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Monitoring device for safety loop between coupled rail vehicles uses constant current source for testing breaker contacts within safety loop prior to operation
Monitoring device for safety loop between coupled rail vehicles uses constant current source for testing breaker contacts within safety loop prior to operation
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机译:耦合轨道车辆之间安全回路的监视设备使用恒定电流源,在运行之前测试安全回路内的断路器触点
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摘要
The safety loop monitoring device uses a constant current source (G1) for testing breaker contacts (K4.1,..K4.n) within the safety loop, connected in series with actuators (K3.1,..K3.n), prior to operation, with evaluation of the obtained signals by combining with signals from at least 2 current sensors (I1,I2) at different positions in the safety loop, via an evaluation circuit (A1). The safety loop terminals are provided via addressable, remote-controlled bridge relays (K1.1,K1.2).
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