I. Introduction of the inverter
1. Inverter nameplate
Inverter
The nameplate shows some basic information and data of the inverter. With this information and data, we can understand the specific specifications and application methods of a frequency converter:
INPUT Input frequency, input voltage and current range: The main power supply of the frequency converter must meet the input voltage, current and frequency range requirements.
OUTPUT Output frequency, output voltage and current range: refers to the power supply indicator that the inverter supplies to the AC motor.
The apparent power of the POWER converter: the capacity of the inverter, in KVA.
AC-MOT Inverter power: The maximum adaptable motor power of the inverter, in KW.
ART-NR Inverter Model: The inverter model is important information for the inverter. It is a string of numbers and letters. The format is xx.F5.A1x-3xxA. Its first and second digit codes indicate the power level of the inverter, the third and fourth digit codes F5 are represented as F5 series inverters, the fifth digit code A represents the elevator dedicated inverter, and the sixth digit code 1 indicates The built-in braking unit of the inverter, the seventh digit code indicates the size of the casing of the inverter, the eighth code 3 indicates that the input level of the inverter is three-phase 380V, the ninth digit code refers to the switching frequency of the inverter, and the tenth code is Refers to the type of PG card on the inverter. The eleventh code A refers to the inverter as the standard heat dissipation method.
Such as 14.F5.A1E-3AMA inverter, it represents the power of 7.5KW, E chassis, three-phase 380V input, PG card is a sine cosine encoder card F5 elevator inverter.
Serial number of the SER-NO inverter: The serial number is the machine code, which is convenient for KEB company.
The inverter is registered and managed.
2. Power line terminal power line
The power line terminal of the inverter is the main circuit terminal of the inverter. The main power supply, motor and braking resistor of the inverter are connected to the power line terminal through the power cable:
Main power terminal L1/L2/L3: Three-phase AC connected to the main power supply.
Motor line terminal U/V/W: Connect the elevator traction machine. Note that the UVW terminals on the inverter must be connected in one-to-one correspondence with the UVW terminals on the traction machine.
The main power terminal and the motor line terminal must not be connected in reverse, otherwise the module inside the inverter will burn out!
Braking resistor terminal ++/PB: The F5 elevator inverter has built-in braking unit, which can directly connect the braking resistor of the corresponding specification.
Motor overheat protection terminal T1/T2: Some traction machines contain a thermistor that detects the temperature of the motor and can be connected to T1/T2. If not used, please short T1/T2, otherwise the inverter will have a fault “E.dOHâ€.
Ground terminal PE: Connect the ground wire in the power line.
3. Control line terminal
The control line terminal is the terminal of the inverter control circuit and is part of the inverter control board. It is an input and output port for transmitting various control signals between the inverter and the host computer and external devices. The X2A console has a total of 29 terminals, including:
Analog terminals 1 ~ 9: Analog signal I/O, power supply, analog ground.
Digital terminals 10 ~ 23: digital signal I / O, power supply, digital ground.
Relay terminals 24 ~ 29: Two relay outputs.
The signals that the inverter needs to input when the elevator is running mainly include: enable, direction and multi-speed. The signals that need to be output are: main contactor control, brake control, ready and open the door in advance.
4. Encoder PG card
The PG card is an important part of the inverter and a relatively precise input and output terminal on the inverter. There are two sockets on the PG card:
X3A jack: For the 15-hole jack, the traction encoder rotary cable plug of the traction machine is plugged into this port, which is the input jack.
X3B jack: It is a 9-hole jack. The elevator control system crossover output cable plug is plugged into this jack. This jack is the output jack.
Note: Before powering up the drive for commissioning, make sure that the power line, control loop, and encoder line are properly connected.
II. Use of the operator
The operator of the frequency converter is a tool for on-site commissioning. Through the operator we can adjust and modify the parameter settings of the inverter. The operator panel contains three parts: keyboard, indicator light and display:
1. Keyboard: A total of 4 keys
Direction key ↑↓: The upper and lower keys are used to adjust the parameter number and parameter value.
Function key FUNC.: The key on the right for switching between parameter name and parameter value.
Confirm key ENTER: The key on the left, modify the parameter value and press this key to confirm the save.
2. Indicator light
Fault indicator: The red indicator light on the right side. When the inverter is normal, the indicator light is on and blinks when a fault occurs.
Communication indicator: The green indicator on the left side is generally not lit, and it lights up during communication.
3. Display
A 5-character display can be displayed for displaying parameter names, parameter values, and various states.
(Introduction of special characters)
During debugging, use the arrow keys to select the parameter to be modified, then press the FUNC. key to enter the display parameter value, then press the direction key to adjust the parameter, then press the ENTER key to confirm and save, and finally press FUNC. to exit.
III. CP mode and application mode
There are two main modes of F5 inverter, both of which can be debugged without affecting each other. The two modes are switched by password:
CP mode: Also known as user mode, the parameters are few, the debugging is simple, and the password is 200.
Application mode: Also known as the full mode, the parameters are more, the debugging is complicated, and the password is 440.
Under normal circumstances, the user can debug in the CP mode, and then switch to the application mode to adjust if necessary. For the switching method, see page 78 of the KEB F5 Lift Instruction Manual.
IV. CP parameter debugging synchronous traction machine
There are 37 CP parameters: CP.0 ~ CP.36, of which CP.0 ~ CP.30 are both readable and writable, and CP.31 ~ CP.36 are read-only parameters. When debugging, please follow the steps below:
1. Enter the motor parameters and adaptive CP.1 ~ CP.7/CP.8:
CP.1: rated current of the motor;
CP.2: rated motor speed;
CP.3: rated motor frequency;
CP.4: Motor thousand-turn back EMF;
CP.5: rated torque of the motor;
CP.6: motor stator coil resistance;
CP.7: Motor stator coil inductance.
The motor parameters are generally set according to the motor nameplate. You must pay attention to:
The rated frequency and rated speed must meet the relationship, p must be the pole logarithm.
CP.4 Motor Thousands of Back EMFs If not given on the motor nameplate, the following formula is used:
Adaptive: Adaptive means that the inverter is optimized according to the motor parameters. Therefore, after completing the motor parameter setting, set CP.8 to 1, press ENTER to confirm, and the operator displays PASS.
2. Encoder parameters CP.22 ~ CP.23
Set the encoder parameters accurately according to the actual encoder condition:
CP.22: Encoder line number, the default is 2048.
CP.23: Encoder inversion parameter, default is 0.
Note: The final setting of CP.23 should be determined according to the result of the subsequent steps. This step first presets it to 0, and then performs the debugging of the next step.
3. Motor encoder self-learning CP.24
If the value of the original CP.24 is known, it can be entered directly without self-learning.
Prerequisite: The traction machine is unloaded, the wire rope and the traction machine are disconnected, and the encoder and each cable are installed and connected firmly.
Proposal: In order to check whether the encoder feedback signal is normal, you can manually unscrew the traction machine before self-learning, then manually move the traction sheave, and observe whether the actual speed feedback of parameter CP.32 is displayed. If the speed without feedback is displayed, self-learning is not possible and the cause must be checked.
Self-learning: Set CP.24 to 2206, press ENTER to confirm, and the operator displays PASS. Switch the parameter to CP.36, which is the inverter status. The display should be nop. Press and hold the service button (upstream or down), and observe the parameter CP.36, which should be displayed as cdd, so wait for 30 seconds. If the CP.36 display changes to 127 or cddr, it means self-learning is completed. , the service button can be released. At this time, the value of CP.24 is the motor zero value derived from self-learning.
It is recommended to do self-learning 3 to 5 times as described above.
Self-learning cannot be completed: the contactor trip of the elevator system occurs during the self-learning process, or the inverter has “E.EnC†and other fault protection.
Solution: Check the UVW three-phase phase sequence of the power cable of the inverter and the motor, and connect them one to one. Set parameter CP.23 to 1, and re-learn.
If it is still unsuccessful, you need to check the encoder, encoder cable and PG card for faults.
Self-learning success judgment: the motor is unloaded, the wire rope is disengaged, and the required service speed value is set in the inspection speed CP.12. Run according to the maintenance switch, and observe the operating current of CP.33, about 0.5A is normal, if it is too large, you need to re-learn.
Hang the wire rope, start maintenance, and observe whether the elevator is running normally. If the running direction is reversed,
Increase the CP.23 value by 16. Non-replaceable motor phase sequence!
4. Speed ​​setting CP.9 ~ CP.14
The setting of each speed of the elevator can be followed by the normal express train.
CP.9: elevator re-leveling speed;
CP.10: elevator crawling speed;
CP.11: rated speed of the elevator;
CP.12: elevator maintenance speed;
CP.13: The first medium speed of the elevator;
CP.14: The second medium speed of the elevator.
Note: The above speed values ​​are the motor speed, unit rpm.
5. Slope adjustment CP.16 ~ CP.19
The following parameters are used to adjust the slope of the elevator running curve acceleration and deceleration section slope, adjusted according to the comfort situation:
CP.16: S curve acceleration time;
CP.17: acceleration time;
CP.18: S curve deceleration time;
CP.19: Deceleration time.
Note: CP.16 < CP.17, CP.18 < CP.19.
6. Brake time limit CP.20 ~ CP.21
The following parameters are used to adjust the brake mating time and adjust according to the actual timing and comfort:
CP.20: Brake release time.
CP.21: Brake closing time.
7. Operating comfort adjustment CP.25 ~ CP.27
CP.25: Speed ​​regulator scale factor.
CP.26: Speed ​​regulator integral coefficient.
The above two parameters are used to adjust the comfort of the elevator's steady speed section: if the elevator feels bumpy when running at steady speed, such as sitting on the sedan, CP.25, CP.26 will be increased; if the speed oscillation is felt, CP.25, CP will be .26 is reduced.
CP.27: Speed ​​regulator integral offset.
This parameter is used to adjust the comfort during starting. If there is a feeling of jerk when the elevator brake is released, the CP.27 can be increased until the start is smooth and there is no feeling.
8. Leveling accuracy adjustment
The leveling accuracy is achieved by adjusting the crawling speed CP.10. If the level is flat, the CP.10 is increased, and if the level is leveled, the CP.10 is lowered.
9. Monitoring parameters CP.31 ~ CP.36
According to the monitoring parameters, you can observe the status of the inverter and motor:
CP.31: Set the speed.
CP.32: Actual speed.
The actual speed of the elevator should follow the set speed.
CP.33: Actual current.
The actual current is compared to the rated motor current.
CP.34: Input terminal status.
CP.35: Output terminal status.
The status of the input and output terminals is the signal status of the control terminals, which can be used to analyze timing, faults, and so on.
CP.36: Inverter status.
The inverter status shows the timing status of each period of operation and also displays the information at the time of the failure.
V. CP parameter debugging asynchronous traction machine
There are 37 CP parameters: CP.0 ~ CP.36, of which CP.0 ~ CP.30 are both readable and writable, and CP.31 ~ CP.36 are read-only parameters. When debugging, please follow the steps below:
1. Enter the motor parameters and adaptive CP.1 ~ CP.7/CP.8:
CP.1: rated current of the motor;
CP.2: rated motor speed;
CP.3: rated voltage of the motor;
CP.4: rated power of the motor;
CP.5: motor power factor;
CP.6: rated motor frequency;
CP.7: Motor stator coil resistance.
The motor parameters are generally set according to the motor nameplate. You must pay attention to:
Rated frequency and
The rated speed must satisfy the relationship and p must be the pole logarithm.
Adaptive: Adaptive means that the inverter is optimized according to the motor parameters. Therefore, after completing the motor parameter setting, set CP.8 to 1, press ENTER to confirm, and the operator displays PASS.
2. Encoder parameters CP.22 ~ CP.23
root
Accurately set the encoder parameters according to the actual encoder condition:
CP.22: Number of encoder lines, the default is 1024.
CP.23: Encoder inversion parameter, default is 0.
Note: The final setting of CP.23 should be determined according to the result of the subsequent steps. This step first presets it to 0, and then performs the debugging of the next step.
3. Open loop and closed loop debugging CP.24
CP.24 control mode
0 open loop control
4 closed loop control
First set CP.24 to 0 open loop debugging, set the required maintenance speed value in the inspection speed CP.12, press the maintenance switch to observe whether the set speed CP.31 is in the same direction as the actual speed CP.32 value. Whether the size is close. If the direction is reversed, set CP.23 to 1.
After completion, set CP.24 to 4 closed loop debugging, press the maintenance switch to observe whether CP.32 and running current CP.33 are normal.
4. Speed ​​setting CP.9 ~ CP.14
The setting of each speed of the elevator can be followed by the normal express train.
CP.9: elevator re-leveling speed;
CP.10: elevator crawling speed;
CP.11: rated speed of the elevator;
CP.12: elevator maintenance speed;
CP.13: The first medium speed of the elevator;
CP.14: The second medium speed of the elevator.
Note: The above speed values ​​are the motor speed, unit rpm.
5. Slope adjustment CP.16 ~ CP.19
The following parameters are used to adjust the slope of the elevator running curve acceleration and deceleration section slope, adjusted according to the comfort situation:
CP.16: S curve acceleration time;
CP.17: acceleration time;
CP.18: S curve deceleration time;
CP.19: Deceleration time.
Note: CP.16 < CP.17, CP.18 < CP.19.
6. Brake time limit CP.20 ~ CP.21
The following parameters are used to adjust the brake mating time and adjust according to the actual timing and comfort:
CP.20: Brake release time.
CP.21: Brake closing time.
7. Operating comfort adjustment CP.25 ~ CP.27
CP.25: Speed ​​regulator scale factor.
CP.26: Speed ​​regulator integral coefficient.
The above two parameters are used to adjust the comfort of the elevator's steady speed section: if the elevator feels bumpy when running at steady speed, such as sitting on the sedan, CP.25, CP.26 will be increased; if the speed oscillation is felt, CP.25, CP will be .26 is reduced.
CP.27: Speed ​​regulator integral offset.
This parameter is used to adjust the comfort during starting. If there is a feeling of jerk when the elevator brake is released, the CP.27 can be increased until the start is smooth and there is no feeling.
8. Leveling accuracy adjustment
The leveling accuracy is achieved by adjusting the crawling speed CP.10. If the level is flat, the CP.10 is increased, and if the level is leveled, the CP.10 is lowered.
9. Monitoring parameters CP.31 ~ CP.36
According to the monitoring parameters, you can observe the status of the inverter and motor:
CP.31: Set the speed.
CP.32: Actual speed.
The actual speed of the elevator should follow the set speed.
CP.33: Actual current.
The actual current is compared to the rated motor current.
CP.34: Input terminal status.
CP.35: Output terminal status.
The status of the input and output terminals is the signal status of the control terminals, which can be used to analyze timing, faults, and so on.
CP.36: Inverter status.
The inverter status shows the timing status of each period of operation and also displays the information at the time of the failure.
VI. Application mode
In the application mode, the operator is used in the same way as the F4 operator.
Parameters, parameter groups, parameter sets.
Common application mode parameters are introduced:
EC.27: frequency division factor;
uF11: switching frequency;
Pn.35: pre-excitation time;
dS.00: current regulator scale factor;
dS.01: current regulator integral coefficient;
Ec.00: encoder type;
In.24: fault record;
Sy.03: Power module.
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