YASKAWA
TOEPC71061732E HV600 Drive Installation & Primary Operation
99
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Usually, the drive will continue to operate the motor. Some alarms let you select a motor stopping method.
◆
Fault Reset
1. Remove the cause of the fault or alarm.
2. While the keypad is showing the fault or alarm code, push
(RESET) or
on the keypad.
◆
Fault
This section gives information about some of the causes and possible solutions of faults. You must use the Fault Reset
operation to remove the fault before you can operate the drive. Use the information in this table to remove the cause
of the fault.
Code
Name
Causes
Possible Solutions
AUXFB
PI Aux Feedback Level Loss
The analog input from the terminal set for
PI
Auxiliary Control Feedback Level [H3-xx = 27]
is
more than 21 mA or less than 3 mA for longer than 1
s.
Repair transducer or wiring.
bAT
Keypad Battery Low Voltage
The keypad battery voltage is low.
Replace the keypad battery.
bCE
Bluetooth Communication Fault
The smartphone or tablet with DriveWizard Mobile
installed is too far from the keypad.
Use the smartphone or tablet 10 m (32.8 ft) or nearer to the keypad.
Note:
bCE
can occur when the smartphone or tablet is 10 m (32.8 ft)
or nearer to the keypad depending on the specifications of the
smartphone or tablet.
Radio waves from a different device are causing
interference with communications between the
smartphone or tablet and keypad.
Make sure that no device around the keypad uses the same radio
bandwidth (2400 MHz to 2480 MHz), and prevent radio
interference.
bUS
Option Communication Error
The drive did not receive a signal from the controller.
Correct wiring errors.
CE
Modbus Communication Error
The communications cable wiring is incorrect.
Correct wiring errors.
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.
dWF1
EEPROM Memory DWEZ Data
Error
There is an error in the EEPROM peripheral circuit.
•
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.
dWF2
DriveWorksEZ Fault 2
There was a fault in the DriveWorksEZ program.
Examine the DriveWorksEZ program and remove the cause of the
fault. This is not a drive fault.
dWF3
DriveWorksEZ Fault 3
There was a fault in the DriveWorksEZ program.
Examine the DriveWorksEZ program and remove the cause of the
fault. This is not a drive fault.
dWFL
DriveWorksEZ Fault
There was a fault in the DriveWorksEZ program.
Examine the DriveWorksEZ program and remove the cause of the
fault. This is not a drive fault.
