Kone · Frequency Inverter
This fault indicates that the critical safety circuit of the lift has been interrupted or opened while the lift was in service. This is a protective measure to immediately halt lift operation when a safety condition is violated.
Click steps to track your progress.
Inspect all emergency stop buttons in the car and on all landings for activation.
Verify the closed state of all car door and landing door safety interlocks.
Check the position and state of all safety limit switches (e.g., pit switch, final limits).
Perform a continuity test on the entire safety circuit chain to identify any open points.
Examine the safety relays on the master control board for proper operation and contact closure.