VDI4685
集成到产品中的安全功能STO可用于实现0类停车的“紧急停车”（IEC 60204-1）。通过一个额外的、经批准的紧急停机安全继电器模块，也可以执行1类停机。功能原理安全功能STO通过两个冗余信号输入触发。两个信号输入的接线必须分开。如果两个信号输入之一的电平为0，则触发安全功能STO。功率级被禁用。电机在没有制动的情况下无法再产生扭矩和滑行。检测到错误级别为3的错误。如果在一秒钟内，另一个输出的级别也变为0，则错误类保持为3。如果在一秒钟内，另一个输出的级别没有变为0，则错误类更改为4。工程90 0198441113767 2017年9月安全功能使用要求安全功能STO（安全扭矩关闭）不会切断直流母线的电源。安全功能STO仅切断电机电源。直流母线电压和驱动电源电压仍然存在。触发安全功能STO后，电机无法再产生扭矩并在没有制动的情况下滑行。逻辑类型安全功能STO的输入（输入STO\U A和STO\U B）只能针对正向逻辑进行接线。保持制动和安全功能STO当触发安全功能STO时，功率级立即禁用。使用抱闸需要一定的时间。在垂直轴或外力作用于负载的情况下，您可能必须采取额外措施使负载停止，并在使用安全功能STO时保持负载停止，例如使用行车制动器。如果悬挂/拉动负载的暂停是机器的安全目标，则只能通过使用适当的外部制动器作为安全相关措施来实现此目标。注意：驱动器不提供自身的安全相关输出，以连接外部制动器作为安全相关措施。危险触电 请勿将安全功能STO用于其预期功能以外的任何其他用途。 使用不属于安全功能STO电路的适当开关断开驱动器与主电源的连接。不遵守这些说明将导致死亡或重伤。警告意外设备操作如果惰行不符合应用程序的减速要求，请安装专用行车制动器。不遵守这些说明可能导致死亡、重伤或设备损坏。警告跌落负载使用安全功能STO时，确保所有负载安全停止。不遵守这些说明可能导致死亡、重伤或设备损坏。警告意外轴移动 不要将内部抱闸用作安全相关措施。 仅使用经认证的外部制动器作为安全相关措施。不遵守这些说明可能导致死亡、重伤或设备损坏

The safety function STO integrated into the product can be used to implement an "EMERGENCY STOP" (IEC 60204-1) for category 0 stops. With an additional, approved EMERGENCY STOP safety relay module, it is also possible to implement category 1 stops. Function Principle The safety function STO is triggered via two redundant signal inputs. The wiring of the two signal inputs must be separate. The safety function STO is triggered if the level at one of the two signal inputs is 0. The power stage is disabled. The motor can no longer generate torque and coasts down without braking. An error of error class 3 is detected. If, within one second, the level of the other output also becomes 0, the error class remains 3. If, within one second, the level of the other output does not become 0, the error class changes to 4. Engineering 90 0198441113767 09/2017 Requirements for Using the Safety Function The safety function STO (Safe Torque Off) does not remove power from the DC bus. The safety function STO only removes power to the motor. The DC bus voltage and the mains voltage to the drive are still present. After the safety function STO is triggered, the motor can no longer generate torque and coasts down without braking. Logic Type The inputs for the safety function STO (inputs STO_A and STO_B) can only be wired for positive logic. Holding Brake and Safety Function STO When the safety function STO is triggered, the power stage is immediately disabled. Applying the holding brake requires a certain amount of time. In the case of vertical axes or external forces acting on the load, you may have to take additional measures to bring the load to a standstill and to keep it at a standstill when the safety function STO is used, for example, by using a service brake. If the suspension of hanging / pulling loads is a safety objective for the machine, then you can only achieve this objective by using an appropriate external brake as a safety-related measure. NOTE: The drive does not provide its own safety-related output to connect an external brake to use as a safety-related measure. DANGER ELECTRIC SHOCK  Do not use the safety function STO for any other purposes than its intended function.  Use an appropriate switch, that is not part of the circuit of the safety function STO, to disconnect the drive from the mains power. Failure to follow these instructions will result in death or serious injury. WARNING UNINTENDED EQUIPMENT OPERATION Install a dedicated service brake if coasting does not meet the deceleration requirements of your application. Failure to follow these instructions can result in death, serious injury, or equipment damage. WARNING FALLING LOAD Ensure that all loads come to a secure standstill when the safety function STO is used. Failure to follow these instructions can result in death, serious injury, or equipment damage. WARNING UNINTENDED AXIS MOVEMENT  Do not use the internal holding brake as a safety-related measure.  Only use certified external brakes as safety-related measures. Failure to follow these instructions can result in death, serious injury, or equipment damage