SYHNC100-NIB-22a/W-24-P-D-E23-A012驱动模块
再生模式下的软网络
再生模式下的软网络是直流技术的一个具体问题。如果电机的电动势更大比（电源电压*1,35*0866），然后保险丝和晶闸管可能被破坏。
尽可能保护驱动器免受损坏
见以下建议：•直流现场保险丝
电枢电路中的半导体保险丝必须：为直流电压确定尺寸，以确保在以下情况下，有足够的火花熄灭间隙：错误。电源中使用的两个串联保险丝提供了折衷方案。
•直流断路器
半导体熔断器仅在“硬”网络中构成对半导体的最佳保护；在“软网络”和电机电路中，这种保护值得怀疑。在“软”网络中，在再生运行期间，风险增加必须预期传导通过。
在电机电路，高速直流断路器这构成了最佳保护。
•净欠压的参数调整将参数净欠压跳闸（1.10）设置在范围内0…5%。这使驱动器对.net敏感欠压，并尽早关闭驱动器可能的可避免保险丝熔断和损坏晶闸管，但可能由于以下原因导致驱动器关闭：F9电源电压过低故障经常发生。然后设置参数净故障时间（1.11）不同于0.0秒至激活自动重合闸功能。
电枢电压参数调整降低参数臂电压标称值（1.02）以便与主电源保持更大的安全距离。
则DCS 400使用自动磁场削弱以达到全速，但在现场会失去扭矩弱化范围。只是一个建议，可能是解决方案也取决于应用。
•订购电枢电压较低的直流电机
如果项目期间已知“软网络”调度，然后计算一个直流电机的电枢电压标称值。这可能是一种预防措施，使EMF和“软网络”之间的安全距离提前。显示状态、报警和故障信号
晶闸管电源的可用信号（信息）
DCS 400系列变频器细分为：•转换器的7段LED
Soft network in regenerative mode Soft network in regenerative mode is a specific problem of DC technology. If EMF of the motor is greater than (Mains Voltage * 1,35 * 0,866) then fuses and thyristors can be destroyed. To protect the drive against damage as far as possible see following recommendations: • Fuses at DC site Semiconductor fuses in the armature circuit must be dimensioned for DC voltages, so as to assure an adequate spark-quenching gap in the event of a fault. A compromise is provided by two seriesconnected fuses, as used in the power supply. • DC circuit breaker Semiconductor fuses constitute an optimum protection for the semiconductors only in “hard” networks; in “soft networks, and in the motor circuit, the protection is questionable. In “soft” networks, during regenerative operation, an increased risk of conduction-through must be anticipated. In the motor circuit, high-speed DC circuit-breaker constitutes optimum protection. • Parameter adjustment for Net Undervoltage Set parameter Net Underv Trip (1.10) in a range of 0…5%. That makes the drive sensitive for net undervoltage and switches off the drive as early as possible. Could avoid blown fuses and damaged thyristors but may be the drive will switch off due to fault F9-Mains Undervoltage very often. Then set parameter Net Fail Time (1.11) different to 0.0 s to activate the auto reclosing function. • Parameter adjustment for armature voltage Decrease value of parameter Arm Volt Nom (1.02) to have more safety distance to the mains supply. Then DCS 400 is using automatic field weakening to achieve full speed but will lose torque in field weakening range. Is a suggestion only may be also a solution depend on application. • Order a DC motor with lower armature voltage If „soft network“ is already known during project scheduling then calculate a DC motor with lower armature voltage nominal. That could be a preventive measure to have more safety distance between EMF and „soft network“ in advance.
