Fault code: 3

Fault description: The frequency converter is not ready for the fault, that is, the frequency converter is in a fault protection state; Improper setting of frequency converter parameters.

Fault solution: Check the source of the fault based on the frequency converter fault display; Check the parameter settings of the output signal of the frequency converter (ready).

Fault code: 4

Fault description: The frequency converter is malfunctioning due to the output direction and enable signal of the motherboard, but the frequency converter operation signal (opening signal R2) is not given.

Troubleshooting: Check the direction of the frequency converter and enable port settings; Check if the frequency converter has not received direction and enable commands; Check if the EMERSONCT frequency converter 19.15 parameter is set too low (recommended value: 600-1200).

Fault code: 5

Fault description: Encoder signal no feedback fault (encoder fault or motor not rotating)

Troubleshooting: Encoder damage (when equipped with a synchronous host, if the encoder is damaged, the elevator cannot run slowly normally); The frequency divider output component of the inverter is damaged; High speed counting input interface wiring error; Motor stalling.

Replace the encoder; Replace the frequency converter divider card; Check the wiring; Check if the brake is not open.

Fault code: 6

Fault description: Encoder signal phase error fault (A, B phase reversed)

Fault solution: The high-speed counting A and B are connected in reverse. Swap the wiring of J16 ports A and B phases, or swap the wiring of J17 ports A+and B+, as well as A - and B -.

Fault code: 8

Fault description: R2 short circuit fault, the operation signal of the frequency converter (opening signal R2) still exists when the elevator stops.

Troubleshooting: Check the parameter settings inside the frequency converter; Check if the output point of the frequency converter operation signal (opening signal R2) is stuck.

Fault code: 9

Fault description: Motor thermal protection.

Fault solution: The motor thermal protection device is activated.

Fault code: 10

Fault description: Communication failure, the control motherboard cannot establish communication with the outbound display board and the car controller.

Troubleshooting: Check for any broken wires in the serial communication circuit or connectors of the accompanying cable; Replace the relevant control board.

Fault code: 21

Fault description: Self learning failed

Troubleshooting: Check if the high-speed count increases or decreases, if the door area switch matches the set total floor, and if the forced deceleration on the top floor is effective.

Fault code: 30

Fault description: The safety circuit is disconnected, the safety circuit is cut off, or the contact of the safety circuit relay is poor.

Troubleshooting: Check the disconnected part of the safety circuit; Replace the safety circuit relay.

Fault code: 31

Fault description: During operation, the door lock disengages and the position of the door knife is not adjusted properly; The door mechanism lacks sufficient holding force; The contact of the door lock contactor is poor.

Troubleshooting: Adjust the door mechanism; Replace the door lock contactor.

Fault code: 32

Fault description: The door lock is short circuited, and both the door lock signal and the door opening signal are activated simultaneously.

Fault solution: Remove the door lock short-circuit wire; Check if there is any misoperation of the door opening switch or if there is an error in the setting of logic 2 parameters on the motherboard.

Fault code: 33

Fault description: The express train is not parked in the door area.

Fault countermeasures: Door lock action, phase sequence action, frequency converter protection or other protective actions during operation; The maintenance is switched to automatic mode in the non gate area.

Combine other fault information to make a comprehensive judgment.

Fault code: 35

Fault description: The door lock relay is stuck, and the high-voltage hall and car door lock monitoring points are not activated, but the door lock contactor contacts are activated.

Troubleshooting: Replace the door lock relay.

Fault code: 36

Fault description: The safety relay is stuck, and the high-voltage safety monitoring point is not activated but the safety contactor contact is activated.

Troubleshooting: Replace the safety relay.

Fault code: 37

Fault description: Operation timeout fault, caused by loss of door area signal, motor stalling, or car obstruction, resulting in the elevator running at high speed beyond the door area.

Troubleshooting: Check the door area signal; Check the traction machine; Check if the operation protection time is set too short (when there are excessively long floors in the elevator).

Fault code: 38

Fault description: The door lock of the high-voltage monitoring hall is disconnected during operation.

Fault code: 39

Fault description: The high-voltage monitoring car door lock is disconnected during operation.

Fault code: 40

Fault description: Leaving the door area has exceeded the time limit by 5 seconds, and the elevator has not left the door area within 5 seconds after starting.

Troubleshooting: Check if the brake is open; Check if the parameter settings of the frequency converter cause slow acceleration.

Fault code: 41

Fault description: The low-speed operation has exceeded the time limit of 20 seconds, and the elevator has not yet reached the door area after 20 seconds of deceleration.

Fault solution: Check if the deceleration time of the frequency converter is set too short; Check if the door area switch is damaged.

Fault code: 42

Fault description: The top and bottom layers are forced to decelerate simultaneously.

Fault solution: Check if the forced deceleration switch is damaged; Check if the forced deceleration signal is disconnected.

Fault code: 43

Fault description: Earthquake input point action.

Fault code: 46

Fault description: stall, elevator speed is greater than 115% of rated elevator speed, immediate action is required.

Troubleshooting: Check if the speed setting of the frequency converter is too high; Recheck the parameter settings.

Fault code: 47

Fault description: The low-speed limit switch is activated.

Fault solution: The limit switch is installed too high, and it will still operate normally until the bottom layer.

Fault code: 48

Fault description: The upper limit switch for slow driving is activated.

Fault solution: The limit switch is installed too low and will operate normally even when it reaches the top level.

Fault code: 50

Fault description: The closing action of the running contactor exceeded the time limit by 1.2 seconds, and the adhesion fault of the running contactor was detected.

Fault solution: The contactor is stuck during operation; Poor contact of auxiliary contacts of the operating contactor.

Fault code: 51

Fault description: The disconnection action of the running contactor exceeded the time limit by 1.2 seconds. The fault was detected that the running contactor did not operate after running.

Fault solution: Poor contact of auxiliary contacts of the contactor during operation; Replace the operating contactor; Check if the feedback point (P3.0) of the operating contactor on the motherboard is normal.

Fault code: 52

Fault description: The closing action of the brake contactor has exceeded the time limit by 1.2 seconds, and an adhesion fault of the brake contactor has been detected.

Fault solution: The brake contactor is stuck; Poor contact of the auxiliary contact of the brake contactor.

Fault code: 53

Fault description: The disconnection action of the brake contactor exceeded the time limit by 1.2 seconds, and a fault was detected where the running contactor did not move after operation.

Fault solution: Poor contact of the auxiliary contact of the brake contactor; Replace the brake contactor; Check if the feedback point (P3.1) of the brake contactor on the motherboard is normal.

Fault code: 54

Fault description: The closing action of the brake travel switch exceeded the time limit by 1.2 seconds, and it was detected that the brake could not be opened after operation.

Fault solution: The brake mechanism is stuck; Poor contact of the brake travel switch.

Fault code: 55

Fault description: The disconnection action of the brake travel switch exceeded 1.2 seconds, and a fault was detected that the brake was not tightened when parking.

Fault solution: The brake mechanism is stuck; Poor contact of the brake travel switch; There are points of poor contact in the control circuit of the brake coil.

Fault code: 56

Fault description: The high voltage monitoring points of the hall and car door locks are both activated, while the low voltage door lock input point is not activated. The door lock circuit is connected, but the door lock relay is not engaged.

Troubleshooting: Replace the door lock relay.

Fault code: 57

Fault description: The safety high voltage monitoring point is activated while the low voltage monitoring point is not activated. The safety circuit is connected but the safety relay is not engaged.

Troubleshooting: Replace the safety relay.

Fault code: 60

Fault description: The door opening is blocked and not in place, exceeding 10 seconds. The elevator door opening action exceeds 10 seconds, and the position switch does not move.

Troubleshooting: Clean the door machine sill; The low-speed torque of the gantry crane is too small, and the parameters of the gantry crane frequency converter need to be reset; Serial communication is abnormal.

Fault code: 61

Fault description: The door closing is obstructed and not in place, exceeding 10 seconds. The elevator door closing action exceeds 10 seconds, and the position switch does not move.

Troubleshooting: Clean the door machine sill; The low-speed torque of the gantry crane is too small, and the parameters of the gantry crane frequency converter need to be reset; Serial communication is abnormal.

Fault code: 62

Fault description: The switch door is in place and the switch is activated simultaneously

Fault solution: The limit switch for opening and closing the door is damaged; The logic setting of the switch door in place signal (normally open/normally closed) is incorrect; Serial communication is abnormal.

Fault code: 64

Fault description: Safety touch panel and light curtain action exceed the time limit by more than 10 seconds

Troubleshooting: Someone is blocking the door mechanism; Damage to the light curtain; The light curtain signal line is broken or short circuited.

Fault code: 65

Fault description: Power outage operation (UPS) operation

Fault solution: Emergency operation function for elevator startup power outage; The logic setting of the power-off operation signal (P4.4) on the motherboard is incorrect.

Fault code: 66

Fault description: The door lock is not working when the door is closed in place, and the door lock is not working when the door is closed in place.

Fault solution: Adjust the position of the door mechanism switch point; Adjust the parameters of the variable frequency door machine; Replace the door lock device.

Fault code: 70

Fault description: Slow limit switch operates simultaneously

Fault solution: The P1.6 (S5W) lower limit signal and P1.7 (S6W) upper limit signal on the motherboard operate simultaneously.

Fault code: 71

Fault description: The medium speed forced deceleration switch is activated simultaneously, and the medium speed forced deceleration signals on P1.4 (S3W) and P1.5 (S4W) on the motherboard are effectively activated simultaneously.

Fault code: 72

Fault description: The low speed forced deceleration switch is stuck, and the P1.2 (S1W) low speed forced deceleration signal on the motherboard remains active for 9 seconds after the elevator leaves the bottom floor.

Fault code: 73

Fault description: The upper and lower speed forced deceleration switch is stuck, and within 9 seconds of the elevator leaving the top floor, the P1.3 (S2W) upper and lower speed forced deceleration signal on the main board remains active.

Fault code: 74

Fault description: The lower medium speed forced deceleration switch is stuck, and the P1.4 (S3W) lower medium speed forced deceleration signal on the main board remains active for 9 seconds after the elevator leaves the ground floor.

Fault code: 75

Fault description: The upper medium speed forced deceleration switch is stuck, and within 9 seconds of the elevator leaving the top floor, the medium speed forced deceleration signal on P1.5 (S3W) of the main board remains active.

Fault code: 76

Fault description: Early opening of door output contactor adhesion fault

Fault solution: P3.2 logic setting error or premature opening output contactor contact fault.

Fault code: 77

Fault description: In a high-speed elevator, the forced switch position is incorrect. When the elevator express encounters S1W while descending, the elevator speed exceeds the speed ratio (%) corresponding to the forced deceleration, and the elevator reports fault 77. Conversely, when it goes up, it also reports fault 77. (The speed ratio can be set, it is invalid if it is greater than 100 or equal to 0).

Fault code: 79

Fault description: floor error protection, report No. 79 fault in the wrong floor, and the elevator returns to the first floor to correct the floor.

Fault code: 84

Fault description: Faults 50, 52, and 54 have been reported 5 times in a row. If the machine stops running, it must be manually reset. At the same time, fault 84 prompts to check the contactor circuit and repair the reset.