YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
147
Code
Name
Causes
Possible Solutions
External Fault [H1-06 = 2C to
2F]
is set to MFDI terminal S6,
but the terminal is not in use.
Correctly set the MFDI.
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.
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.
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 board or the drive. For
information about replacing the control
board, contact Yaskawa or your nearest
sales representative.
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 board or the drive. For
information about replacing the control
board, contact Yaskawa or your nearest
sales representative.
HCA
High Current Alarm
The load is too heavy.
•
Decrease the load for applications
with repetitive starts and stops.
•
Replace the drive with a larger
capacity model.