XBTF032110
电源电抗器必须在以下条件下使用：
 通过低阻抗电源进行操作（电源短路电流大于
技术数据一章中规定（见第25页）。
 如果没有主电源电抗器，驱动器的标称功率不足。
 如果使用带有无功功率补偿系统的供电干线运行。
 用于提高电源输入的功率因数和减少电源谐波。
单电源电抗器可用于多个设备。使用具有适当额定电流的电源电抗器。
低阻抗供电电源在电源输入端产生高次谐波电流。高次谐波电流
导致直流母线电容器上有相当大的负载。直流母线电容器上的负载具有决定性的
对设备使用寿命的影响。
工程
78 0198441113767 09/2017
制动电阻额定值
第3.4节
制动电阻额定值
这部分是什么？
本节包含以下主题：
主题页
内部制动电阻器79
外部制动电阻器80
评级信息81
工程
0198441113767 09/2017 79
内部制动电阻器
驱动器配备有一个内部制动电阻，以吸收制动能量。
动态应用需要制动电阻器。减速过程中，动能为
在电机中转化为电能。电能增加直流母线电压。这个
当超过规定的阈值时，制动电阻被激活。制动电阻变换
电能转化为热能。如果需要高动态减速，制动电阻必须良好
适应系统。
额定值不足的制动电阻器可能会导致直流母线过压。直流母线上的过电压
导致禁用功率级。电机不再主动减速。
警告
非预期设备操作
 通过在大负载下进行试运行，验证制动电阻器是否具有足够的额定值
条件
 确认制动电阻器的参数设置正确。
不遵守这些说明可能导致死亡、重伤或设备损坏。

A mains reactor must be used under the following conditions:  Operation via supply mains with low impedance (short-circuit current of supply mains greater than specified in chapter Technical Data (see page 25).  If the nominal power of the drive is insufficient without mains reactor.  In the case of operation with supply mains with reactive power compensation systems.  For improvement of the power factor at the mains input and for reduction of mains harmonics. A single mains reactor can be used for multiple devices. Use a mains reactor with a properly rated current. Low-impedance supply mains cause high harmonic currents at the mains input. High harmonic currents result in considerable load on the DC bus capacitors. The load on the DC bus capacitors has a decisive impact on the service life of the devices. Engineering 78 0198441113767 09/2017 Rating the Braking Resistor Section 3.4 Rating the Braking Resistor What Is in This Section? This section contains the following topics: Topic Page Internal Braking Resistor 79 External Braking Resistor 80 Rating Information 81 Engineering 0198441113767 09/2017 79 Internal Braking Resistor The drive is equipped with a internal braking resistor to absorb braking energy. Braking resistors are required for dynamic applications. During deceleration, the kinetic energy is transformed into electrical energy in the motor. The electrical energy increases the DC bus voltage. The braking resistor is activated when the defined threshold value is exceeded. The braking resistor transforms electrical energy into heat. If highly dynamic deceleration is required, the braking resistor must be well adapted to the system. An insufficiently rated braking resistor can cause overvoltage on the DC bus. Overvoltage on the DC bus causes the power stage to be disabled. The motor is no longer actively decelerated. WARNING UNINTENDED EQUIPMENT OPERATION  Verify that the braking resistor has a sufficient rating by performing a test run under maximum load conditions.  Verify that the parameter settings for the braking resistor are correct. Failure to follow these instructions can result in death, serious injury, or equipment damage.