1. Controlled Stop for a High-Inertia Grinding Machine
A large industrial grinding wheel has significant inertia and cannot be stopped abruptly without causing damage. The G9SA-321-T15 can be used to manage its shutdown sequence safely.
Problem SolvedWhen an emergency stop is triggered, the instantaneous contacts can immediately cut power to the grinder's feed motor, while the delayed contacts, set to a few seconds, allow the main grinding wheel motor to brake to a complete stop before disengaging the clutch, preventing mechanical shock.
Safety RelayOff-delayEmergency StopHigh-Inertia LoadGrinding Machine
2. Safe Door Interlock for a Robotic Cell with a Gantry Robot
A robotic cell with a large gantry robot requires a safe way to allow operator access for maintenance or part loading. The robot needs to come to a complete stop in a safe position before the door can be unlocked.
Problem SolvedThe G9SA-321-T15's dual-channel input can be connected to the door interlock switch. When the door is opened, the instantaneous contacts immediately signal the robot controller to initiate its safe stop sequence. The off-delay contacts are used to keep the magnetic door lock engaged for a preset time, ensuring the robot has fully stopped before the operator can enter the cell.
Safety InterlockRobotic CellGantry RobotDelayed OutputAccess Control
3. Sequenced Shutdown of a Conveyor System
In a long conveyor system, an emergency stop needs to shut down the conveyors in a specific sequence to prevent product pile-ups and damage.
Problem SolvedThe G9SA-321-T15 can be part of a distributed safety system. When an E-stop button is pressed, the instantaneous contacts can immediately stop the upstream conveyors. The off-delay contacts can be used to stop the downstream conveyors after a short delay, allowing them to clear any product before stopping, thus preventing jams.
Conveyor SystemSequenced ShutdownEmergency StopSafety RelayMaterial Handling
