1. PLC Output Signal Inversion
In a control system, a PLC's digital output is HIGH by default, but the connected actuator (like a brake or a clamp) needs to be energized when the PLC output is LOW (fail-safe). This SPST-NC relay can be used to invert the PLC signal.
Problem SolvedProvides logic inversion for fail-safe applications where a device must be active when the control signal is off. The 24VDC coil is directly compatible with standard PLC output voltages, and the slim 10mm width allows for high-density I/O racks.
PLC OutputSignal InversionFail-Safe24VDC ControlSPST-NC
2. Control of Small Solenoid Valves in Pneumatic Systems
Used in an automated pneumatic sorting system to control an array of small, 24VDC solenoid valves. The relay's normally closed contacts ensure that the valves are held in a default, non-actuated state, preventing unintended movement if the control system loses power.
Problem SolvedOffers reliable switching for inductive loads like solenoid valves. The 5A contact rating is sufficient for small solenoids, and the high mechanical life of 50,000,000 operations ensures longevity in high-cycle applications.
Solenoid Valve ControlPneumatic SystemInductive Load SwitchingHigh Cycle RateNormally Closed
3. Status Indication and Alarm Circuits
Integrated into a machine safety monitoring panel. The relay is energized during normal machine operation, keeping an alarm light OFF. If a fault occurs, the PLC de-energizes the relay, and its normally closed contacts complete the circuit to activate a red warning beacon.
Problem SolvedFacilitates a simple and reliable alarm circuit. The 15ms release time ensures a quick response to fault conditions. The relay's isolation between the 24VDC coil and the contacts prevents control circuit noise from affecting the higher-power alarm circuit.
Alarm AnnunciationStatus IndicatorFault ConditionCircuit IsolationFast Release Time
