Yaskawa J1000 Compact Vector Control Drive - Manual (Page 136)

Digital Operator Display Fault Name
Cause Possible Solution
Hardware is damaged. Replace the drive.
Digital Operator Display Fault Name
CPF25 Terminal Board Not Connected
Cause Possible Solution
Terminal board is not connected
correctly.
Reconnect the terminal board to the connector on the drive, then cycle the power
to the drive.
Digital Operator Display Fault Name
dEv
Speed Deviation (for Simple V/f with PG)
According to the pulse input (RP), the speed deviation is greater than the setting
in F1-10 for longer than the time set to F1-11.
Cause Possible Solution
Load is too heavy. Reduce the load.
Acceleration and deceleration
times are set too short.
Increase the acceleration and deceleration times (C1-01 through C1-08).
The load is locked up. Check the machine.
Parameters are not set
appropriately.
Check the settings of parameters F1-10 and F1-11.
Motor brake engaged. Ensure the motor brake releases properly.
Digital Operator Display Fault Name
dWFL DriveWorksEZ Fault
dWAL DriveWorksEZ Program Error Output
Cause Possible Solution
Fault output by DriveWorksEZ Correct the cause of the fault.
Digital Operator Display Fault Name
E5
MECHATROLINK Watchdog Timer Error
The watchdog timed out.
Cause Possible Solution
Data has not been received from the
PLC, triggering the watchdog
timer.
Execute DISCONNECT or ALM_CLR, then issue a CONNECT command or
SYNC_SET command and proceed to phase 3.
Digital Operator Display Fault Name
EF0
Option Card External Fault
An external fault condition is present.
5.2 Fault Detection
136 YASKAWA ELECTRIC TOEP C710606 47C YASKAWA AC Drive – V1000 Quick Start Guide