How is it safe to control the speed of rotation in an amusement park?
A rotary pendulum
The rotary pendulum is a kind of pendulum and is a popular new type of amusement program. The device is beautiful in appearance, scientific in structure, and magnificent. Tourists ride on a high-speed rotating pendulum swing 360 degrees, it is dazzling, thrilling; tourists can not help but exclaimed and exclaimed, greatly increased the joy of the entire playground, leaving many tourists linger, not Willing to leave.
The device is a 360-degree rotating pendulum produced by an amusement equipment manufacturer in Hebei Province. One end of the pendulum rides on tourists and the other end attaches corresponding weights. Two 45 kW motors are used to drive the pendulum to rotate 360 ​​degrees at the same time. The smooth start-up equipment enables visitors to feel no impact shock at start-up. The company uses the latest PI9000 series inverter from PTC to drive and use it.
The introduction of the second universal transmission
PI Technology PI9200 inverter is a member of PI9000's latest PI9000 series, and is a new high-performance current vector inverter launched by Pu Chuan Technology based on the latest theory and technical results of motor operation and control. Through the decoupling control of the motor flux current and torque current, the rapid response and accurate control of the torque can be achieved, a wide range of speed control operation and torque control can be performed with high accuracy, and the current impact at the start of the equipment is avoided. , Smooth starting equipment to extend equipment life.
Three site usage and precautions
1. The use of entertainment equipment is in a park in Zhoukou, Zhoukou, Henan Province. The equipment is doing circular motion. During the ascent of the tourist, the frequency converter drives the motor to move. During the period of decline, the motor is in the state of power generation. Therefore, it should be used on electrical equipment. The braking resistor of the braking unit consumes excess power in the power generation state to prevent the inverter from overvoltage and other faults. There are two 45kW motors on the equipment so use the PI9200 110G3 inverter (110kW). The brake unit uses two PB6034 units and the braking resistor is two 6.8 ohms and 12 kW.
2, on-site debugging process
F0.03=6 frequency source main set multi-speed operation
F0.11=1 Command source selection terminal operation
F0.13=50 Acceleration time 50 seconds
F0.14=50 Deceleration time 50 seconds
F0.19=60 Maximum frequency 60Hz
F0.21=60 On-line frequency 60Hz
F1.00=1 DI1 terminal selection forward rotation
F1.01=2 DI2 terminal selection inversion
F1.04=12 DI5 terminal selection multi-speed terminal 1
F1.05=13 DI6 terminal selection multi-speed terminal 2
E1.00=0 0 speed setting value
E1.01=60 1-speed setting value
E1.02=100 2 speed setting value
F2.02=1 Relay 1 function selection inverter running
3, because the frequency changer drags two electrical machinery to be unable to use the vector movement, in order to guarantee the electrical machinery can smoothly start the parameter in the low frequency parameter F4.01=0.0
Automatic torque boost
After the modification, the effect is improved.
Four reviews:
With the increase in control requirements in entertainment equipment, frequency converters are becoming more and more widely used in entertainment devices. The PI9000 series inverter has been favored by entertainment equipment manufacturers because of its outstanding performance and good control and protection performance.
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