Hydraulic clamp sequence control circuit

This example shows a simple electrical sequence for a hydraulic clamp. Pressing Cycle Start energizes the clamp relay and its valve solenoid. When the clamp reaches the configured position, a limit switch changes state and energizes a second relay that operates the release-valve solenoid. The example is deliberately small so the relationship between command, feedback, and output stays easy to read. It can help a maintenance technician explain a basic fixture sequence or help a designer sketch the control intent before adding a controller. Real clamp systems often require guard switches, two-hand control, pressure confirmation, timeouts, and a safe release strategy, all of which should be engineered for the actual equipment.