除软起动和软停止外,SIRIUS 3RW44 固态软起动器还具有许多可满足高级别要求的功能。 性能范围在直接串联电路中达 710 kW(400 V),在内三角电路中可达 1200 kW(400 V)。
SIRIUS 3RW44 软起动器的特点为设计紧凑,可节省空间,且控制柜布局直观明了。 在优化电机起动和停机方面,由于在节约方面效果显著,与使用变频器的应用相比,创新的 SIRIUS 3RW44 软起动器极具吸引力。 新扭矩控制和可调电流限值使得高性能软起动器几乎可用于任何一项任务。 电机起动和停机期间可有效避免突发性扭矩应用和电流峰值。 从而在计算开关柜尺寸及维护已安装机器时可创建潜在节约。 对于直接串联电路和内三角电路,SIRIUS 3RW44 软起动器具有节约功效,特别是在尺寸和设备成本方面。
已集成到软起动器中的旁通触点在检测到电机软起动后可绕开晶闸管。 从而使软起动器以额定值工作时大大降低热损失。
结合起动、工作和停机时的各种可能性以确保对特定应用需求的最佳适应。 可通过用户友好键盘和采用背光照明的、具有菜单提示功能多行图形显示器实现工作和调试。 使用预先选择的语言,通过少量设置,即可快速、简便、可靠地优化电机软起动和软停机。 每个菜单项的四键操作和纯文本使得参数化和操作的每个环节都十分直观明了。
SIRIUS 3RW44 固态软起动器适于转矩控制的软起动和软停止,还适用三相感应电机的制动。
由于装配有现代化的、人机工程学用户提示功能,SIRIUS 3RW44 软起动器可通过键盘和采用背光照明的、具有菜单提示功能多行图形显示器快速、轻松地完成调试。 使用选择的语言,通过少量设置,可快速、简便、可靠地优化电机软起动和软停止。 每个菜单项的四键操作和纯文本使得参数化和操作的每个环节都十分直观明了。 工作期间及施加控制电压后,显示区域持续显示测量值、工作值及警告和故障消息。 可通过连接电缆将外置显示器和操作员模块连接到软起动器,从而实现有源指示及直接从控制柜门读取类似消息。
SIRIUS 3RW44 软起动器具有最佳功能。 集成的旁通接触系统可以降低软起动器运行过程中的功率损失。 从而可靠地防止加热开关柜周围的环境。 SIRIUS 3RW44 软起动器具有内置本征设备保护。 可防止电源部分晶闸管的热过载,如由于难以接受的高合闸操作。
因为 SIRIUS 3RW44 软起动器的功能,可省去安装附加电机过载继电器的布线费用。 此还,还具有可调脱扣等级和热敏电机保护功能。 另一种选择,还可使用 SITOR 半导体保险丝防止晶闸管短路,从而在短路后,软起动器仍可工作(协调类型 2)。 由于可调电流限值,还可以可靠地避免突然的电流峰值。
还可使用 PROFIBUS DP 模块升级 SIRIUS 3RW44 软起动器。 由于其通讯能力和可编程控制输入和继电器输出,SIRIUS 3RW44 软起动器可轻松、快速集成到更高一级的控制器中。
此外,还具有爬行速度功能,可用于定位和设置工作。 通过该功能,可控制电机以减小的转矩和可调低速双向转动。
另外,SIRIUS 3RW44 软起动器还具有新的、组合式 DC 制动功能,可用于驱动负载的快速停止。
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