A communications data error
occurred due to noise.
• Check the various options available to minimize the effects of noise.
• Counteract noise in control circuit, main circuit, and ground wiring.
• Use Yaskawa-recommended cables, or another type of shielded line. Ground
the shield on the controller side or on the drive input power side.
• Ensure that other equipment such as switches or relays do not cause noise and
use surge suppressors if required.
• Separate all wiring for communications devices from drive input power lines.
Install an EMC noise filter to the input side of the drive input power.
CF
Control Fault
A torque limit was reached continuously for three seconds or longer during a ramp
to stop while in Open Loop Vector Control.
CoF
Current Offset Fault
The current sensor is damaged or there was residual induction current in the motor
(e.g., during sudden deceleration or when coasting) when the drive attempted to
start the motor.
Cause
Possible Solution
Due to residual induction current in
the motor when the drive attempted
to start the motor, the drive
attempted to adjust the current
offset value beyond the allowable
range.
• Create a motor restart sequence that allows enough time for the residual
induction voltage to dissipate.
• Enable Speed Search at start (b3-01 = 1). Use the multi-function terminals to
execute External Speed Search 1 and 2 (H1-
oo
= 61 or 62).
Note:
When using a PM motor, both External Speed Search 1 and 2 perform the
same operation.
CPF02
A/D Conversion Error
An A/D conversion error occurred.
CPF03
PWM Data Error
There is a problem with the PWM data.
CPF06
EEPROM Data Error
There is an error in the data saved to EEPROM.
Cause
Possible Solution
Control circuit is damaged.
Cycle power to the drive. If the problem continues, replace the drive.
The power supply was switched off
when parameters were written (e.g.,
using a communications option
card).
• Cycle power to the drive and check operation again.
• Initialize the drive using A1-03.
• If the problem persists after initializing the drive, replace the drive.
CPF07
Terminal Board Communications Error
A communication error occurred at the terminal board.
CPF08
EEPROM Serial Communication Fault
EEPROM communications are not functioning properly.
CPF11
RAM Fault
CPF12
FLASH Memory Fault
Problem with the ROM (FLASH memory).
5.2 Fault Detection
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YASKAWA ELECTRIC TOEP C710606 47A YASKAWA AC Drive – V1000 Quick Start Guide
Содержание PROFINET V1000
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