If the drive detects this error, it will operate the motor as specified by the stop method set in
b5-12 [Feedback Loss Detection Select]
.
Summary of Contents for GA800 Series
Page 2: ...This Page Intentionally Blank 2 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 20: ...i 3 Warranty Information 20 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 58: ...2 9 Installation Methods 58 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 268: ...5 6 Safe Disable Input 268 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 306: ...6 3 MEMOBUS Modbus Communications 306 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Page 426: ...8 7 Storage Guidelines 426 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...