Digital Operator Display Minor Fault NameEF1 External Fault (Input Terminal S1)External fault at multi-function input terminal S1.EF2 External fault (input terminal S2)External fault at multi-function input terminal S2.EF3 External fault (input terminal S3)External fault at multi-function input terminal S3.EF4 External fault (input terminal S4)External fault at multi-function input terminal S4.EF5 External fault (input terminal S5)External fault at multi-function input terminal S5.EF6 External fault (input terminal S6)External fault at multi-function input terminal S6.EF7 External fault (input terminal S7)External fault at multi-function input terminal S7.EF8 External fault (input terminal S8)External fault at multi-function input terminal S8.Cause Possible SolutionsAn external device has tripped an alarmfunction. Remove the cause of the external fault and reset the multi-function input value.Wiring is incorrect.• Ensure the signal lines have been connected properly to the terminals assigned for external fault detection(H1-oo = 2C to 2F).• Reconnect the signal line.Multi-function contact inputs are setincorrectly.• Check if the unused terminals have been set for H1-oo = 2C to 2F (External Fault).• Change the terminal settings.Digital Operator Display Minor Fault NameFbHExcessive PID FeedbackThe PID feedback input is higher than the level set to b5-36 for longer than the time set to b5-37, and b5-12is set to 1 or 4.Cause Possible SolutionsParameter settings for b5-36 and b5-37 areincorrect. Check parameters b5-36 and b5-37.PID feedback wiring is faulty. Correct the wiring.Feedback sensor has malfunctioned. Check the sensor and replace it if damaged.Feedback input circuit is damaged. Replace either the control board or the entire drive. For instructions on replacing the control board, contactYaskawa or your nearest sales representative.Digital Operator Display Minor Fault NameFbL PID Feedback LossThe PID feedback input is lower than the level set to b5-13 for longer than the time set to b5-14.Cause Possible SolutionsParameter settings for b5-13 and b5-14 areincorrect. Check parameters b5-13 and b5-14.PID feedback wiring is faulty. Correct the wiring.Feedback sensor has malfunctioned. Check the sensor and replace it if damaged.Feedback input circuit is damaged. Replace either the control board or the entire drive. For instructions on replacing the control board, contactYaskawa or your nearest sales representative.Digital Operator Display Minor Fault NameHbb Safe Disable Signal Input <1>Both Safe Disable Input channels are open.Cause Possible Solutions2.5 Alarm Detection206 YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
