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No.78 fault means when the elevator runs to the end station, the system does not detect the corresponding deceleration switch action

1. After shaft self-learning, the position of deceleration switch has been moved artificially, so it is suggested to conduct shaft self-learning again;
2. It's due to serious slipping of wire rope, suggest that the acceleration and deceleration parameters should be set a little lower to try the operation again, or the parameter P0.02 (maximum speed of the elevator) can also be set a little lower;
3. It can set F0.21 (leveling operation scheme) = 100, save parameters, and power on the all-in-one machine. Enable the scheme of end crawl leveling.

No.39 fault means abnormal height of elevator (serious slipping of wire rope). The elevator is not located on the ground floor and the top floor, but the height data has been below or exceeded the limit value.
1. The guide shoe at the car side or counterweight side is too tight;
2. It is suggested that the acceleration and deceleration parameters should be set a little lower to try the operation again, or the parameter P0.02 (maximum speed of the elevator) can also be set a little lower;
3. It can set F0.21 (leveling operation scheme) = 100, save parameters, and power on the all-in-one machine. Enable the scheme of end crawl leveling.

1. At CLOSE operation, the elevator door has crashes. Adjust the operation curves, reduce CLOSE speed, P19.06 and P19.08.
2. At CLOSE operation, the elevator door closes and then open: CLOSE obstruction misjudgment, increase time and judgment coefficient (torque obstruction: P19.15, P19.16; slip obstruction: P19.20, P19.21, P19.22, P19.23; current obstruction: P19.24, P19.25, P19.26, P19.27, P19.28)
3. The elevator door cannot open or close smoothly: the operation curves are set improperly. OPEN stuck: adjust P18.00, P18.02, P18.04, P18.06, P18.08.  CLOSE stuck: adjust P19.00, P19.02, P19.04, P19.06, P19.08. Set speed continuously, neither too high nor too low.
4. There is gap after CLOSE arrival: increase P19.14 and arrival hold torque.

1, Cable connection: transfer the signal to EC20 according to the corresponding relationship of signal lines in the table.
2, Parameters setting: Adjust the speed curve of opening and closing the door according to the corresponding table of parameters until the door is opened and closed smoothly.

1. Hoistway height autotuning succeeded.
2. Ensure no one is in the car, car top, hoistway or pit, all hall doors and car doors are closed and the safety circuit and door lock circuit are normal.
3. Operate the elevator to run at slow speed to the middle floor in the engine room, shift into automation, conduct single-floor command in the controller, check the feedback speed, leveling signal and traction machine whether the elevator can start, accelerate, decelerate, level and stop normally. If abnormal, adjust the related parameters.
4. After normal single-floor running, conduct double-floor command in the controller, check the feedback speed, leveling signal and traction machine whether the elevator can start, accelerate, decelerate, level and stop normally. If abnormal, adjust the related parameters.
5. After normal double-floor running, conduct multi-floor command in the controller, check whether the elevator can start, accelerate, decelerate, level and stop normally. If abnormal, adjust the related parameters.
6. After normal multi-floor running, operate the elevator to run at multi-floor speed to the top and bottom floor and check whether it is normal.
7. After normal running at top and bottom floor, check the valid distance of up and down forced deceleration switch conforms to the standards. After that, check the elevator has top-hitting or bottom-clashing when arriving at the top and bottom floor. If abnormal, adjust the distance of up and down forced deceleration switch.
8. The elevator runs at high speed 100 times at least and EC160 does not alarm any fault; if abnormal, handle the fault according to Fault code.

Problem: For two-landing elevator, because hoistway autotuning cannot autotune the length of magnet vane in the door area, the elevator cannot carry out leveling when running at high speed.
Solution: 1. When the elevator runs to the leveling at the bottom floor, adjust the magnet vane so that the door area switch is in the middle of the magnet vane. Then adjust the magnet vane at the top floor as above.
2. Measure the length of magnet vane, set D parameters setting inquiry- P1 speed and ACC/DEC-06 door area range, redo hoistway information autotuning and save the parameters after autotuning.

Problem: During running, if the clearance between car door knife and hall door ball is so small that friction occurs, when the elevator runs fast, the door lock will break suddenly, the elevator will stop immediately and EC160 may alarm No.137 fault, No.31 fault, A4 No.104 fault, A5 No.105 fault and A6 No.106 fault.
Solution: Before high speed running, inspect running and adjust the clearance so that the hall door ball is in the middle of car door knife.

Problem: If the elevator has the blind layer in hoistway (non-stop floor), the distance between two adjacent magnet vanes is not larger than 9m (after hoistway autotuning succeeds, check D parameters setting inquiry-U2 hoistway information-Longest floor distance through the controller). If the distance is larger than 9m, wrong leveling or overtravel may occur easily when the elevator runs fast.
Solution: 1. If the distance between two adjacent floors is larger than 9m, add the maget vane in the middle, redo hoistway height autotuning and set the added floor to blind layer.
2. Set F0.21. The parameter is used to change EC160 direct stop at the leveling into creepage speed at the leveling (to avoid pulse error, wrong leveling or overtravel due to long floor distance).  
F0.21=50, when the elevator is 50mm from the leveling stop position, it will decelerate to 50mm/s and runs to stop at the constant speed;
F0.21=100, when the elevator is 100mm from the leveling stop position, it will decelerate to 50mm/s and runs to stop at the constant speed;
F0.21=150, when the elevator is 150mm from the leveling stop position, it will decelerate to 50mm/s and runs to stop at the constant speed;
F0.21=200, when the elevator is 200mm from the leveling stop position, it will decelerate to 50mm/s and runs to stop at the constant speed;
According to the actual conditions, set and save the parameter, do not power on until the controller has no display after power off, and then the function can be enabled.

To avoid the autotuning speed is too high, the suggested value of P1.13 is 0.100m/s. High speed running may cause pulse counting lost easily and abnormal position will cause fault and stop;
After hositway autotuning, if the position of magnet vane or forced deceleration switch is adjusted, redo hoistway autotuning.