Approvals:
SAFETY MonITORING RELAY. 2NC and 1NO CONTACTS.
The VIPER SCR-21-i safety monitoring relay with added diagnostics from IDEM had been designed and manufactured in the United Kingdom to meet the latest safety standards and offer enhanced LED diagnostics and simplified wiring.
Applications include the monitoring of safety interlock switches (guard door monitoring), emergency stop devices and sensors.
The SCR-21-i internal logic uses force guided relays to achieve cross monitoring, this ensures that a single fault does not lead to the loss of the safety function and that all faults are detected at or before the next safety demand.
FEATURES:
· Outputs 2NC contacts and 1NO contact.
· Fee*ack circuit to monitor external contacts.
· Easy diagnosis of status via visual indication of LEDs.
· Up to PLe, SILCL 3, Category 4.
· Monitored manual or automatic start.
· Single and dual channel operation.
· Output expansion units available to increase number of outputs.
附加诊断的VIPER SCR-21-i安全继电器
批准:
安全监测继电器。
2NC和1NO触点。
VIPER SCR-21-i安全监测继电器是在英国设计和制造的，附加了IDEM的诊断，以满足好新的安全标准，并提供增强的LED诊断和简化布线。
应用包括安全联锁开关的监测(警卫门监测)，紧急停止装置和传感器。
SCR-21-i内部逻辑采用力导继电器实现交叉监控，确保单个故障不会导致安全功能的丢失，并确保所有故障在下一次安全需求时或之前被检测到。
特点:
输出2NC触点和1NO触点。
反馈电路监控外部接点。
通过led的可视指示，很容易诊断状态。
至PLe, SILCL 3，类别4。
监控手动或自动启动。
单、双通道操作。
输出扩展单元可用来增加输出数量。
联系人：侯经理 联系人：13661967205
