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Safety Monitoring Relays with Time Delay. Various output configurations (see below)
IDEM’s SCR-4-TD range are all purpose safety monitoring relays that combine time delayed and non time delayed contacts in a compact 22.5mm housing.
This permits dangerous components of a system to be switched off quickly and safely, whilst at the same time other circuits are still supplied with voltage for up to 30 seconds (adjusted on the SCR-4-TD by a potentiometer).
If the application requires time delayed opening of a safety circuit following activation of the stop signal then the SCR-4-TD range will provide combination of instant and variable delayed contacts.
This may be useful for applications that rely on PLC control to provide an initial controlled shutdown but ultimately requires a delayed opening of safety circuit.
Variants
SCR-4-TD-1 with Instant 3NC and Delayed 1NC
SCR-4-TD-2 with Instant 2NC and Delayed 2NC
SCR-4-TD-3 with Instant 1NC and Delayed 3NC
Featuring:
Force Guided Safety output Contacts:
Standards: EN60204-1, EN954-1, ISO13849-1, EN62061.
Stop Category: 0 (non time delayed) 1 (time delayed).
Up to Category 4 to EN954-1.
Up to PLe to ISO13849-1.
SILCL 3 EN62061.
Single or Dual Channel input with LED indication of input status.
Redundancy cycle monitoring.
Feedback loop for monitoring contactors or expansion modules.
Short circuit and earth fault monitoring.
22mm Din Rail Mounting.
SCR-4-TD:具有延时的安全监控继电器
具有延时的安全监控继电器。
各种输出配置(见下面)
IDEM的SCR-4-TD系列是全用途安全监控继电器，在紧凑的22.5mm外壳中结合了时间延迟和非时间延迟触点。
这允许一个系统的危险部件被快速和安全地切断，同时其他电路仍然提供高达30秒的电压(通过电位器调整SCR-4-TD)。
如果应用程序需要在停止信号激活后延时断开安全电路，则SCR-4-TD范围将提供即时和可变延时触点的组合。
这可能对依赖PLC控制的应用程序提供一个初始控制关机，但最终需要安全电路的延迟打开有用。
变体:
SCR-4-TD-1具有即时3NC和延迟1NC
SCR-4-TD-2具有即时2NC和延迟2NC
SCR-4-TD-3具有即时1NC和延迟3NC
特色:
力导安全输出
标准:EN60204-1、EN954-1、ISO13849-1、EN62061。
停止类别:0(非延时)1(延时)。
4级至EN954-1。
可达PLe至ISO13849-1。
SILCL 3 EN62061。
单路或双路输入，LED显示输入状态。
冗余循环监测。
反馈回路监测接触器或扩展模块。
短路和接地故障监测。
22mm Din Rail安装。
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