Yaskawa AC Drive P1000 Bypass Technical Manual - Manual (Page 180)

HOA Keypad Display Fault Name
FB06
External Motor 1 Overload
Note: A fault reset is not required. An EF0 is sent to the drive and bypass Contactor K3 is
opened.
External overload input is active for motor 1
Cause Possible Solution
Load is too heavy Reduce the load.
Cycle times are too short during acceleration and
deceleration
Increase the acceleration and deceleration times (C1-01 and C1-02).
A general-purpose motor is driven below the rated
speed with a high load
• Reduce the load.
• Increase the speed.
• If the motor is supposed to operate at low speeds, either increase the motor capacity or use a motor
specifically designed to operate in the desired speed range.
HOA Keypad Display Fault Name
FB07
External Motor 2 Overload
Note: A fault reset is not required. An EF0 is sent to the drive and bypass contactor K3 is
opened.
External overload input is active for motor 2
Cause Possible Solution
Load is too heavy Reduce the load.
Cycle times are too short during acceleration and
deceleration
Increase the acceleration and deceleration times (C1-01 and C1-02).
A general-purpose motor is driven below the rated
speed with a high load
• Reduce the load.
• Increase the speed.
• If the motor is supposed to operate at low speeds, either increase the motor capacity or use a motor
specifically designed to operate in the desired speed range.
HOA Keypad Display Fault Name
FB08
Phase Loss Brownout
Note: A fault reset is required. An EF0 is sent to the drive and drive output contactor K2 and
Bypass contactor K3 are opened.
The contactor coil voltage was continuously detected below the configured brownout voltage level
for the configured brownout time.
Cause Possible Solution
Input power is too low. Verify input power is sufficient to power the bypass.
Settings for brownout are incorrect. Verify Z1-27 (Brownout Voltage Level) and Z1-28 (Brownout Time) are set properly.
HOA Keypad Display Fault Name
FB09
Phase Loss Blackout
Note: A fault reset is required. An EF0 is sent to the drive and drive output contactor K2 and
Bypass contactor K3 are opened.
The contactor coil voltage was detected below the configured blackout voltage level.
Cause Possible Solution
Input power is too low or has dipped too low. Verify input power is sufficient to power the bypass.
Settings for blackout are incorrect. Verify Z1-29 (Blackout Voltage Level) is set properly.
6.4 Fault Detection
180 YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual