1: Inverter self-tuning (1) Lift the car and remove the wire rope to confirm that there is no safety failure when the motor is idling. (2) Install the encoder as required and place the encoder line pair. (3) The brake and brake strong contactor KMB and KMZ, the inverter input and output contactors KMC and KMY are effectively sucked together to observe whether the brake is open or not. It is necessary to confirm that there is no friction resistance when the motor is idling. (4) Set the inverter parameter A1-02 to 3 and set the inverter related parameters as described in Chapter 3.2. (5) Set the inverter. According to the method described in 4.2.1, “AUTO-TUNING†appears in the inverter menu. A total of 7 data needs to be input, in order: Rated Voltage rated voltage [VAC] Rated current The rated current of the motor [AAC] Rated Frequency rated frequency of the motor [HZ] Rated Speed ​​Motor Rated Speed ​​[RPM] Number of Poles Number of Motors Selected Motor 1/2 drive motor number PG Pulses/Rev PG number rotary encoder pulse number 2: Typical case analysis: (1) The PGO fault is displayed when the elevator starts the inverter. PGO means loss of feedback, possibly one reason: the brake is not open due to electrical or mechanical reasons, or the motor is mechanically stuck. Possible cause 2: The encoder power cable is disconnected or connected. Possible cause 3: If the S-curve start or stop time is set too long, the actual speed of the elevator is close to zero speed when the elevator starts or stops, and the traction force is small. When the car is under heavy load or full load, the traction machine may be possible. If the car is still unable to move, the inverter still has a speed command output, and a PGO fault occurs. (2) When the elevator is running, the inverter suddenly displays OC fault. The meaning of OC is the overcurrent of the inverter. The possible cause is that the encoder is damaged, causing the feedback to be abnormal and causing the inverter to over-current during the speed adjustment process. Possible cause 2, the motor winding insulation is damaged, and there is a short circuit phenomenon. Possible cause three, the load is too large, and the acceleration time is too short. (3) The inverter suddenly displays an OV fault during elevator operation. OV means the DC side overvoltage of the main circuit. Possible cause one, the analog voltage has a sudden drop, and the acceleration and deceleration slope can be added to the inverter parameters, for example, C1-01=1S, C1-02=1S Possible cause 2: The inverter input voltage E1-01 parameter below 15KW is improperly set, generally set to 400V. If 380V is set, the above fault may occur when the speed is decelerated upward. Possible cause three, the load is too large, and the deceleration time is too short. Possible cause 4: The brake resistor (brake unit) is improperly configured or damaged. (4) GF fault occurs in the inverter when the elevator stops GF means ground fault (the ground current of the inverter output side exceeds 50% of the rated output current of the inverter), which is usually caused by the non-zero current release of the output side contactor. Check if the inverter parameter B1-03 is set to 1 (free coast stop), and the base block signal can be added before the output contactor is released when the vehicle is stopped. In addition, the short-circuit of any one of the U, V, W between the inverter and the motor is also one of the reasons; if the E2-01 is improperly set, it may report a GF fault. (5) When the elevator stops, the inverter has a PUF fault and cannot be recovered. PUF means that the DC side fuse is blown, usually the brake transistor is damaged and the fuse is melted. (6) When the elevator stops, the inverter has SC failure and cannot be recovered. SC means short circuit of load. Possible cause: One of the inverter IGBT modules is damaged. Possible cause 2, the motor winding is short-circuited. (7) There is a step on the given curve when the elevator express decelerates into the board. The given curve is corrected in order to ensure that the distance is directly stopped when the leveling board is inserted. If the error is large, a step will be generated on the given curve. Distance error 1. The length of the slab level is different. Because of the hoistway learning, the system records the length of the 2nd floor slab and the spacing of the Sensor. If the board of other floors is long or short, it will cause errors in the calculation of the pulse during parking. 2. The encoder is disturbed. Sometimes the grounding condition of the equipment room is not good. The encoder signal may be disturbed when it enters the motherboard, resulting in positioning error. 3. The traction machine wire rope slips. Use chalk on the wire rope and the traction wheel to make a mark, then open up and down to see if the mark has a relative displacement. The relative displacement is large: if the wire rope is dirty, the wire rope must be cleaned; if the wire rope or the traction sheave is worn out, the relevant parts must be exchanged. 4. The level sensor is malfunctioning or disturbed. When used for vector control, the inverter parameters are set according to the recommended value of our company, and the inverter has also been self-tuned by the motor. However, when the inverter is still not well matched with the motor during operation, the inverter parameters may be disturbed. At this time, you can record all the E2 parameter values ​​after auto-tuning, then set A1-03=2220 to restore the inverter parameters to the factory defaults, then set the recorded E2 parameters. The other parameters of the inverter are recommended by our company and some The actual site required parameter settings can be debugged. For example, in March 2003, in the elevator on-site commissioning of a company in Harbin, another user in the area reported that they had encountered problems in their own debugging. The inverter parameters were set according to the standard value, and the inverter also made motor self-tuning. But no matter how to debug, the inverter can't match the inverter. Prior to this, they also commissioned three elevators of the same configuration, and the debugging effect was also ideal. The debugging method is the same as before, but I don't know why it is not well adjusted. The customer is also urging the elevator. So I hope I will tune it in the past. After I went to the scene, I checked the parameters of the main computer board and the inverter and the peripheral configuration. There was no abnormality. The self-tuning of the traction machine was also done. However, an abnormality occurred during the operation of the elevator: the elevator acceleration and the constant speed operation were normal; while during the deceleration, the vector control of the inverter was obviously insufficient, resulting in slight loss of control of the traction machine. According to this phenomenon, I carefully analyzed it and judged that some parameters in the inverter may be disturbed. But in a few hundred parameters it is impossible to find out at once. So, I recorded the parameters of E2 after auto-tuning. Then set A1-03=2220 to restore the inverter to the factory default value, then set the E2 parameter to the recorded parameter. The other parameters of the inverter are set according to our recommended values ​​and some actual field required parameters (such as F1-01, etc.). Then debug according to the standard debugging method. As a result, the frequency converter and the traction machine are well matched. Then try to run the slow train, after the slow train is normal, then run the single layer, double layer, multi-layer, top layer, bottom layer express. After the running curve is normal, the comfort level adjustment and level adjustment are performed, as well as various function checks. After commissioning, the comfort and other aspects of the customer are satisfied. Yaskawa inverter elevator comfort adjustment parameters : General conditions: There is vibration at high speed, C5-01↘, C5-02↗ is better; there is vibration at low speed, C5-03↗, C5-04↘ is better. Recommended value adjustment range remarks C5-01 Speed ​​loop proportional gain 1 (at high speed) 15 10~20 C5-02 Speed ​​loop integral gain 1 (at high speed) 0.5 0.4~0.6 (generally not adjusted) C5-03 Speed ​​loop proportional gain 2 (at low speed) 30 20~50 C5-04 Speed ​​loop integral gain 2 (at low speed) 0.5 0.3~0.6 (generally not adjusted) C5-07 switching frequency 10 3~15 If it is a digital speed setting method, Recommended value adjustment range remarks C1-01 Acceleration time 2.5 2.0~3.0 The bigger the acceleration, the more urgent C1-02 Deceleration time 2.5 2.0~3.0 The bigger the deceleration, the more urgent C2-01 Acceleration start S curve 1.2 1.0~1.5 The bigger the starting, the smoother the starting C2-02 Accelerated completion of S curve 0.8 0.8~1.0 (generally not adjusted) C2-03 Deceleration start S curve 0.8 0.8~1.0 (generally not adjusted) C2-04 Deceleration completed S curve 1.0 1.0~1.5 The bigger the parking, the smoother the parking Fourth, the overview of debugging comfort In summary, elevator comfort debugging can generally consider the following relevant factors: (analog) 1. When the elevator starts: a. Main board: Acceleration slope F0, S curve T0, brake delay time 1 b. Frequency converter: C5-03, C5-04, C5-07 c. Machinery: tightness of the guide shoe, tension uniformity of the wire rope 2. When the elevator is parked: a. Main board: Deceleration slope F1, S curve T3, brake delay time 2, leveling adjustment F21 b. Frequency converter: C5-03, C5-04, C5-07 c. Machinery: tightness of the guide shoe, tension uniformity of the wire rope 3. When the elevator runs at high speed: a. Frequency converter: C5-01, C5-02 b. Machinery: Rail verticality, rail joint processing, wire rope tension uniformity Peripheral line configuration 1.1 Digital input: Terminal 1 is running forward C board: Y4 F board: JP 10.4 Terminal 2 reverse running C board: Y5 F board: JP10.5 Terminal 3 external fault programmable H1-01=24; If terminal 3 is not used, the inverter will still report an external fault, and H1-01=F can be set. Terminal 5 multi-speed reference 1 Programmable H1-03=3 F board: JP10.7 Terminal 6 multi-speed reference 2 Programmable H1-04=4 F board: JP10.8 Terminal 7 multi-speed reference 3 Programmable H1-05=5 F board: JP10.9 Terminal 11 is a common terminal C board: COM2 F board: JP10.10 1.2 Digital output (relay): 9-10 Inverter running signal programmable H2-01=0 C board: string into the brake contactor coil circuit F board: JP2.10 18-20 Inverter fault C board: X13 F board: JP2.2 1.3 Analog input: 13 - 17 (0~10V - 0V) C board: V1-V0 F board: JP6.3-JP6.2 2. Some important parameter descriptions A1-01=4 can read/set all parameters A1-02=3 (closed loop); 2 (open loop) A1-03=0 Initialization (usually not used) B1-03=1 Stop mode (inertial stop) C1-01 Acceleration time C1-02 Deceleration time C2-01 Acceleration Start S-curve digital adjustable parameter value C2-02 Accelerates the completion of the S-curve analog C2-03 deceleration start S curve C2-04 Deceleration completed S curve C5-01 Speed ​​loop proportional gain 1 (at high speed) C5-02 Speed ​​loop integral gain 1 (at high speed) C5-03 Speed ​​loop proportional gain 2 (at low speed) C5-04 Speed ​​loop integral gain 2 (at low speed) C5-07 ASR switching frequency (demarcation between high speed and low speed areas) C6-01 Carrier frequency 15KHz is generally not adjusted. Adjustable only when the motor is operating normally, but the sound is sharp and abnormal (≤15KHz) D1-04 crawling speed D1-05 Inspection speed digital adjustable parameter value D1-06 Single layer speed analog is not used, both are 0 D1-07 double layer speed D1-08 multi-layer speed E1-01 Input voltage setting is generally set to 400V E1-04 Maximum output frequency E1-05 Maximum voltage These four parameter values ​​must be set according to the motor nameplate E1-06 Base frequency E1-04=E1-06 Set to motor rated frequency E2-01 Motor rated current E2-03 The initial value of the no-load current of the motor is set to 40% of E2-01, which is automatically generated after auto-tuning. E2-04 Motor pole number PP=120f/N (f-motor rated frequency; N-motor rated speed) In general, N >1000rpm, P=4 pole N≤1000rpm, P=6 pole F1-01 PG parameter rotary encoder calibration value F1-06 PG frequency F1-09 1 Overspeed detection time F1-10 30 Speed ​​deviation excessive detection standard F1-11 3.5 Speed ​​deviation excessive detection time H3-02 100% analog given 13 gain H3-03 0 Analog given 13 offset H3-12 0.04 analog input filter time L3-04 0 The stall prevention function is invalid during deceleration. If set to 1, the speed will not be reduced when decelerating. Monitoring parameter U1-01 Frequency reference (main computer board inverter) U1-02 frequency output (inverter motor) U1-03 Output current can monitor inverter output current change when normal or balance factor is used U1-05 Motor speed The actual motor speed detected by the encoder U1-06 output voltage U1-10 Input terminal status 00000000 (in order of terminal 8 - 1 on and off state: 0 off; 1 pass) U1-11 output terminal status 00000000 (" " is the terminal 18/19-20, 26, 25, 9-10 on and off status) U1-23 speed deviation U2-02 has recently failed U3-01 Last failure message U3-02 Last second failure message U3-03 Last 3rd failure message U3-04 Last 4th failure information U3-05 Cumulative running time when the last fault occurred U3-06 Cumulative running time at the last second failure U3-07 Cumulative running time at the last third failure U3-08 Cumulative running time at the last fourth failure Optoelectronic Information Series Photoelectric information series laboratory related equipment Optoelectronic Information Product,Optical Bench Experiments Physics,Optical Devices Physics,Optical Physics Properties Yuheng Optics Co., Ltd.(Changchun) , https://www.yuhengcoder.com