YASKAWA V1000 Quick Start Manual page 84

5.2 Fault Detection
Cause
While the drive automatically
adjusted the current offset, the
calcluated value exceeded the
allowable setting range. This
problem may occur when attempting
to restart a coasting PM motor.
The drive attempted to write
parameter values when the drive
input power was shut off
(uscommunicaing tions option card).
Cause
Control circuit is damaged.
The drive attempted to write
parameter values when the drive
input power was shut off
(uscommunicaing tions option card).
84
Control Fault
CF
A torque limit was reached continuously for three seconds or longer during a
ramp to stop while in Open Loop Vector Control.
Current Offset Fault
CoF
There is a problem with the current detection circuit or the drive attempted to
start a coasting PM motor.
Enable Speed Search at start (b3-01 = 1).
Use the multi-function terminals to execute External Speed Search 1 and 2
(H1- . = 61 or 62). NOTE: When using a PM motor, both External Speed
Search 1 and 2 perform the same operation.
Reinitialize the drive (A1-03).
A/D Conversion Error
CPF02
An A/D conversion error occurred.
PWM Data Error
CPF03
There is a problem with the PWM data.
EEPROM Data Error
CPF06
There is an error in the data saved to EEPROM.
Cycle power to the drive.
If the problem continues, replace the drive.
Reinitialize the drive (A1-03).
Terminal Board Communications Error
CPF07
A communication error occurred at the terminal board.
EEPROM Serial Communication Fault
CPF08
EEPROM communications are not functioning properly.
CPF11 RAM Fault
FLASH Memory Fault
CPF12
Problem with the ROM (FLASH memory).
Watchdog Circuit Exception
CPF13
Self-diagnostics problem.
YASKAWA ELECTRIC TOEP C710606 14A YASKAWA AC Drive - V1000 Quick Start Guide
Possible Solution
Possible Solution