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Load feeders. Selectively protected by SITOP select
Automation components are normally supplied with 24-volt direct current. With the SITOP select electronic
diagnostic module, each 24 V load is monitored for overload and short-circuit and is shut down when a fault
occurs. One diagnostic module monitors as many as 4 load feeders, which can be brought onto load sequentially
at prescribed times to off-load the power supply.
Advantages of SITOP select for maintenance
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Reduction in downtimes
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Fast fault detection and targeted fault recovery
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Cause of fault precisely identifiable: briefly high switch-on currents, overload or short-circuit
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Analysis of the SITOP select message by the higher-level automation system
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Local problem feeder immediately detectable thanks to LED status display
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