Fault - YASKAWA HV600 Series Installation & Primary Operation

– Usually, the drive will continue to operate the motor. Some alarms let you select a motor stopping method.
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Fault Reset
1. Remove the cause of the fault or alarm.
2. While the keypad is showing the fault or alarm code, push
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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
AUXFB PI Aux Feedback Level Loss
bAT Keypad Battery Low Voltage
bCE Bluetooth Communication Fault
bUS Option Communication Error
CE Modbus Communication Error
CoF Current Offset Fault
CPF00 to
Control Circuit Error
CPF03, CPF07
to CPF08,
CPF11 to
CPF14, CPF16
to CPF24, and
CPF26 to
CPF39
Control Circuit Error (EEPROM
CPF06
memory Data Error)
dEv Speed Deviation
DIFF Differential Feedback Exceeded
dv7 Polarity Judge Timeout
dWF1 EEPROM Memory DWEZ Data
Error
dWF2 DriveWorksEZ Fault 2
dWF3 DriveWorksEZ Fault 3
dWFL DriveWorksEZ Fault
YASKAWA TOEPC71061732E HV600 Drive Installation & Primary Operation
Causes
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.
The keypad battery voltage is low.
The smartphone or tablet with DriveWizard Mobile
installed is too far from the keypad.
Radio waves from a different device are causing
interference with communications between the
smartphone or tablet and keypad.
The drive did not receive a signal from the controller.
The communications cable wiring is incorrect.
The drive starts operation while the induced voltage
stays in the motor (during coasting to a stop or after
fast deceleration).
A drive hardware problem occurred.
The drive power supply was de-energized while a
communication option entered a parameter Write
command.
The load is too heavy.
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].
There is a disconnection in the motor coil winding.
There is an error in the EEPROM peripheral circuit.
There was a fault in the DriveWorksEZ program.
There was a fault in the DriveWorksEZ program.
There was a fault in the DriveWorksEZ program.
(RESET) or on the keypad.
Possible Solutions
Repair transducer or wiring.
Replace the keypad battery.
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.
Make sure that no device around the keypad uses the same radio
bandwidth (2400 MHz to 2480 MHz), and prevent radio
interference.
Correct wiring errors.
Correct wiring errors.
• 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.
• 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.
Set A1-03 = 2220, 3330 [Initialize Parameters = 2-Wire
Initialization, 3-Wire Initialization] and initialize the drive.
Decrease the load.
• 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.
Measure the motor line-to-line resistance and replace the motor if a
coil is disconnected.
• 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.
Examine the DriveWorksEZ program and remove the cause of the
fault. This is not a drive fault.
Examine the DriveWorksEZ program and remove the cause of the
fault. This is not a drive fault.
Examine the DriveWorksEZ program and remove the cause of the
fault. This is not a drive fault.
19 Troubleshooting
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