YASKAWA A1000 Series Quick Start Manual page 182

5.2 Fault Detection
to CPF26 to CPF35
CPF40 to CPF45
to
Cause
Hardware is damaged
Digital Operator Display
<1>
<1> Available in drive software versions PRG: 1015 and later.
Digital Operator Display
Digital Operator Display
Cause
Data has not been received from the PLC
Digital Operator Display
Cause
An external fault was received from the PLC
and F6-03 is set to a value other than 3.
Problem with the PLC program
Digital Operator Display
182
Control Circuit Error
CPU error
• Cycle power to the drive.
• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a Yaskawa
representative for instructions on replacing the control board.
Speed Deviation (for Control Mode with PG and AOLV/PM without PG)
dEv
The deviation between the speed reference and speed feedback is greater than the setting in F1-10 for
longer than the time set to F1-11.
Z Pulse Fault (CLV/PM control mode only)
dv1
The motor turned one full rotation without the Z Pulse being detected.
Z Pulse Noise Fault Detection (CLV/PM control mode only)
dv2
The Z Pulse is out of phase by more than 5 degrees for 10 consecutive revolutions.
Inversion Detection (CLV/PM control mode only)
dv3
The torque reference and acceleration are in opposite directions and the speed reference and actual motor
speed differ by more than 30% for the number of times set to F1-18.
Inversion Prevention Detection (CLV/PM control mode only)
Pulses indicate that the motor is rotating in the opposite direction of the speed reference. Set the number
dv4 of pulses to trigger inverse detection to F1-19.
Note: Set F1-19 to 0 to disable inverse detection in applications where the motor may rotate in
the opposite direction of the speed reference.
dv7 Initial Polarity Estimation Timeout
dWAL
DriveWorksEZ Fault
dWFL
EEPROM Memory DriveWorksEZ Data Error
dWF1
There is an error in the DriveWorksEZ program saved to EEPROM.
MECHATROLINK Watchdog Timer Error
E5
The watchdog timed out.
Execute DISCONNECT or ALM_CLR, then issue a CONNECT command or SYNC_SET command and
proceed to phase 3. Refer to the SI-T3 Option Technical Manual for more details on troubleshooting.
Option Card External Fault
EF0
An external fault condition is present.
• Remove the cause of the external fault.
• Remove the external fault input from the PLC.
Check the PLC program and correct problems.
External Fault (input terminal S1)
EF1
External fault at multi-function input terminal S1.
Possible Solution
Fault Name
Fault Name
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide