The SITOP selectivity and diagnostics modules are the optimal extension for all 24-V DC power supplies. They distribute and monitor the load current over several current circuits. Overloads and short circuits on a circuit are reliably recognized and the faulty 24-V DC load circuit reliably disconnected, while the other loads continue with absolutely no interruption; this prevents the complete failure of the plant.
Siemens Application Examples
The following Application Note illustrates how to implement the Electro-Matic Diagnostic Block for Allen-Bradley PLC’s. It is indended as an addendum to the Application Example’s provided by Siemens. Please note that the Electro-Matic Diagnostic Block supports the PSE200U, SEL1200, SEL1400 & PSU6200 modules. Please refer to the Siemens Application Examples for further details.
4-channel input: DC 24 V/12 A output: 24 V DC/4x 3 A Level adjustable 0.5-3 A with common signaling contact
4-channel input: DC 24 V/12 A output: 24 V DC/4x 3 A Level adjustable 0.5-3 A mit status message for each output
4-channel input: 24 V DC/40 A output: 24 V DC/4x 10 A Level adjustable 3-10 A mit status message for each output
8-channel switching characteristic Input: 24 V DC/60 A output: 24 V DC/8 x 10 A Level adjustable 2-10 A with monitoring interface
8-channel with limiting characteristic Input: 24 V DC/60 A output: 24 V DC/8x 10 A Threshold adjustable 2-10 A with monitoring interface