Yaskawa J1000 Compact Vector Control Drive - Manual (Page 141)

Digital Operator Display Fault Name
Excessive torque compensation.
• Check the amount of torque compensation.
• Reduce the torque compensation gain (C4-01) until there is no speed loss and
less current.
Drive fails to operate properly due
to noise interference.
• Review the possible solutions provided for handling noise interference.
• Review the section on handling noise interference and check the control circuit
lines, main circuit lines and ground wiring.
Overexcitation gain is set too high.
• Check if fault occurs simultaneously to overexcitation function operation.
• Consider motor flux saturation and reduce the value of n3-13 (Overexcitation
Deceleration Gain).
Run command applied while motor
was coasting.
• Set b3-01 to 1 to enable Speed Search at Start.
• Program the Speed Search command input through one of the multi-function
contact input terminals (H1- = “61” or “62”).
The wrong motor code has been
entered for in OLV/PM (Yaskawa
motors only).
Enter the correct motor code to E5-01 to indicate that a PM motor is connected.
The motor control method and
motor do not match.
Check which motor control method the drive is set to in A1-02.
• For IM motors, set A1-02 to 0 or 2.
• For PM motors, set A1-02 to 5.
The motor cable is too long Use a larger drive.
Digital Operator Display Fault Name
oFA00
Option Card Connection Error at Option Port CN5
The option card is incompatible with the drive.
Cause Possible Solution
The option card is incompatible
with the drive.
Use a compatible option card.
Digital Operator Display Fault Name
oFA01
Option Card Fault
Replace the option card.
Cause Possible Solution
The option card is not connected
properly to the drive.
Turn the power off and reconnect the option card.
Digital Operator Display Fault Name
oFA03
Option Card Fault
Option card self-diagnostic error
oFA04
Option Card Fault
An error occurred attempting to write to the option card memory.
5.2 Fault Detection
YASKAWA ELECTRIC TOEP C710606 47C YASKAWA AC Drive – V1000 Quick Start Guide 141
5
Troubleshooting