“In our systems, conventional electro-mechanical relays quickly reach their performance limits,” explains Dominik Wüst, Project Manager at IBL-Löttechnik, the leading developer and manufacturer in the field of Reflow and vapour phase soldering.
“The tin used in soldering PCBs can only be handled over a very narrow temperature range around 230°C. As the individual heating elements in the soldering system cannot be brought to the exact performance required, the heat output has to be controlled by timing. That means constantly alternating between full power and no power. In order to maintain the exact temperature in the solder bath, the heating elements are switched on at one second intervals, as required.”
Such a high number of switching cycles results in
IBL-Löttechnik develops and produces soldering systems in which Weidmüller's Power solid-state relays switch high heating loads reliably and over long periods
partial wear of electro-mechanical relays after only a few months, which means them having to be replaced. This often also means long maintenance periods, which would result in a correspondingly lower throughput for IBL-Löttechnik customers. With its Power solid-state relay, Weidmüller offers a reliable and long-lasting solution with a switching performance that can cope easily with controlling power in various industrial applications, even in extreme surroundings.
Dominik Wüst, IBL-Löttechnik's Project Leader, is delighted with the advantages of Weidmüller's Power solid-state relays
Switching high currents with the right timing
Thanks to their high resistance to shock and vibration, large switching current and the possibility of simple fusing, Power solid-state are far superior to electro-mechanical relays in particular applications. The compact modules also feature low control power, have fast response times and operate silently.
“The optional plug-in PSSR 1PH CONTROL monitoring module offers us an additional advantage. If part of our system malfunctions due to a short circuit, power cut or defective load, it is normally only able to be detected at a very late stage. With this component however, it's really simple to monitor current consumption of up to five loads connected in parallel,” says Mr Wüst happily.
“We attach great importance to our systems' reliability and longevity, so that our customers can, in turn, rely on our promise of quality. Using components from Weidmüller such as the Power solid-state relay, we can meet this challenge completely.”
The solution's advantages at a glance:
A special bonus point: Weidmüller's Power solid-state relays can be extended with a plug-in current-monitoring module
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Switching high loads reliably with Power solid-state relays
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Published in July 2015
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