YASKAWA
TOEPC7106171FD FP605 DRIVE INSTALLATION & PRIMARY OPERATION
111
Code
Name
Causes
Possible Solutions
CoF
Current Offset Fault
The drive starts operation while the induced voltage
stays in the motor (during coasting to a stop or after
fast deceleration).
•
Make a sequence that does not restart operation when induced
voltage stays in the motor.
•
Set
b3-01 = 1 [Speed Search at Start Selection = Enabled]
.
•
Use
Speed Search from Fmax or Fref [H1-xx = 61, 62]
to do a
speed search through one of the external terminals.
Note:
When controlling the PM motor, External Speed Search
commands 1 and 2 operate the same.
CPF00 to
CPF03, CPF07
to CPF08,
CPF11 to
CPF14, CPF16
to CPF24, and
CPF26 to
CPF39
Control Circuit Error
A drive hardware problem occurred.
•
Re-energize the drive.
•
If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact Yaskawa
or your nearest sales representative.
CPF06
Control Circuit Error (EEPROM
memory Data Error)
The drive power supply was de-energized while a
communication option entered a parameter Write
command.
Set
A1-03 = 2220, 3330 [Initialize Parameters = 2-Wire
Initialization, 3-Wire Initialization]
and initialize the drive.
dEv
Speed Deviation
The load is too heavy.
Decrease the load.
DIFF
Differential Feedback Exceeded
The difference between the PID Feedback and
Differential Level Source [H3-xx = 2D]
is more than
the level set in
Y4-18 [Differential Level]
for the time
set in
Y4-19 [Differential Lvl Detection Time]
.
•
Replace the feedback transducer or transducers.
•
Make sure that the settings of
Y4-18 [Differential Level] to Y4-20
[Differential Level Detection Sel]
are correct.
dv7
Polarity Judge Timeout
There is a disconnection in the motor coil winding.
Measure the motor line-to-line resistance and replace the motor if a
coil is disconnected.
EF0
Option Card External Fault
The communication option received an external fault
from the controller.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input from the controller.
EF1 to EF8
External Fault (Terminal Sx)
MFDI terminal Sx 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 Sx.
External Fault [H1-01 = 20 to 2B]
is set to MFDI
terminal Sx, but the terminal is not in use.
Correctly set the MFDI.
Err
EEPROM Write Error
There was a problem with the EEPROM hardware.
•
Re-energize the drive.
•
If the fault stays, replace the control board or the drive. Contact
Yaskawa or your nearest sales representative to replace the
board.
FAn1
Drive Cooling Fan Fault
The cooling fan stopped operating correctly.
•
Examine cooling fan operation.
•
Re-energize the drive.
•
Examine
U4-03 [Cooling Fan Ope Time]
and
U4-04 [Cool Fan
Maintenance]
. If the performance life of the cooling fan is
expired or if there is damage to the fan, replace the fan.
FDBKL
WIRE Break
The analog input from the terminal set for
PID
Feedback [H3-xx = B]
is more than 21mA or less
than 3mA for longer than 1 s in these conditions:
•
b5-82 = 2 [Feedback Loss 4
～
20mA Detect Sel =
Fault]
•
b5-01 ≠ 0 [PID Mode Setting ≠ Disabled]
•
H3-01, H3-09, or H3-05 = 2 [Terminal A1/A2/A3
Signal Level Selection = 4 to 20 mA]
Make sure that you install the PID feedback source and it operates
correctly.
GF
Ground Fault
Overheating caused damage to the motor or the motor
insulation is not satisfactory.
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
The motor main circuit cable is contacting ground to
make a short circuit.
•
Examine the motor main circuit cable for damage, and repair
short circuits.
•
Measure the resistance between the motor main circuit cable and
the ground terminal. If there is electrical conduction, replace the
cable.
An increase in the stray capacitance of the cable and
the ground terminal caused an increase in the leakage
current.
•
If the wiring length of the cable is more than 100 m, decrease the
carrier frequency.
•
Decrease the stray capacitance.
There was a problem with the drive hardware.
Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
HFB
High Feedback Sensed
The feedback level is more than the level set in
Y1-11
[High Feedback Level]
for the time set in
Y1-12
[High Feedback Lvl Fault Dly Time]
.
•
Decrease the feedback level less than
Y1-11
.
•
Set
Y1-11
and
Y1-12
correctly.
