20-750-S3 集成安全模块 支持安全转矩关闭 （STO） 功能

【产品详情】

20-750-S3 的技术参数

品牌 Allen-Bradley / 罗克韦尔自动化

系列 PowerFlex 755 系列

零件编号 编号：20-750-S3

产品类型 安全模块

兼容性 PowerFlex™ 755/755T 变频器

安全特性 安全转矩关闭 （STO）

硬连线 STO 是的

20-750-S3 模块是专为 Allen-Bradley PowerFlex 755/755T 系列变频器设计的集成安全模块。该模块支持安全转矩关闭 （STO） 功能。20-750-S3 还提供联网或硬连线 STO 功能。联网的 STO 功能通过以太网电缆提供，安全控制器发出 STO 命令，该命令由连接的 PowerFlex 变频器执行。STO 功能用于防止未经授权的电机操作。STO功能可以与其他安全设备结合使用。20-750-S3 集成安全模块可用于受影响机器的机械工作，但不提供电气安全。由于 STO 功能不会消除驱动器输出端的电压，因此在执行任何维护工作之前，应关闭驱动器的输入电源。

Allen-Bradley 20-750-S3 PowerFlex 755/755T 系列集成安全模块的电源必须由额定直流电压为 24 伏的 PELV 或 SELV 电源供电。模块上的输入是吸电流输入。导通状态输入电压范围为 11 至 30 伏直流电，电流为 3.5 毫安。关断状态的最大输入电压额定值为 5 伏直流电，电流为 3.5 毫安。最小导通状态输入电流额定值为 3.3 毫安。最大关断状态电流额定值为 1.5 毫安。20-750-S3 模块的推荐导体尺寸为 28 至 18 AWG。具有安全功能的产品需要防止导电污染，有两种方法可供选择。这些保护方法包括使用最低防护等级为 IP 54 的密封外壳或提供无导电污染的环境控制位置。20-750-S3 集成安全模块已通过 UL 认证。它还通过了 CE、C-Tick 和 TUV 标准的认证。

20-750-S3 集成安全模块 支持安全转矩关闭 （STO） 功能

【英文介绍】

Technical parameters of 20-750-S3

Brand Allen-Bradley/Rockwell Automation

Series PowerFlex 755 series

Part Number: 20-750-S3

Product type safety module

Compatibility PowerFlex™ 755/755T inverter

Safety Features Safe Torque Off (STO)

Hardwired STO Yes

The 20-750-S3 module is an integrated safety module designed for Allen-Bradley PowerFlex 755/755T series drives. The module supports safe torque Off (STO) functionality. The 20-750-S3 also offers networked or hardwired STO capabilities. The networked STO function is provided via an Ethernet cable, and the security controller issues the STO command, which is executed by the connected PowerFlex inverter. The STO function is used to prevent unauthorized motor operation. The STO feature can be combined with other security devices. The 20-750-S3 integrated safety module can be used for mechanical work on affected machines, but does not provide electrical safety. Since the STO feature does not eliminate the voltage at the driver output, the input power to the driver should be turned off before performing any maintenance work.

The Allen-Bradley 20-750-S3 PowerFlex 755/755T series integrated safety module must be powered by a PELV or SELV power supply with a rated DC voltage of 24 volts. The input on the module is a current-absorbing input. The on-state input voltage ranges from 11 to 30 volts DC with a current of 3.5 MA. The maximum input voltage rating for the off state is 5 volts DC and the current is 3.5 MA. The minimum on-state input current rating is 3.3 MA. The maximum off state current rating is 1.5 MA. The recommended conductor size for the 20-750-S3 module is 28 to 18 AWG. Products with safety features need to prevent conductive contamination, and there are two methods to choose from. These protection methods include using a sealed enclosure with a minimum protection class of IP 54 or providing an environmental control location free of conductive contamination. The 20-750-S3 integrated safety module has passed the UL certification. It is also certified to CE, C-Tick and TUV standards.

20-750-S3 集成安全模块 支持安全转矩关闭 （STO） 功能

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