In addition to eliminating the cause of the problem of motor grounding, the most likely part of the failure is the Hall sensor, which is affected by environmental factors such as temperature and humidity, and the working point is easy to drift, resulting in GF alarm.
There are four causes of GF failure, namely, motor burnout or aging insulation, short circuit due to contact with damaged voltage main circuit cable, large leakage current due to large distributed capacitance between the cable and ground terminal, and failure of the inverter.
(1) The solution to the first case is to measure the inter-line resistance of the motor and replace the motor if it is turned on or the insulation has deteriorated.
(2) The solution to the second situation is to first check the main circuit cable of the motor, exclude the part where the short circuit occurs, and then measure the resistance between the main circuit cable of the motor and the ground terminal, and change the cable if it has been turned on.
(3) In the third case, the carrier frequency is not reduced when the cable length exceeds 100 m, and the distributed capacitance is reduced.
(4) The solution to the fourth situation is to replace the motherboard or inverter
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YASKAWA The success of industrial automation starts here
Founded in 1989, Yaskawa Motoman is a leading industrial robotics company in the Americas. With more than 400,000 Motoman industrial robots, 15 million servos and 26 million inverter drives installed worldwide, Yaskawa provides automation products and ...
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The frequency of the frequency converter is given in a given way
1. The simplest way to give the frequency of the inverter is to complete it through the operation panel, and users can usually change the set frequency directly through the potentiometer, digital key or rising and descending keys on the generator panel. The biggest advantage given by the operator panel is that it is simple, ...
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Debugging method steps of Yaskawa servo drive
First, the basic wiring
The main power input is 220V, which is connected from L1 and L3 (the actual use should refer to the operation manual); The control power input r and t can also be directly connected to 220V; See pages 22 and 23 of the operation manual for motor wiring, and see the operation manual for encoder wiring.
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The application of Yaskawa inverter in the petroleum industry
1 Introduction
Over the years, Yaskawa has accumulated very rich experience in the petroleum industry, such as G7/P7/F7/G5/P5/G5HHP/VS and other different series of inverters have been widely used in OEMs, the main fields are centrifugal separators, pumps, fans, transportation equipment ...
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Maintenance method of Yaskawa inverter
Checkpoints for daily use
When inspecting and maintaining the inverter on a daily basis, it is necessary to check the temperature and humidity around you. Excessive temperature will lead to overheating alarms, and in serious cases, it may also lead to damage to some components or short circuits in the circuit. And the humidity in the air ...
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Yaskawa servo drive maintenance alarm C90, AC9 fault handling method
1. Analysis of the causes of Yaskawa servo alarm C90 (AC9):
1. The encoder cable is broken or the encoder plug is made in poor process (there are also wiring errors in the alarm of the new machine);
2. The servo drive itself is faulty;
3. Environmental interference, caused by poor connection: ...
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Midea's holding of Kuka eventually led to Midea's Yaskawa going the other way
Not long ago, it was found from the national enterprise information management system that the joint venture industrial manipulator enterprise founded by Midea and Yaskawa Electric announced the record cancellation/announcement information on April 12, and had already established a liquidation team to accept debt applications.
The joint venture is a joint venture in Guangdong ...
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Common types of Yaskawa drives
H1000
The new Yaskawa "H1000" heavy-duty inverter plays a stable and outstanding role in the heavy-duty industrial field!
Capacity range
200V class 0.4-110kW
400V class 0.4 - 355kW
apply
Lifting Machinery, Fluid Machinery, Metalworking Machines ...
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The solution of Yaskawa servo drive alarm A.F10, A.F50, A.920
A.F10: Power line is out of phase (the low voltage state of one phase of R, S, and T phases lasts for more than 1 second in the state of the main circuit power supply ON)
Cause:
Poor wiring of three-phase wires
The three-phase power supply is unbalanced
Single-phase AC power input is not set (Pn00E ...
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The handling method of Yaskawa inverter alarm F10
Fault analysis: the power line is out of phase
Fault cause: Yaskawa servo motor factory is the default AC three-phase 200V power input, when connected to the single-phase 220V power supply, it will cause the servo driver to alarm A.F10 when the power is turned on.
Troubleshooting: Set the servo parameter Pn00B to n.▢1▢ ...
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Yaskawa inverter – the future of high-voltage inverters
1. High-voltage inverter will develop in the direction of high power, miniaturization and lightweight.
2. The high-voltage inverter will develop in the direction of direct device high voltage and multiple superposition (device series and unit series).
3. New power semiconductors with higher voltage and higher current ...
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Yaskawa inverter - what are the control methods of low-voltage inverter?
1. Sinusoidal pulse width modulation
Sinusoidal Pulse Width Modulation (SPWM) is characterized by simple structure of control circuit, low cost, good hardness of mechanical characteristics, and can meet the smooth speed regulation requirements of general transmission, and has been widely used in various fields of the industry.
However, this control ...
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Robotics propelled Yaskawa Electric to record profits
Yaskawa Electric, one of the world's largest manufacturers of industrial robots, announced a 150% year-on-year increase in net profit for the six months ended Sept. 30.
The Japan company announced that the company reported a profit for the quarter due to the demand for its industrial robots in China, Japan and United States.
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The causes and treatment methods of the fault of the SC of Yaskawa inverter
1. The inverter shows that SC refers to the drive fault.
2. Cause of failure:
1. The output side of the inverter is interphase or short circuit to the ground.
2. The inverter module is damaged.
3. Handling method:
1. Remove the load, power on normally and turn on the machine, check if there is a three-phase ...
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Precautions for the use of Yaskawa industrial robots
1. Before starting the machine, make sure that there is no one and no debris within the action range of the body, and check whether the control box is connected correctly with the body and other equipment
2. Check that the power supply matches the power supply required by the robot
3. Check the individual emergency stop and pause buttons to make sure they are functioning effectively
4. Ontology ...
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What is the reason for Yaskawa servo alarm AF5?
1. When the control power supply is put in, it is caused by the failure of the servo unit circuit board, and the servo unit needs to be replaced.
2. When it occurs in servo ON, then it is caused by the failure of the servo unit circuit board or the short-term motor power line, and the servo unit or motor needs to be replaced.
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Fault codes for Yaskawa servo drives
1. If the fault code on the Yaskawa servo drive is UV1, it means that the low voltage of the main circuit is lower than the low voltage standard of 200V, at this time, we need to check whether there is a problem with the wiring of the power supply;
2. If the ...
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Yaskawa Servo Drive FAQ (10-18)
[10] Yaskawa servo back to the origin can not find the C phase pulse, Yaskawa servo drive and motor, using the travel switch + C phase back to zero mode, now the pressure on the switch deceleration can not find the C phase pulse, servo motor, drive, host computer, which fault is the most likely?
A: Servo motor rotation ...
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Five major faults of servo drive and their solutions
1. Power failure: If the servo drive has no power supply or the power supply is unstable, it will cause the motor to not work properly. The solution is to check the power supply line, confirm that the power supply line is normal and stable, and if the power supply needs to be replaced, select the appropriate power supply.
2. Control signal malfunction ...
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How to deal with the BB flashing of Yaskawa servo drive
1. Check whether the power wiring is in good contact, and if the contact is bad, you need to unplug the power supply and re-wire.
2. Check whether the wiring between the servo drive and the host is in good contact, and if the contact is bad, the wiring needs to be removed and rewired.
3. Check the connection between the main machine and the servo drive.
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