西门子
3/4
西门子D 21.4·2017年
Safety Integrated
Safety Integrated
3.
■
功能
Safe Torque Off (STO)
STO功能是最常见和最基本的驱动集成
safety function. It ensures that no torque-generating energy can
continue to affect a motor and prevents unintentional start-ups.
Effect
此功能是防止RESTART的驱动器的机制 -
ing unexpectedly, in accordance with EN 60204-1, Section 5.4.
这STO function suppresses the drive pulses (corresponds to
Stop Category 0 according to EN 60204-1). The drive is reliably
无扭矩。此状态在驱动器内部监控。
应用
STO has the immediate effect that the drive cannot supply any
T.orque-generating energy. STO can be used wherever the drive
will naturally reach a standstill due to load torque or friction in a
足够短的时间或当“滑行”的驱动器会出现
没有任何相关性安全。
STO让人们能够安全地工作
保护门是打开的（重启互锁）并用于MA-
带有移动轴的下文/安装，例如，在处理或
输送系统。
Customer benefits
这advantage of the integrated STO safety function compared
T.o standard safety technology using electromechanical switch-
齿轮是消除单独的部件和努力
这将是电线和服务的。因为它
快速电子切换时间，功能较短
reaction time than the conventional solution comprising electro-
mechanical components.
安全停止1（SS1）
SS1功能导致电机快速安全地停止
switches the motor to torque-free mode after coming to a stand-
仍然通过激活sto。
Effect
SS1功能可以根据符合的安全性停止驱动器
EN 60204-1, Stop Category 1. When the SS1 function is selected,
驱动器沿着快速停止坡道自动制动
automatically activates the Safe Torque Off and Safe Brake
控制功能（如果配置）在参数化安全性时
延迟时间到期。
如果具有外部停止（SS1E）的变体“SS1”是参数化的，
当功能是时，驱动器不会自动制动
selected. In this case, the higher-level control must bring the
在参数化STO转换时间内驱动到静止。
SBR（安全制动坡道）和SAM（安全加速度
Monitor) functions are not active. SS1E is a useful function for
需要通过运动控制作为一个组的驱动器
system in order to prevent potential damage to the machine or
产品。
应用
这SS1 function is used when, in the event of a safety-relevant
incident, the drive must stop as quickly as possible with a sub-
sequent transition into the STO state (e.g. EMERGENCY STOP).
因此，它用于将大型离心块带到止动件
尽可能快速地为操作人员的安全，
或者尽快以高速制动电机。
典型应用的例子是锯，磨床
spindles, centrifuges, winders and storage and retrieval ma-
中国人。
Customer benefits
这T.argeted stopping of a drive by means of SS1 reduces the
危险风险，提高了机器的生产力，以及
允许减少机器中的安全间隙。这
原则是将驱动器积极带到静止，比较
with just using the STO function. Complex mechanical brakes
T.hat are susceptible to wear are not normally required to brake
T.he motor.
STO
V.
T.
g_d211_xx_00304
STO
V.
T.
g_d211_xx_00305.
© Siemens AG 2017