YASKAWA T103 Installation & Primary Operation page 82

20 Troubleshooting
Code Name
CP1 Comparator 1 Limit Fault
CP2 Comparator 2 Limit 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
dv1 Z Pulse Fault
dv2 Z Pulse Noise Fault Detection
dv3 Inversion Detection
dv4 Inversion Prevention Detection
dv7 Polarity Judge Timeout
EEPROM Memory DWEZ Data
dWF1
Error
dWFL DriveWorksEZ Fault
MECHATROLINK Watchdog Timer
E5
Err
82
Causes
The monitor value set in H2-20 [Comparator 1
Monitor Selection] was in the range of H2-21
[Comparator 1 Lower Limit] and H2-22
[Comparator 1 Upper Limit].
The monitor value set in H2-26 [Comparator 2
Monitor Selection] was outside the range of H2-27
[Comparator 2 Lower Limit] and H2-28
[Comparator 2 Upper Limit].
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 encoder option card or the encoder on the motor
side is damaged.
Noise interference along the encoder cable.
E5-11 [Encoder Z-Pulse Offset] is set incorrectly.
An external force on the load side rotated the motor.
E5-11 [Encoder Z-Pulse Offset] is set incorrectly.
There is a new encoder or the motor rotation direction
changed.
Noise interference along the encoder cable.
The encoder cable is disconnected or wired
incorrectly.
The drive incorrectly detected the motor magnetic
pole position.
The setting of n8-84 [Polarity Detection Current] is
too low.
Pole Position Detection failed.
The PG option card or the encoder on the motor side
is damaged.
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.
The drive detected a watchdog circuit exception while
it received data from the controller.
YASKAWA TOEPC71061782C GA800 Drive Installation & Primary Operation
Possible Solutions
Examine the monitor value and remove the cause of the fault.
Examine the monitor value and remove the cause of the fault.
• 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.
1. Repair wiring errors and connect disconnected wires. Correctly
ground the shielded wire of the encoder cable.
2. Re-energize the drive
3. 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.
Isolate the encoder cable from the drive output line or a different
source of electrical interference.
Correctly set the value for Δθ to E5-11 as specified by the values on
the motor nameplate.
• Make sure that the motor is rotating in the correct direction.
• Find and repair problems on the load side that cause the motor to
rotate from the load side.
• Disable detection of this fault for applications that rotate the
motor from the load side in the opposite direction of the speed
reference. The drive will not detect this fault if F1-19 = 0
[Deviation 4 Detection Selection = Disabled].
Correctly set the value for Δθ to E5-11 as specified by the values on
the motor nameplate.
Do Z Pulse Offset Tuning.
Correctly ground the shielded wire of the encoder cable.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
If the value for U6-57 [PolePolarityDeterVal] is lower than 819,
increase the value set in n8-84 [Polarity Detection Current].
Consult the motor manufacturer for information about maximum
setting values.
Increase the n8-84 setting from the default. Consult the motor
manufacturer for information about maximum setting values.
If you are using an IPM motor, do High Frequency Injection Auto-
Tuning.
Repair the wiring and re-energize the drive, then replace the PG
option card or the PG if the problem continues.
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 MECHATROLINK cable connection. If this error
occurs frequently, examine the wiring and decrease the effects of
electrical interference as specified by these manuals:
• MECHATROLINK-II Installation Guide (MECHATROLINK
Members Association, manual number MMATDEP011)
• MECHATROLINK-III Installation Manual (MECHATROLINK
Members Association, publication number MMATDEP018)